JPS6085809A - Carbide cemented drilling tool and manufacturing method thereof - Google Patents
Carbide cemented drilling tool and manufacturing method thereofInfo
- Publication number
- JPS6085809A JPS6085809A JP19254383A JP19254383A JPS6085809A JP S6085809 A JPS6085809 A JP S6085809A JP 19254383 A JP19254383 A JP 19254383A JP 19254383 A JP19254383 A JP 19254383A JP S6085809 A JPS6085809 A JP S6085809A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- sintered
- drill
- end mill
- alloy
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005553 drilling Methods 0.000 title claims description 24
- 238000004519 manufacturing process Methods 0.000 title claims description 16
- 239000000843 powder Substances 0.000 claims abstract description 208
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 119
- 239000000956 alloy Substances 0.000 claims abstract description 119
- 229910000997 High-speed steel Inorganic materials 0.000 claims abstract description 37
- 238000005245 sintering Methods 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 claims abstract description 25
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 13
- 238000003754 machining Methods 0.000 claims abstract description 3
- 239000011812 mixed powder Substances 0.000 claims description 32
- 238000000465 moulding Methods 0.000 claims description 31
- 230000006835 compression Effects 0.000 claims description 30
- 238000007906 compression Methods 0.000 claims description 30
- 239000000463 material Substances 0.000 claims description 14
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 9
- 239000007789 gas Substances 0.000 claims description 4
- 238000000227 grinding Methods 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000011261 inert gas Substances 0.000 claims description 4
- 150000004767 nitrides Chemical class 0.000 claims description 4
- DDTIGTPWGISMKL-UHFFFAOYSA-N molybdenum nickel Chemical compound [Ni].[Mo] DDTIGTPWGISMKL-UHFFFAOYSA-N 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims 1
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 abstract description 28
- MTPVUVINMAGMJL-UHFFFAOYSA-N trimethyl(1,1,2,2,2-pentafluoroethyl)silane Chemical compound C[Si](C)(C)C(F)(F)C(F)(F)F MTPVUVINMAGMJL-UHFFFAOYSA-N 0.000 abstract description 18
- 238000003466 welding Methods 0.000 abstract description 14
- 230000008878 coupling Effects 0.000 abstract description 6
- 238000010168 coupling process Methods 0.000 abstract description 6
- 238000005859 coupling reaction Methods 0.000 abstract description 6
- NFFIWVVINABMKP-UHFFFAOYSA-N methylidynetantalum Chemical compound [Ta]#C NFFIWVVINABMKP-UHFFFAOYSA-N 0.000 abstract description 4
- 229910003468 tantalcarbide Inorganic materials 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 7
- 239000010962 carbon steel Substances 0.000 description 7
- 239000010936 titanium Substances 0.000 description 6
- 229910052719 titanium Inorganic materials 0.000 description 6
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 5
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 238000005056 compaction Methods 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 3
- 229910052721 tungsten Inorganic materials 0.000 description 3
- 239000010937 tungsten Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010941 cobalt Substances 0.000 description 2
- 229910017052 cobalt Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- QIJNJJZPYXGIQM-UHFFFAOYSA-N 1lambda4,2lambda4-dimolybdacyclopropa-1,2,3-triene Chemical compound [Mo]=C=[Mo] QIJNJJZPYXGIQM-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910000531 Co alloy Inorganic materials 0.000 description 1
- 229910039444 MoC Inorganic materials 0.000 description 1
- 229910018487 Ni—Cr Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- VNNRSPGTAMTISX-UHFFFAOYSA-N chromium nickel Chemical compound [Cr].[Ni] VNNRSPGTAMTISX-UHFFFAOYSA-N 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- -1 etc. Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- UNASZPQZIFZUSI-UHFFFAOYSA-N methylidyneniobium Chemical compound [Nb]#C UNASZPQZIFZUSI-UHFFFAOYSA-N 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 229910052715 tantalum Inorganic materials 0.000 description 1
- ZVWKZXLXHLZXLS-UHFFFAOYSA-N zirconium nitride Chemical compound [Zr]#N ZVWKZXLXHLZXLS-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
- B23B27/14—Cutting tools of which the bits or tips or cutting inserts are of special material
- B23B27/18—Cutting tools of which the bits or tips or cutting inserts are of special material with cutting bits or tips or cutting inserts rigidly mounted, e.g. by brazing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
- Drilling Tools (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、超硬質合金ドリル並に超硬質合金エンドミル
等の穴加工作業に使用する超硬質合金穴加工用工具およ
びその製造法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tool for drilling holes in a cemented carbide alloy, such as a cemented carbide drill and a cemented carbide end mill, and a method for manufacturing the tool.
本発明の超硬質合金穴加工用工具である超硬質合金ドリ
ルは、超硬質合金粉末の焼結体より成るドリル部と、強
力合金粉末の焼結体より成る中間連結部とが相互の接触
部における超硬質合金粉末と強力合金粉末との接触部に
おける混合粉末の焼結体より成る焼結層をこよって結合
してドリル本体部を構成して、其のドリル本体部を構成
している強力合金粉末焼結中間連結部の端部をこシャン
ク部を溶接してドリル体を構成していることを特徴とす
る超硬質合金穴加工用工具である超硬質合金ドリルであ
る。The cemented carbide drill, which is a tool for drilling a cemented carbide alloy according to the present invention, has a drill part made of a sintered body of cemented carbide powder and an intermediate connecting part made of a sintered body of strong alloy powder at a mutual contact point. A sintered layer made of a sintered body of the mixed powder at the contact area between the ultra-hard alloy powder and the strong alloy powder is bonded together to form the drill body, and the strong This is a super-hard alloy drill which is a tool for drilling holes in a super-hard alloy, characterized in that the drill body is constructed by welding the end of a sintered alloy powder intermediate connecting part to a shank part.
本発明の超硬質合金穴加工用工具である超硬質合金エン
ドミルは、超硬質合金粉末の焼結体より成るエンドミル
部と、強力合金粉末の焼結体より成る中間連結部とが、
相互の接触部における超硬質合金粉末と強力合金粉末と
の接触部における混合粉末の焼結体より成る焼結層によ
って結合してエンドミル本体を構成して、其のエンドミ
ル本体部を構成している強力合金粉末焼結中間連結部の
端部にシャンク部を溶接してエンドミル体を構成してい
ることを特徴とする超硬質合金穴加工用工具である超硬
質合金エンドミルである。The cemented carbide end mill, which is a tool for drilling a cemented carbide alloy according to the present invention, has an end mill portion made of a sintered body of cemented carbide powder, and an intermediate connecting portion made of a sintered body of strong alloy powder.
A sintered layer consisting of a sintered body of the mixed powder forms a bond between the ultra-hard alloy powder and the strong alloy powder at the mutual contact area to form the end mill body, thereby forming the end mill main body. This is a super hard alloy end mill that is a tool for drilling holes in a super hard alloy, and the end mill body is constructed by welding a shank to the end of a strong alloy powder sintered intermediate connection part.
本発明の超硬質合金穴加工用工具である超硬質合金ドリ
ルを製造する方法は、研磨成形作業を加えてドリル本体
部を生成する直前の焼結ドリル本体部の形態を成せる素
材ドリル本体部の外面形態に対応した内面形態を形成し
た一体構造または組立構造の成形型に、ドリル本体部素
材の外径寸法と同じ外径寸法を有するプランジャ２個を
上下より対向させて成形圧縮室を構成するようそこ組合
わせて成形圧縮装置を構成する。The method for manufacturing a super hard alloy drill, which is a tool for drilling a super hard alloy hole according to the present invention, includes a drill body made of a material that can take the form of a sintered drill body immediately before being subjected to polishing and forming operations to produce a drill body. A molding compression chamber is constructed by placing two plungers having the same outer diameter as the outer diameter of the drill body material facing each other from above and below in a mold of integral or assembled structure that has an inner surface shape corresponding to the outer surface shape of the drill. They are combined to form a molding and compression device.
次いで、其の構成した成形圧縮装置における成形圧縮室
内に炭化タングステン粉末等の超硬質炭化物粉末または
窒化チタン等の超硬質窒化物粉末等の超硬質合金粉末と
コバルト粉末またはニッケル粉末等の焼結助材粉末との
混合粉末を充填し、其の充填した混合粉末の上に高速度
鋼粉末等の強力合金粉末を充填して２段に重なった充填
粉末体を形成する。次いで、其の粉末体を充填している
成形圧縮装置における上下対向せる２個のプランジャを
機械プレスの加圧部にて加圧して、其の成形圧縮装置を
こおける成形圧縮室内の充填粉末体にｌ ｔｏｎ ／
ｃｒ／Ｌ乃至ｌ Ｑ ｔｏｎ ／ｃｄの圧力を加えて成
形圧縮体を生成する。次いで、其の生成した成形圧縮体
を真空中または不活性ガス中または還元性ガス中４こて
１，３００℃乃至１，５００℃の温度に加熱して超硬質
合金粉末焼結ドリル部と強力合金粉末焼結中間連結部と
を生成すると同時に、其の超硬質合金粉末焼結ドリル部
と強力合金粉末焼結中間連結部との接触部において相互
の粉末の混合粉末が焼結して焼結層を生成して、其の生
成した焼結層によって超硬質合金粉末焼結ドリル部と強
力合金粉末焼結中間連結部とが一体を成してドリル本体
部を生成する。次いで、生成したドリル本体部を構成し
ている強力合金粉末焼結中間連結部の端部にシャンク部
を溶接してドリル体を構成することを特徴とする超硬質
合金穴加工用工具である超硬質合金ドリルの製造法であ
る。Next, in the forming and compressing chamber of the formed forming and compressing device, ultra-hard carbide powder such as tungsten carbide powder or ultra-hard alloy powder such as ultra-hard nitride powder such as titanium nitride, and sintering aid such as cobalt powder or nickel powder are added. A powder mixture with a material powder is filled, and a strong alloy powder such as a high speed steel powder is filled on top of the filled mixed powder to form a two-tiered packed powder body. Next, the two vertically opposed plungers in the molding and compression device filled with the powder are pressurized by the pressurizing section of the mechanical press, and the filled powder in the molding and compression chamber is pushed through the molding and compression device. ni l ton /
A pressure of cr/L to lQ ton/cd is applied to produce a compacted compact. Next, the resulting compacted compact is heated to a temperature of 1,300°C to 1,500°C with four trowels in a vacuum, an inert gas, or a reducing gas, and is strongly bonded to the cemented carbide powder sintered drill part. At the same time, a mixed powder of mutual powder is sintered at the contact part between the super hard alloy powder sintered drill part and the strong alloy powder sintered intermediate joint part. The produced sintered layer integrates the super hard alloy powder sintered drill part and the strong alloy powder sintered intermediate connection part to form a drill body part. Next, the shank part is welded to the end of the strong alloy powder sintered intermediate connection part which constitutes the generated drill body part to form a drill body, which is a super hard alloy drilling tool. This is a method for manufacturing hard alloy drills.
本発明の超硬質合金穴加工用工具である超硬質合金エン
ドミルを製造する方法は、研磨作業を加えてエンドミル
本体部を生成する直前の焼結エンドミル本体部の形態を
成せる素材エンドミル本体部の外面形態に対応する内面
形態を形成した一体構造または組立構造の成形型に、素
材エンドミル本体部の外径寸法と同じ外径寸法を有する
プランジャ２個を上下より対向させて成形圧縮室を構成
するように組合わせて成形圧縮装置を構成する。次いで
、其の構成した成形圧縮装置における成形圧縮室内に、
炭化タングステン粉末等の超硬質炭化物粉末または窒化
チタン等の超硬質窒化物粉末とコバルト粉末またはニッ
ケル粉末等の焼結助材粉末との混合粉末を充填し、其の
充填した混合粉末の上に高速度鋼粉末等の強力合金粉末
を充填して２段に重なった充填粉末を形成する。次いで
、其の粉末体を充填している成形圧縮装置における上下
対向する２個のプランジャを機械プレスの加圧部にて加
圧して、其の成形圧縮装置における成形圧縮室内の充填
粉末体に１ｔｏｎ／ｃｆｆｌ乃至１０ｔＯｎ／ｃ＋４の
圧力を加えて成形圧縮体を生成する。次いで其の生成し
た成形圧縮体を真空中または不活性ガス中または還元性
ガス中にて１，３００℃乃至１．５００℃の温度にて加
熱して超硬質合金粉末焼結エンドミル部と強力合金粉末
焼結中間連結部とを生成すると同時に、其の超硬質合金
粉末焼結エンドミル部と強力合金粉末焼結中間連結部と
の接触部において相互の粉末の混合粉末が焼結して焼結
層を生成して、其の生成した焼結層によつ【超硬質合金
粉末焼結エンドミル部と強力合金粉末焼結中間連結部と
が一体を成してエンドミル本体を生成する。次いで、生
成したエンドミル本体部を構成している強力合金粉末焼
結中間連結部の端部にシャンク部を溶接してエンドミル
体を構成することを特徴とする超硬質合金穴加工用工具
である超硬質合金エンドミルの製造法である。The method for manufacturing a cemented carbide end mill, which is a tool for drilling a cemented carbide alloy hole according to the present invention, uses a material end mill body that can form a sintered end mill body immediately before being subjected to a polishing operation to produce an end mill body. A molding compression chamber is formed by placing two plungers having the same outer diameter as the outer diameter of the material end mill main body from above and below in a mold having an integral or assembled structure in which an inner surface shape corresponds to the outer surface shape. A molding and compression device is constructed by combining them in this way. Next, in the molding compression chamber of the constructed molding and compression device,
A mixed powder of ultra-hard carbide powder such as tungsten carbide powder or ultra-hard nitride powder such as titanium nitride powder and sintering aid powder such as cobalt powder or nickel powder is filled, and a high-temperature powder is placed on top of the filled mixed powder. A strong alloy powder such as speed steel powder is filled to form two layers of packed powder. Next, the two vertically opposed plungers in the molding and compression device filled with the powder are pressurized by the pressurizing section of the mechanical press, and 1 ton is applied to the filled powder in the molding and compression chamber of the molding and compression device. A pressure of /cffl to 10 tOn/c+4 is applied to produce a compacted compact. Next, the resulting compacted compact is heated at a temperature of 1,300°C to 1,500°C in a vacuum, inert gas, or reducing gas to form a cemented carbide powder sintered end mill part and a strong alloy. At the same time, a mixed powder of mutual powder is sintered at the contact area between the super hard alloy powder sintered end mill part and the strong alloy powder sintered intermediate joint part to form a sintered layer. By the generated sintered layer, the super hard alloy powder sintered end mill part and the strong alloy powder sintered intermediate connection part are integrated to form an end mill body. Next, a shank part is welded to the end of the strong alloy powder sintered intermediate connection part constituting the produced end mill body part to form an end mill body. This is a method for manufacturing hard alloy end mills.
以上に説明した超硬質合金穴加工用工具を製造する（３
当って、超硬質合金粉末焼結ドリル部または超硬質合金
粉末焼結エンドミル部を焼結製造する場合に使用する超
硬質合金粉末には、炭化タングステン粉末、炭化モリブ
デン粉末、炭化チタン粉末、炭化タンタル粉末、炭化ニ
オブ粉末、窒化チタン粉末、窒化ジルコニウム粉末、硼
化チタン粉末等の合金粉末を使用し、焼結助材粉末には
、コバルト粉末、ニッケル粉末、ニッケルーモリブデン
混合粉末等の金属粉末を使用するものである。Manufacture the cemented carbide alloy hole drilling tool explained above (3
The cemented carbide powder used to sinter and manufacture the superhard alloy powder sintered drill part or the superhard alloy powder sintered end mill part includes tungsten carbide powder, molybdenum carbide powder, titanium carbide powder, and tantalum carbide powder. powder, alloy powder such as niobium carbide powder, titanium nitride powder, zirconium nitride powder, titanium boride powder, etc., and metal powder such as cobalt powder, nickel powder, nickel-molybdenum mixed powder, etc. as the sintering aid powder. It is what you use.
超硬質合金穴加工用工具を構成する超硬質合金粉末焼結
トリ部または超硬質合金粉末焼結エンドミル部の端部に
焼結して連結している強力合金粉末焼結中間連結部を焼
結製造するに際して使用する強力合金粉末には、高速度
鋼粉末、クロム鋼粉末、ニッケルークロム鋼粉末、炭素
工具銅粉末等の合金粉末を使用するものである。Sintering of the strong alloy powder sintered intermediate connection part that is sintered and connected to the end of the cemented carbide powder sintered tri part or the superhard alloy powder sintered end mill part that constitutes the cemented carbide hole machining tool. The strong alloy powder used in manufacturing includes alloy powders such as high speed steel powder, chromium steel powder, nickel-chromium steel powder, and carbon tool copper powder.
超硬質合金粉末焼結ドリル部と強力合金粉末焼結中間連
結部とが一体を成して焼結して生成したドリル本体部に
おける強力合金粉末焼結中間連結部の端部、または、超
硬質合金粉末焼結エンドミル部と強力合金粉末焼結中間
連結部とが一体を成して焼結して生成・したエンドミル
本体部をこおける強力合金粉末焼結中間連結部の端部に
溶接するシャンク部は、炭素鋼棒材を使用するものであ
る。The end of the strong alloy powder sintered intermediate coupling part in the drill body produced by integrally sintering the superhard alloy powder sintered drill part and the strong alloy powder sintered intermediate coupling part, or the superhard alloy powder sintered intermediate coupling part. A shank that is welded to the end of the strong alloy powder sintered intermediate connection part where the end mill main body is produced by integrally sintering the alloy powder sintered end mill part and the strong alloy powder sintered intermediate connection part. The section uses carbon steel bars.
以上に説明したように、本発明の超硬質合金ドリルは、
超硬質合金粉末焼結ドリル部と強力合金粉末焼結中間連
結部とが其の焼結作用を行う前の超硬質合金粉末と強力
合金粉末とが接触していた状態にて一体に焼結して、焼
結結合を成してドリル本体部を構成したものであって、
斯様をニ一体をこ焼結結合をしている強力合金粉末焼結
中間連結部の端部にシャンク部を溶接して構成した超硬
質合金ドリルであるから、斯様に構成されている超硬質
合金ドリルをもって穴加工作業を行う場合に、重作業に
おいて高い捩り応力に対しても強い抵抗力をもって作業
を行い得るものである。超硬質合金エンドミルにおいて
も、超硬質合金粉末焼結エンドミル部と強力合金粉末焼
結中間連結部とが一体に粉末焼結によって結合し、てエ
ンドミル本体部を構成して、其のエンドミル本体部にお
ける強力合金粉末焼結中間連結部の端部にシャンク部を
溶接して構成した超硬質合金エンドミルであるから、斯
様に構成されている超硬質合金エンドミルをもって穴加
工作業を行う場合に高い捩り応力に対して強い抵抗力を
実現するエンドミルである。従って、本発明の超硬質合
金穴加工用工具である超硬質合金ドリルおよび超硬質合
金エンドミルは、穴加工における重作業に適した超硬質
合金穴加工用工具として有効に使用し得るものである。As explained above, the cemented carbide drill of the present invention is
The super hard alloy powder sintered drill part and the strong alloy powder sintered intermediate connection part are sintered together in a state where the super hard alloy powder and the strong alloy powder are in contact with each other before performing their sintering action. The drill body is constructed by forming a sintered bond with the drill body,
This is a super hard alloy drill constructed by welding the shank part to the end of the strong alloy powder sintered intermediate connection part, which is sintered in two pieces. When performing hole drilling work with a hard alloy drill, the work can be performed with strong resistance against high torsional stress during heavy work. In the case of a cemented carbide end mill, the cemented carbide powder sintered end mill part and the strong alloy powder sintered intermediate connecting part are integrally bonded together by powder sintering to form the end mill body part, and the Since this is a super hard alloy end mill with a shank welded to the end of a strong alloy powder sintered intermediate connection part, high torsional stress is generated when performing hole drilling work with a super hard alloy end mill constructed in this way. This is an end mill that achieves strong resistance against. Therefore, the cemented carbide drill and the cemented carbide end mill, which are the tools for drilling holes in a cemented carbide of the present invention, can be effectively used as tools for drilling holes in a cemented carbide suitable for heavy work in hole drilling.
次に、実施例により本発明の方法によって超硬質合金ド
リルおよび超硬質合金エンドミルを製造する作業と製造
して得られた本発明の超硬質合金ドリルおよび超硬質合
金エンドミルについて説明する。Next, the work of manufacturing a cemented carbide drill and a cemented carbide end mill by the method of the present invention and the produced cemented carbide drill and cemented carbide end mill of the present invention will be described using Examples.
実施例 １
直径１２ミリの完成ドリル本体部を生成する（３当って
行う成形作業において除去される「研削しろ」が除かれ
る直前の１３ミリの直径を有するドリル本体部素材の外
面形態に対応する内面形態を形成゛した成形型と、其の
ドリル本体部素材の外径と同じ外径を有するプランジャ
２個とを準備した。次いで、成形型の内部下方をこ１個
のプランジャを装入し、該プランジャの上面の成形型内
に炭化タングステン粉末が８８重量％ 、！： ：Ｉ
ハルト粉末が１２重量％との割合の混合粉末を２６ミリ
の深さに充填し、次いで、其の充填した混合粉末の上を
こ高速度鋼粉末を２０ミリの深さに充填し、次いで、高
速度鋼粉末の上に他の１個のプランジャを装入して、成
形型の内側に上下各１個のプランジャを対向させて形成
した成形圧縮室内昏こ、炭化タングステン粉末とコバル
ト粉末との混合粉末の上【こ高速度銅粉末を２段に重ね
て成る焼結用粉末充填成形圧縮装置を構成した。次いで
、其の装置を機械プレスの加圧部に装置して上下のプラ
ンジャに７ ｔｏｎ／ｄの圧力を加えて成形圧縮室内の
充填粉末の成形圧縮体を形成した。次いで、成形圧縮室
内より取り出した成形圧縮体を真空加熱炉の中に装入し
て１，４００℃に加熱して焼結作業を行った。得られた
焼結体は、炭化タングステン−コバルト合金粉末焼結ド
リル部と、高速度鋼粉末焼結中間連結部とがこれら焼結
ドリル部と焼結中間連結部との接触部における粉末焼結
結合層により棒状Ｇこ結合してドリル本体部を構成した
焼結体であった。次いで、得られたドリル本体部におけ
る高速度鋼粉末焼結中間連結部の端部に炭素鋼より成る
シャンク部の端部をフラッシュバット法（二よって溶接
し文ドリル構成体を生成した。其の生成したドリル構成
体を研磨し刃先を成形して超硬質合金ドリルである炭化
タングステン合金ドリルを製造した。以上の作業によっ
て製造した炭化タングステン焼結合金ドリルは、炭化タ
ングステン焼結合金より成る丸材部を備えて、其の炭化
タングステン焼結合金ドリル部に粉末焼結結合層によっ
て強力に結合している高速度鋼粉末焼結中間連結部の端
部に結合したシャンク部は、フラッシュバット溶接法に
よって結合したものであるから、穴加工作業を行う場合
昏こ、重作業における高い捩り応力に対しても強い抵抗
力をもつ作業を行うことができた。Example 1 A completed drill body with a diameter of 12 mm is produced (corresponding to the external form of the drill body material with a diameter of 13 mm immediately before the "grinding allowance" removed in the forming operation performed by 3 hits) A mold with an inner surface formed thereon and two plungers having the same outer diameter as the drill body material were prepared.Next, these plungers were inserted into the lower part of the inside of the mold. , 88% by weight of tungsten carbide powder in the mold on the upper surface of the plunger, !: :I
A mixed powder containing 12% by weight of Hult powder was filled to a depth of 26 mm, then high speed steel powder was filled to a depth of 20 mm over the filled mixed powder, and then, Another plunger was placed on top of the high-speed steel powder, and the upper and lower plungers were placed inside the mold to form a compression chamber, in which tungsten carbide powder and cobalt powder A powder filling compaction device for sintering was constructed by stacking high-speed copper powder on top of the mixed powder in two stages. Next, the device was installed in the pressurizing section of a mechanical press, and a pressure of 7 ton/d was applied to the upper and lower plungers to form a molded compressed body of the filled powder in the molded compression chamber. Next, the molded compressed body taken out from the molding compression chamber was charged into a vacuum heating furnace and heated to 1,400° C. to perform a sintering operation. The obtained sintered body has a tungsten carbide-cobalt alloy powder sintered drill part and a high speed steel powder sintered intermediate joint part, which are powder sintered at the contact area between the sintered drill part and the sintered intermediate joint part. The drill body was a sintered body formed by rod-shaped G-bonding through a bonding layer. Next, the end of the shank made of carbon steel was welded to the end of the high-speed steel powder sintered intermediate connection part in the obtained drill body using a flash butt method (2) to produce a drill structure. A tungsten carbide alloy drill, which is a super hard alloy drill, was manufactured by polishing the generated drill structure and shaping the cutting edge.The tungsten carbide sintered alloy drill manufactured by the above operations had a round part made of tungsten carbide sintered alloy. The shank part is bonded to the end of the high-speed steel powder sintered intermediate connection part, which is strongly bonded to the tungsten carbide sintered alloy drill part by a powder sintered bonding layer, and the shank part is bonded to the end of the high speed steel powder sintered intermediate connection part by flash butt welding method. Because it is bonded, it is possible to perform work with strong resistance against high torsional stress during hole drilling work and heavy work.
実施例 ２
本実施例はドリル本体部の直径が１２ミリである超硬質
合金ドリルを製造する作業の１例である。作業において
使用する成形型とプランジャとは実施例１の場合に用い
たものを使用した。Example 2 This example is an example of work for manufacturing a cemented carbide drill whose drill body has a diameter of 12 mm. The mold and plunger used in the work were the same as those used in Example 1.
作業を始めるに当り、先づ、成形型の下方内部に１個の
プランジャを装入し、該プランジャの上面の成形型の内
部に、炭化タングステン粉末が７６重量％と炭化チタン
粉末が７重量％と炭化タンタル粉末が７重量％とコバル
ト粉末が１０重量％との割合の混合粉末を３６ミリの深
さくこ充填し、其の混合粉末の上に高速度鋼粉末を２０
ミリの深さに充填し、次いで、其の充填した高速度鋼粉
末の上に他の１個のプランジャを装入して、成形型の内
側に２個のプランジャを対向させて形成した成形圧縮室
内に炭化タングステン粉末と炭化チタン粉末と炭化タン
タル粉末とコバルト粉末との混合粉末の上に高速度鋼粉
末を２段に重ねた焼結用粉末充填成形圧縮装置を構成し
た。この構成した装置を用いて、其の装置内をこ充填し
た焼結用粉末を焼結する作業は、実施例１の場合と同じ
方法により、焼結温度には１，５００℃の温度を用いて
行った。得られた焼結体は、炭化タングステン−炭化チ
タン−炭化タンタル−コバルト焼結合金ドリル部と、高
速度鋼粉末焼結中間連結部とがこれら焼結ドリル部と焼
結中間連結部との接触部における粉末焼結結合層により
棒状に結合したドリル本体部を構成した焼結体であった
。次いで、得られた焼結体であるドリル本体部における
高速度鋼粉末焼結中間連結部の端部をこ炭素鋼より成る
シャンク部の端部をフラッシュバット溶接法によって溶
接してドリル構成体を生成した。其の生成したドリル構
成体を研削成形して超硬質合金ドリルである炭化タング
ステン系焼結合金ドリルを製造した。以上の作業によっ
て製造した炭化タングステン系焼結合金ドリルは、炭化
タングステン系焼結合金よ、り成る刃材部を備えて、其
の炭化タングステン系焼結合金ドリル部に粉末焼結結合
層によって強力に結合している高速度鋼粉末焼結中間連
結部の端部に結合したシャンク部は、フラッシュバット
法によって溶接して結合したものであるから、穴加工作
業を行う場合に、重作業における高い捩り応力に対して
も強い抵抗力をもって作業を行うことができるものであ
った。To start the work, first, one plunger is inserted into the lower part of the mold, and 76% by weight of tungsten carbide powder and 7% by weight of titanium carbide powder are placed inside the mold on the upper surface of the plunger. A mixed powder containing 7% by weight of tantalum carbide powder and 10% by weight of cobalt powder was packed in a hole to a depth of 36 mm, and 20% of high-speed steel powder was placed on top of the mixed powder.
Molding compression formed by filling the powder to a depth of millimeters, then inserting another plunger on top of the filled high-speed steel powder, and placing two plungers facing each other inside the mold. A powder-filling, compacting and sintering apparatus was constructed in which two layers of high-speed steel powder were stacked on top of a mixed powder of tungsten carbide powder, titanium carbide powder, tantalum carbide powder, and cobalt powder in a room. Using this configured device, the sintering powder filled in the device was sintered using the same method as in Example 1, using a sintering temperature of 1,500°C. I went. The obtained sintered body has a tungsten carbide-titanium carbide-tantalum carbide-cobalt sintered alloy drill part and a high-speed steel powder sintered intermediate connecting part in contact with the sintered drill part and the sintered intermediate connecting part. It was a sintered body with a rod-shaped drill body connected by a powder sintered bonding layer at the bottom. Next, the end of the high-speed steel powder sintered intermediate connection part in the drill body, which is the obtained sintered body, is welded to the end of the shank part made of carbon steel by a flash butt welding method to form a drill structure. generated. The resulting drill structure was ground and formed to produce a tungsten carbide-based sintered alloy drill, which is a super hard alloy drill. The tungsten carbide sintered alloy drill manufactured by the above process has a blade part made of tungsten carbide sintered alloy, and the tungsten carbide sintered alloy drill part has a strong powder sintered bond layer. The shank part connected to the end of the high speed steel powder sintered intermediate connection part is welded and connected by the flash butt method, so when performing hole drilling work, the high speed It was possible to perform work with strong resistance against torsional stress.
実施例 ３
本実施例はドリル本体部の直径が１２ミリである超硬質
合金ドリルを製造する作業の１例である。作業において
使用する成形型とプランジャとは実施例１の場合に用い
たものを使用した。Example 3 This example is an example of manufacturing a cemented carbide drill whose drill body has a diameter of 12 mm. The mold and plunger used in the work were the same as those used in Example 1.
作業を始めるに当り、先づ、成形型の下方内部に１個の
プランジャを装入し、其の装入したプランジャの上面の
成形型内に、炭化タングステン粉末が８０重量％と炭化
チタン粉末が５重量％と窒化チタン粉末が５重量％とコ
バルト粉末が１０重量％との割合の混合粉末を３０ミリ
の深さに充填し、其の充填した混合粉末の上に高速度鋼
粉末を２０ミリの深さにて充填し、次いで、其の充填し
た高速度鋼粉末の上に他の１個のプランジャを装入して
、成形型の内側に２個のプランジャを対向させて形成し
た成形圧縮室の内部に充填した炭化タングステン粉末と
炭化チタン粉末と窒化チタン粉末とコバルト粉末との混
合粉末の上に高速度鋼粉末を２段に重ねた焼結用粉末充
填成形圧縮装置を構成した。この構成した装置を用いて
、其の装置内に充填した焼結用粉末を焼結する作業は、
実施例１の場合と同じ方法をこより、焼結用温度には１
，５００℃の温度を用いて行った。得られた焼結体は、
炭化タングステン−炭化チタン−窒化チタンーコバルト
焼結合金ドリル部と、高速度鋼粉末焼結中間連結部とが
これら焼結ドリル部と焼結中間連結部との接触部におけ
る粉末焼結結合層により棒状に結合したドリル本体部を
構成した焼結体であった。次いで、得られた焼結体であ
るドリル本体部における高速度鋼粉末焼結中間連結部の
端部をこ炭素鋼より成る、シャンク部の端部をフラッシ
ュバット溶接法をこよって溶接してドリル構成体を生成
した。其の生成したドリル構成体を研磨成形して超硬質
合金ドリルである炭化タングステン系焼結合金ドリルを
製造した。以上の作業をこまって製造した炭化タングス
テン系焼結合金ドリルは、炭化タングステン系焼結合金
より成る刃材部を備えていて、其の炭化タングステン系
焼結合金ドリル部に、粉末焼結結合層によって強力をこ
結合している高速度鋼粉末焼結中間連結部の端部Ｇこ結
合しているシャンク部は、フラッシュバット法によって
溶接して結合したものであるから、穴加工作業を行う場
合をこ重作業４こおける高い捩り応力を二対しても強い
抵抗力をもって作業を行うことができるものであった。To start the work, first, one plunger is inserted into the lower part of the mold, and 80% by weight of tungsten carbide powder and 80% by weight of titanium carbide powder are placed in the mold on the upper surface of the inserted plunger. A mixed powder of 5% by weight, 5% by weight of titanium nitride powder, and 10% by weight of cobalt powder was filled to a depth of 30 mm, and high speed steel powder was poured 20 mm on top of the filled mixed powder. The molding compaction was formed by placing two plungers facing each other inside the mold by filling the powder to a depth of A powder filling compaction device for sintering was constructed in which high-speed steel powder was stacked in two layers on top of a mixed powder of tungsten carbide powder, titanium carbide powder, titanium nitride powder, and cobalt powder filled inside a chamber. The work of sintering the sintering powder filled in the device using this configured device is as follows:
Using the same method as in Example 1, the sintering temperature was 1
, 500°C. The obtained sintered body is
The tungsten carbide-titanium carbide-titanium nitride-cobalt sintered alloy drill part and the high-speed steel powder sintered intermediate connection part are bonded by a powder sintered bonding layer at the contact area between the sintered drill part and the sintered intermediate connection part. It was a sintered body that formed a drill body that was connected in a rod shape. Next, the end of the high-speed steel powder sintered intermediate connection part in the drill body, which is the obtained sintered body, is welded to the end of the shank part made of carbon steel using a flash butt welding method to complete the drill. generated the construct. The resulting drill structure was polished and formed to produce a tungsten carbide-based sintered alloy drill, which is a super hard alloy drill. The tungsten carbide sintered alloy drill manufactured through the above process has a blade part made of tungsten carbide sintered alloy, and the tungsten carbide sintered alloy drill part is coated with a powder sintered bond layer. The end of the high-speed steel powder sintered intermediate connection part, which is strongly joined by G, is joined by welding by the flash butt method, so when performing hole drilling work. It was able to perform heavy work with strong resistance even when subjected to high torsional stress.
実施例４
本実施例はドリル本体部の直径が１２ミリである超硬質
合金ドｌ） ）しを製造する作業の１例である。作業に
おいて使用する成形型とプランジャとは実施例１の場合
）こ用いたものを使用した。Example 4 This example is an example of the work of manufacturing a cemented carbide alloy drill whose drill body has a diameter of 12 mm. The mold and plunger used in the work were the same as those used in Example 1.
次いで、作業を始めるに当り、先づ、成形型の内部下方
に１個のプランジャを装入し、其の装入したプランジャ
の上面の成形型内に、炭化チタン粉末が７５重量％とニ
ッケル粉末が１５重量％とモリブデン粉末が１０重量％
との割合の混合粉末を３０ミリの深さに充填し、其の充
填した混合粉末の上に高速度鋼粉末を２０ミリの深さに
て充填し、次いで、其の充填した高速度鋼粉末の上に他
の１個のプランジャを装入して成形型の内側に２個のプ
ランジャを対向させて形成した成形圧縮室の内部に充填
した炭化チタン粉末とニッケル粉末とモリブデン粉末と
の混合粉末の上をこ、高速度鋼粉末を２段に重ねた焼結
用粉末充填成形圧縮装置を構成した。この構成した装置
を用いて、其の装置内に充填している焼結用粉末を焼結
する作業は、実施例１の場合と回し方法により、焼結用
温度には１，４５０℃の温度を用いて行った。得られた
焼結体は、炭化チタン−ニッケルーモリブデン焼結合金
ドリル部と、高速度鋼粉末焼結中間連結部とがこれら焼
結ドリル部と焼結中間連結部との接触部をこおける粉末
焼結結合層により棒状裔こ結合したド１３ ）し本体部
を構成した焼結体であった。次いで、得られた焼結体で
あるドリル本体部における高速度鋼粉末焼結中間連結部
の端部に炭素鋼より成るシャンク部の端部をフラッシュ
バット溶接法によって溶接してドリル構成体を生成した
。其の生成したドリル構成体を研磨成形して超硬質合金
ドリルである炭化チタン系焼結合金ドリルを製造した。Next, before starting work, first insert one plunger into the lower part of the inside of the mold, and fill the mold with 75% by weight of titanium carbide powder and nickel powder on the upper surface of the inserted plunger. is 15% by weight and molybdenum powder is 10% by weight.
A mixed powder with a proportion of A mixed powder of titanium carbide powder, nickel powder, and molybdenum powder is filled into a molding compression chamber formed by inserting another plunger on top of the mold and making the two plungers face each other inside the mold. A sintering powder filling molding and compression apparatus was constructed by stacking high-speed steel powder in two stages on top of the sintering powder. Using this configured device, the sintering powder filled in the device was sintered using the same method as in Example 1, with a sintering temperature of 1,450°C. This was done using In the obtained sintered body, the titanium carbide-nickel-molybdenum sintered alloy drill part and the high-speed steel powder sintered intermediate connecting part pass through the contact area between the sintered drill part and the sintered intermediate connecting part. It was a sintered body in which the main body was formed by bonding rod-shaped protrusions using a powder sintered bonding layer. Next, the end of the shank made of carbon steel is welded to the end of the high-speed steel powder sintered intermediate connection part in the drill body, which is the obtained sintered body, by flash butt welding to produce a drill structure. did. The resulting drill structure was polished and formed to produce a titanium carbide-based sintered alloy drill, which is a super hard alloy drill.
以上の作業によって製造した炭化チタン系焼結合金ドリ
ルは、炭化チタン系焼結合金より成る刃材部を備えてい
て、其の炭化チタン系焼結合金ドリル部に粉末焼結結合
層によって強力に結合している高速度鋼粉末焼結中間連
結部の端部に結合しているシャンク部は、フラッシュバ
ット溶接法にまって溶接して結合したものであるから、
穴加工作業を行う場合に、重作業における高い捩り応力
に対して強い抵抗力を有し重作業を行うことができるも
のであった。The titanium carbide-based sintered alloy drill manufactured by the above process has a blade part made of titanium carbide-based sintered alloy, and the titanium carbide-based sintered alloy drill part is made strong by a powder sintered bonding layer. The shank part that is joined to the end of the joined high-speed steel powder sintered intermediate joint part is welded and joined using the flash butt welding method.
When performing hole drilling work, it has a strong resistance to high torsional stress during heavy work, and can be used for heavy work.
実施例 ５
直径１２ミリの完成エンドミル本体部を生成するに当っ
て行う成形作業において除去される「研削しろ」が除去
される直前の１３ミリの直径を有するエンドミル本体部
素材外面形体に対応した内面形態を有する成形型とエン
ドミル本体部素材の外径と同じ外径を有するプランジャ
２個とを準備した。次いで、成形型の内部下方に１個の
プランジャを装入し、其の装入したプランジャの上面の
成形型内に炭化タングステン粉末が８８重量％とコバル
ト粉末が１２重量％との混合粉末を３６ミリの深さに充
填し、其の充填した混合粉末の上に高速度鋼粉末を２０
ミリの深さくこ充填し、該高速度鋼粉末の上に他の１個
のプランジャを装入して、成形型の内側に２個のプラン
ジャを上下より対向させて形成した成形圧縮室の内部昏
こ炭化タングステン粉末とコバルト粉末との混合粉末の
上に高速度鋼粉末を２段に重ねた焼結用粉末充填成形圧
縮装置を構成した。次いで、其の成形圧縮装置を機械プ
レスの加圧部に装置して其の上下の２個のプランジャに
７ｔｏｎ／ｃｄの圧力を加えて成形圧縮室内の充填粉末
の成形圧縮体を形成した。次いで成形圧縮室内より取り
出した成形圧縮体を真空加熱炉の中に装入して１，４０
０℃に加熱して焼結作業を行った。得られた焼結体は、
炭化タングステン系合金粉末焼結エンドミル部と高速度
鋼粉末焼結中間連結部とが、これら焼結エンドミル部と
焼結中間連結部との接触部台こおける粉末焼結結合層に
より棒状をこ結合してエンドミル本体部を構成した焼結
体であった。次いで、得られた焼結体であるエンドミル
本体部における高速度鋼粉末焼結中間連結部の端部をこ
炭素鋼より成るシャンク部の端部をフラッシュバット溶
接法Ｇこよって溶接してエンドミル構成体を生成した。Example 5 Inner surface corresponding to the outer surface shape of the end mill body material having a diameter of 13 mm immediately before the "grinding allowance" removed during the forming operation to produce the finished end mill body having a diameter of 12 mm A mold having the same shape and two plungers having the same outer diameter as the end mill main body material were prepared. Next, one plunger was inserted into the lower part of the inside of the mold, and 36% of a mixed powder of 88% by weight of tungsten carbide powder and 12% by weight of cobalt powder was placed in the mold on the upper surface of the inserted plunger. Fill the powder mixture to a depth of 2 mm, and add 20 mm of high-speed steel powder on top of the filled mixed powder.
The inside of the molding compression chamber is formed by filling the powder into a millimeter deep, placing another plunger on top of the high-speed steel powder, and forming two plungers facing each other from above and below inside the mold. A powder filling molding and compacting device for sintering was constructed in which high speed steel powder was layered in two stages on a mixed powder of tungsten carbide powder and cobalt powder. Next, the molding and compression device was installed in the pressurizing section of a mechanical press, and a pressure of 7 ton/cd was applied to the two upper and lower plungers to form a molded and compressed body of the filled powder in the molding and compression chamber. Next, the molded compressed body taken out from the molding compression chamber was charged into a vacuum heating furnace and heated to 1,40 ml.
Sintering work was performed by heating to 0°C. The obtained sintered body is
The tungsten carbide alloy powder sintered end mill part and the high-speed steel powder sintered intermediate joint part are joined together in a rod shape by the powder sintered joint layer in the contact area between the sintered end mill part and the sintered intermediate joint part. It was a sintered body that constituted the end mill main body. Next, the end of the high-speed steel powder sintered intermediate connection part in the end mill main body, which is the obtained sintered body, is welded to the end of the shank part made of carbon steel using the flash butt welding method G to complete the end mill configuration. generated a body.
其の生成したエンドミル構成体を研磨成形して超硬質合
金エンドミルである炭化タングステン系合金エンドミル
を製造した。以上の作業をこよって製造した炭化タング
ステン系焼結合金より成る刃材を備え、其の炭化タング
ステン系焼結合金エンドミル部に、粉末焼結結合層によ
って強力に結合している高速度鋼粉末焼結中間連結部の
端部に、結合したシャンク部はフラッシュバット溶接法
によって結合したものであるから、穴加工作業を行う場
合に、重作業における高い捩り応力に対しても強い抵抗
力をもって作業を行うことができるのであったＯ実施例
６
本実施例はエンドミル本体部の直径が１２ミリである超
硬質合金エンドミルを製造する作業の１例である。作業
において使用する成形型とプランジャとは実施例１の場
合をこ用いたものを使用した。作業を始めるに当り、先
づ、成形型の下方内部に１個のプランジャを装入し、該
プランジャの上面の成形型内に炭化チタン粉末が７５重
量％とニッケル粉末が１５重量％とモリブデン粉末が１
０重量％との混合粉末を３６ミリの深さくこ充填し、其
の充填した混合粉末の上に高速度鋼粉末を２０ミリの深
さをこ充填し、其の充填した高速度鋼粉末の上に他の１
個のプランジャを装入して成形型の内側をこ２個のプラ
ンジャを対向させて形成した成形圧縮室の内部に炭化チ
タン粉末とニッケル粉末とモリブデン粉末との混合粉末
の上に高速度鋼粉末を２段（二重ねた焼結用粉末充填成
形圧縮装置を構成した０この構成した装置を用いて、其
の装置内に充填している焼結用粉末を焼結する作業は、
実施例５の場合と同じ方法をこより、焼結用温度には、
１．４５０℃の温度を用いて行った。得られた焼結体は
、炭化チタンー二ッグルーモリブデン焼結合金エンドミ
ル部と、高速度鋼粉末焼結中間連結部とがこれら焼結エ
ンドミル部と焼結中間連結部との接触部台こおける粉末
焼結結合層をこより棒状に結合したエンドミル本体部を
構成した焼結体であった。次いで、得られた焼結体であ
るエンドミル本体部における高速度鋼粉末焼結中間連結
部の端部に炭素鋼より成るシャンク部の端部をフラッシ
ュバット溶接法をこよって溶接してエンドミル構成体を
生成した。其の生成したエンドミル構成体を研磨成形し
て超硬質合金エンドミルである炭化チタン系焼結合金エ
ンドミルを製造した。以上の作業によって製造した炭化
チタン系焼結合金エンドミルは、炭化チタン系焼結合金
より成る刃材部を備えていて、其の炭化チタン系焼結合
金エンドミル部に、粉末焼結結合層によって強力に結合
している高速度鋼粉末焼結中間連結部の端部瘉こ結合し
ているシャンク部は、フラッシュバット溶接法によって
溶接して結合したものであるから、穴加工作業を行う場
合に、重作業における高い捩り応力に対しても強い抵抗
力をもって作業を行うことができるものであった。The resulting end mill structure was polished and formed to produce a tungsten carbide alloy end mill, which is a super hard alloy end mill. The blade material is made of the tungsten carbide sintered alloy produced through the above operations, and the high speed steel powder sintered material is strongly bonded to the tungsten carbide sintered alloy end mill part by a powder sintered bonding layer. The shank part connected to the end of the intermediate connection part is joined by flash butt welding, so when drilling holes, it has strong resistance to high torsional stress during heavy work. Embodiment 6 This embodiment is an example of manufacturing a super hard alloy end mill whose end mill body has a diameter of 12 mm. The mold and plunger used in the work were the same as those used in Example 1. To start the work, first, one plunger is inserted into the lower part of the mold, and 75% by weight of titanium carbide powder, 15% by weight of nickel powder, and molybdenum powder are placed in the mold on the upper surface of the plunger. is 1
A mixed powder of 0% by weight was filled to a depth of 36 mm, and a high speed steel powder was filled to a depth of 20 mm on top of the filled mixed powder. the other one on top
High-speed steel powder is placed on top of a mixed powder of titanium carbide powder, nickel powder, and molybdenum powder inside a molding compression chamber formed by charging two plungers and facing each other. The work of sintering the sintering powder filled in the device using this configured device is as follows:
Using the same method as in Example 5, the sintering temperature was as follows:
A temperature of 1.450°C was used. The obtained sintered body has a titanium carbide-two-glue molybdenum sintered alloy end mill part and a high-speed steel powder sintered intermediate joint part, and the contact part between the sintered end mill part and the sintered intermediate joint part is heated. It was a sintered body that constituted an end mill main body portion in which a powder sintered bonding layer was bonded into a twisted rod shape. Next, the end of the shank made of carbon steel is welded to the end of the high-speed steel powder sintered intermediate connection part in the end mill main body, which is the obtained sintered body, by flash butt welding to obtain an end mill structure. was generated. The resulting end mill structure was polished and formed to produce a titanium carbide-based sintered alloy end mill, which is a super hard alloy end mill. The titanium carbide-based sintered alloy end mill manufactured by the above process is equipped with a blade part made of titanium carbide-based sintered alloy, and the titanium carbide-based sintered alloy end mill part has a strong powder sintered bonding layer. The end of the high-speed steel powder sintered intermediate connection connected to the shank is welded and connected using flash butt welding, so when drilling holes, It was able to perform heavy work with strong resistance to high torsional stress.
Claims (4)
中間連結部とが粉末焼結してドリル本体部を構成してい
て、其のドリル本体部の強力合金粉末焼結中間連結部に
シャンク部が溶接されている超硬質合金穴加工用工具で
ある超硬質合金ドリル。(1) A super hard alloy powder sintered drill part and a strong alloy powder sintered intermediate connection part are powder sintered to constitute a drill body part, and the strong alloy powder sintered intermediate connection part of the drill body part is powder-sintered. A carbide drill that is a tool for drilling carbide alloy holes with a welded shank.
焼結中間連結部とが粉末焼結してエンドミル本体部を構
成していて、其のエンドミル本体部の強力合金粉末焼結
中間連結部にシャンク部が溶接されている超硬質合金穴
加工用工具である超硬゛質合金エンドミル。(2) A super hard alloy powder sintered end mill part and a strong alloy powder sintered intermediate connection part are powder sintered to constitute an end mill main body part, and the strong alloy powder sintered intermediate connection part of the end mill main body part is powder-sintered. A cemented carbide end mill is a tool for drilling carbide alloy holes with a welded shank.
業により除かれる「研削しろ」が除かれる直前の形態を
成せるドリル本体部素材の外面形態に対応した内面形態
を形成した一体構造または組立構造の成形型に、ドリル
本体部素材の外径寸法と同じ外径寸法を有するプランジ
ャ２個を上下より対向して装入して構成する成形圧縮装
置における成形圧縮室内に超硬質炭化物粉末または超硬
質窒化物粉末等の超硬質粉末と、コバルト粉末またはニ
ッケル粉末またはニッケルーモリブデン混合粉末等の焼
結助材粉末との混合粉末を充填し、其の充填した混合粉
末の上に高速度鋼粉末等の強力合金粉末を２段に重ねて
充填し、次いで成形圧縮室内における」１下対向した２
個のプランジャを機械プレスにより加圧して、其の成形
圧縮装置における成形圧縮室内に充填しである混合粉末
にｌ ｔｏｎ ／ ｃｒＡ乃至１０ｔｏｎ／ｃａの圧力
を加えて成形圧縮体を生成し、次いで、其の生成した成
形圧縮体を真空中または不活性ガス中または還元性ガス
中にて１，２００℃乃至１，５００℃の温度にて加熱し
て超硬質合金粉末焼結ドリル部と強力合金粉末焼結中間
連結部とを生成すると同時に、其の超硬質合金粉末焼結
中間連結部との接触部において相互の粉末が混合焼結し
てドリフし本体部を生成し、次いで、其の生成したドリ
ル本体部昏こおける強力合金粉末焼結中間連結部の端部
にシャンク部を溶接してドリル構成体を生成することを
特徴とする超硬質合金穴加工用工具である超硬質合金ド
リルの製造法。(3) An integral structure with an inner surface that corresponds to the outer surface of the drill body material that can take the form immediately before the "grinding allowance" removed by the forming operation performed to produce the completed drill body, or Ultra-hard carbide powder or ultra-hard carbide powder or A mixed powder of ultra-hard powder such as ultra-hard nitride powder and sintering aid powder such as cobalt powder, nickel powder, or nickel-molybdenum mixed powder is filled, and high-speed steel is placed on top of the filled mixed powder. Strong alloy powder such as powder is stacked and filled in two stages, and then in the molding compression chamber,
A pressure of 1 ton/crA to 10 ton/ca is applied to the mixed powder filled in the molding and compression chamber of the molding and compressing device by pressurizing the plungers with a mechanical press to produce a molded and compressed body, and then, The formed compressed body thus produced is heated at a temperature of 1,200°C to 1,500°C in a vacuum, an inert gas, or a reducing gas to form a sintered drill part of a superhard alloy powder and a strong alloy powder. At the same time, at the contact part with the cemented carbide powder sintered intermediate connection part, mutual powders are mixed and sintered to form a main body part, and then the produced Manufacture of a super-hard alloy drill, which is a tool for drilling holes in a super-hard alloy, characterized in that a shank part is welded to the end of a sintered intermediate connection part of a strong alloy powder in the drill body to produce a drill component. Law.
形作業により除かれる「研削しろ」が除かれる直前の形
態を成せるエンドミル本体部素材の外面形態に対応した
内面形態を形成した一体構造または組立構造の成形型に
、其のエンドミル本体部素材の外径寸法と同じ外径寸法
を有するプランジャ２個を上下より対向して装入して構
成した成形圧縮装置における成形圧縮室内に、超硬質炭
化物粉末または超硬質窒化物粉末等の超硬質物粉末とコ
バルト粉末またはニッケル粉末またはニッケルーモリブ
デン混合粉末等の焼結助材粉末との混合粉末を充填し、
その充填した混合粉末の上に高速度鋼粉末等の強力合金
粉末を２段に重ねて充填し、次いで、成形圧縮装置をこ
おける上下対向したプランジャを機械プレスを二より加
圧して、其の成形圧縮装置における成形圧縮室内に充填
しである粉末にｌ ｔｏｎ ／ ｃｒｌ乃至１０ ｔＯ
ｎ ／ ｃＪ の圧力を加えて成形圧縮体を生成し、次
いで、其の生成した成形圧縮体を真空中または不活性ガ
ス中または還元性ガス中にて１，２００℃乃至１，５０
０℃の温度にて加熱して超硬質合金粉末焼結エンドミル
部と強力合金粉末焼結中間連結部とを生成すると同時に
其の超硬質合金粉末焼結エンドミル部と強力合金粉末焼
結中間連結部との接触部において相互の粉末が混合焼結
してエンドミル本体部を生成し、次いで、其のエンドミ
ル本体部昏こおける強力合金焼結中間連結部の端部にシ
ャンク部を溶接してエンドミル構成体を生成することを
特徴とする超硬質合金穴加工用工具である超硬質合金エ
ンドミルの製造法。(4) An integral structure with an inner surface that corresponds to the outer surface of the end mill main body material that can take the form immediately before the "grinding allowance" removed by the forming operation performed to produce the finished end mill main body, or The molding compression chamber of the molding compression device is constructed by inserting two plungers having the same outer diameter as the outer diameter of the end mill main body material from above and below into a mold with an assembled structure. Filled with a mixed powder of ultra-hard substance powder such as carbide powder or ultra-hard nitride powder and sintering aid powder such as cobalt powder or nickel powder or nickel-molybdenum mixed powder,
On top of the filled mixed powder, strong alloy powder such as high-speed steel powder is stacked and filled in two stages, and then the vertically opposed plungers of the molding and compression device are pressurized by two mechanical presses. The powder packed in the molding and compression chamber of the molding and compression device has a concentration of 1 ton/crl to 10 tO.
A pressure of n/cJ is applied to produce a compacted compact, and then the compacted compact is heated at 1,200°C to 1,50°C in vacuum, in an inert gas, or a reducing gas.
Heating at a temperature of 0° C. produces a super hard alloy powder sintered end mill part and a strong alloy powder sintered intermediate joint part, and at the same time produces the super hard alloy powder sintered end mill part and a strong alloy powder sintered intermediate joint part. The mutual powders are mixed and sintered at the contact area to produce an end mill body, and then the shank part is welded to the end of the strong alloy sintered intermediate connection part in the end mill body to complete the end mill configuration. A method for manufacturing a cemented carbide end mill, which is a tool for machining holes in a cemented carbide, which is characterized by generating a body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19254383A JPS6085809A (en) | 1983-10-17 | 1983-10-17 | Carbide cemented drilling tool and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19254383A JPS6085809A (en) | 1983-10-17 | 1983-10-17 | Carbide cemented drilling tool and manufacturing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6085809A true JPS6085809A (en) | 1985-05-15 |
Family
ID=16293023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19254383A Pending JPS6085809A (en) | 1983-10-17 | 1983-10-17 | Carbide cemented drilling tool and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6085809A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6037287A (en) * | 1997-11-26 | 2000-03-14 | Praxair S.T. Technology, Inc. | Laser clad pot roll sleeves and bushings for galvanizing baths |
-
1983
- 1983-10-17 JP JP19254383A patent/JPS6085809A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6037287A (en) * | 1997-11-26 | 2000-03-14 | Praxair S.T. Technology, Inc. | Laser clad pot roll sleeves and bushings for galvanizing baths |
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