JPH0671502A - Cemented carbide tool - Google Patents
Cemented carbide toolInfo
- Publication number
- JPH0671502A JPH0671502A JP4252096A JP25209692A JPH0671502A JP H0671502 A JPH0671502 A JP H0671502A JP 4252096 A JP4252096 A JP 4252096A JP 25209692 A JP25209692 A JP 25209692A JP H0671502 A JPH0671502 A JP H0671502A
- Authority
- JP
- Japan
- Prior art keywords
- cemented carbide
- carbide
- joined
- tip
- hard layer
- 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
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 28
- 239000010959 steel Substances 0.000 claims abstract description 28
- 229910052751 metal Inorganic materials 0.000 claims abstract description 14
- 239000002184 metal Substances 0.000 claims abstract description 14
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 claims abstract description 11
- 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 claims abstract description 9
- NRTOMJZYCJJWKI-UHFFFAOYSA-N Titanium nitride Chemical compound [Ti]#N NRTOMJZYCJJWKI-UHFFFAOYSA-N 0.000 claims abstract description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 11
- 239000000126 substance Substances 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 17
- 230000008646 thermal stress Effects 0.000 abstract description 4
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract 1
- 238000005336 cracking Methods 0.000 abstract 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 22
- 238000000034 method Methods 0.000 description 18
- 229910052759 nickel Inorganic materials 0.000 description 10
- 238000005304 joining Methods 0.000 description 8
- 238000003466 welding Methods 0.000 description 8
- 239000010941 cobalt Substances 0.000 description 6
- 229910017052 cobalt Inorganic materials 0.000 description 6
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 6
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 229910045601 alloy Inorganic materials 0.000 description 4
- 229910052709 silver Inorganic materials 0.000 description 4
- 239000004332 silver Substances 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229910000531 Co alloy Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 239000010953 base metal Substances 0.000 description 1
- 238000005219 brazing Methods 0.000 description 1
- 238000010273 cold forging Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000003870 refractory metal Substances 0.000 description 1
- 102200082816 rs34868397 Human genes 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 239000002436 steel type Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
Landscapes
- Cutting Tools, Boring Holders, And Turrets (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、耐摩性と靭性にすぐれ
た超硬工具を提供するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention provides a cemented carbide tool having excellent wear resistance and toughness.
【０００２】[0002]
【従来の技術】超硬合金チップを鋼製の支持部材に接合
した超硬工具が広く知られている。従来の超硬工具は、
超硬チップを鋼製の支持部材に銀蝋、銅蝋等を用いて蝋
付けしていたが、蝋付け強度が十分ではなく、蝋材が比
較的低温で軟化するので、高温で使用できないという問
題点があった。これを解決するため、超硬合金チップを
ニッケル等の接合層を挟んで摩擦溶接する接合方法が提
案されている（特公昭６２−６０２０４号）。この方法
は、鋼製の支持部材と超硬合金チップとの間にニッケ
ル、コバルトあるいはこれらの合金を挟み、チップまた
は鋼あるいは双方を回転させて加熱し、ニッケル、コバ
ルト等を流動させてチップ及び鋼を接合させる方法であ
り、接合層の厚みが厚くなると対摩耗性や強度が低下す
るため、該接合層の厚みは、１ｍｍ以下とするのが好ま
しいとされている。2. Description of the Related Art Cemented carbide tools in which cemented carbide tips are joined to steel support members are widely known. Conventional carbide tools are
Carbide chips were brazed to a steel support member using silver wax, copper wax, etc., but the brazing strength is not sufficient and the wax material softens at a relatively low temperature, so it cannot be used at high temperatures. There was a problem. In order to solve this problem, a joining method has been proposed in which a cemented carbide chip is friction-welded with a joining layer such as nickel sandwiched therebetween (Japanese Patent Publication No. 62-60204). In this method, nickel, cobalt or an alloy thereof is sandwiched between a steel support member and a cemented carbide chip, and the chip or steel or both are rotated and heated to flow nickel, cobalt or the like to form the chip and This is a method for joining steels, and it is said that the thickness of the joining layer is preferably 1 mm or less because the wear resistance and the strength decrease as the thickness of the joining layer increases.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上記接
合層の厚みが１ｍｍ以下の薄いものでは、超硬合金と鋼
材の熱膨張率の差による熱応力を吸収できず、寸法の大
きな工具の場合等に割れが発生するという問題がある。
また、上記の方法によると、硬質の超硬合金チップ中の
結合材がニッケル、コバルト等の接合層内に拡散した状
態で、該接合層によって鋼製の支持部材に接合されるの
で、従来の蝋材による接合方法よりは高い接合強度が得
られるとされているが、比較的強度の低いニッケル、コ
バルト等の接合層が介在するため、依然としてこの部分
の強度や対摩耗性に問題がある。さらに、使用中に摩擦
等で高温となった場合、接合層が大きな熱応力を受け、
剥離が生じるという問題もあった。そこで、本発明は、
上記従来の接合方法を改良し、より強度的にすぐれた超
硬工具を提供するものである。However, in the case where the thickness of the joining layer is as thin as 1 mm or less, the thermal stress due to the difference in thermal expansion coefficient between the cemented carbide and the steel material cannot be absorbed, and in the case of a tool having a large dimension, etc. There is a problem that cracks occur in the.
Further, according to the above method, the binder in the hard cemented carbide chip is joined to the steel support member by the joining layer in a state where the binder is diffused in the joining layer of nickel, cobalt or the like. It is said that higher joining strength can be obtained than the joining method using a wax material, but since a joining layer of relatively low strength such as nickel or cobalt is present, there is still a problem in strength and wear resistance of this portion. Furthermore, when the temperature becomes high due to friction during use, the bonding layer receives large thermal stress,
There was also the problem of peeling. Therefore, the present invention is
It is intended to provide a cemented carbide tool having improved strength by improving the conventional joining method.
【０００４】[0004]
【課題を解決するための手段】上記課題を解決するた
め、本発明は次のような構成を採用した。すなわち、本
発明にかかる超硬工具は、炭化タングステン、炭化チタ
ン、窒化チタン等の硬質物質を鉄族金属で結合した超硬
合金チップを鋼製支持部材に接合した超硬工具であっ
て、前記超硬チップが、炭化タングステン、炭化チタ
ン、窒化チタン等の硬質物質を鉄族金属で結合した熱膨
張係数が前記超硬合金チップよりは低く鋼製支持部材よ
りは高い中間硬質層を介して接合されていることを特徴
としている。In order to solve the above problems, the present invention employs the following configurations. That is, the cemented carbide tool according to the present invention is a cemented carbide tool in which a cemented carbide alloy chip in which a hard material such as tungsten carbide, titanium carbide, or titanium nitride is bonded with an iron group metal is joined to a steel support member, Cemented carbide tip is a hard material such as tungsten carbide, titanium carbide, titanium nitride, etc. bonded by an iron group metal and has a coefficient of thermal expansion lower than that of the cemented carbide alloy tip and higher than that of a steel support member through an intermediate hard layer It is characterized by being.
【０００５】本発明で鋼材に接合される超硬合金チップ
は、炭化タングステン（ＷＣ）、炭化チタン（Ｔｉ
Ｃ）、窒化チタン（ＴｉＮ）その他の硬質物質を鉄族金
属で結合した公知のもので、代表的には、たとえばＷＣ
−Ｃｏ合金がある。このほか、従来耐摩工具、切削工
具、鉱山土木工具等に使用されるいわゆる超硬合金が使
用可能である。The cemented carbide chips to be joined to the steel material according to the present invention include tungsten carbide (WC) and titanium carbide (Ti).
C), titanium nitride (TiN), and other known hard materials bonded by an iron group metal, typically, for example, WC
-There is a Co alloy. In addition, so-called cemented carbide that has been conventionally used for wear resistant tools, cutting tools, mining civil engineering tools and the like can be used.
【０００６】中間硬質層は、上記超硬合金同様に炭化タ
ングステン（ＷＣ）、炭化チタン（ＴｉＣ）、窒化チタ
ン（ＴｉＮ）等、高融点金属の炭化物、窒化物等の硬質
物質を鉄族金属で結合したものであるが、接合される超
硬合金チップよりも鉄族金属の含有量が多く、該超硬合
金チップよりは硬度が低いものである。これに用いられ
る鉄族金属としては、ニッケル（Ｎｉ）、コバルト（Ｃ
ｏ）、鉄（Ｆｅ）等があるが、このうちニッケルが強度
的にすぐれているので特に好ましい。鉄族金属の好まし
い含有量は重量比で２０〜８０％、より好ましくは３０
〜５０％である。この中間硬質層の硬度は、超硬合金チ
ップのそれらより低く、鋼材のそれらよりも高いものと
するのが好ましく、その範囲としては、ロックウエルＣ
スケ−ル（ＨＲＣ）で３０〜６０程度であるのが好まし
い。また、上記中間硬質層の熱膨張率は、超硬合金チッ
プのそれよりも大きく、鋼材のそれよりも小さいもの
で、超硬合金と鋼材の熱膨張率の中間値よりもやや低目
のものが好ましい。The intermediate hard layer is made of an iron group metal such as tungsten carbide (WC), titanium carbide (TiC), titanium nitride (TiN), and other refractory metal carbides and nitrides, as in the above cemented carbide. Although they are bonded, the content of the iron group metal is larger than that of the cemented carbide chips to be joined and the hardness is lower than that of the cemented carbide chips. The iron group metal used for this is nickel (Ni), cobalt (C
o), iron (Fe), etc., of which nickel is particularly preferable because of its excellent strength. The content of the iron group metal is preferably 20 to 80% by weight, more preferably 30.
~ 50%. The hardness of the intermediate hard layer is preferably lower than those of the cemented carbide chips and higher than those of the steel material, and the range thereof is Rockwell C.
The scale (HRC) is preferably about 30 to 60. Further, the coefficient of thermal expansion of the intermediate hard layer is larger than that of the cemented carbide chip and smaller than that of the steel material, and slightly lower than the intermediate value of the coefficient of thermal expansion of the cemented carbide and the steel material. Is preferred.
【０００７】さらに、上記中間硬質層の厚みは、１ｍｍ
よりも大きいものが好ましい。この層の厚みが薄すぎる
と、使用中における熱膨張率の吸収が十分に行われな
い。このように中間硬質層の厚みを大きくすると、たと
えば純ニッケルのような軟らかいものでは使用中の圧力
によって変形や割れが生じる恐れがあるが、本発明の中
間硬質層は上記のように硬度が高いので変形等が生じな
いのである。なお、場合によっては、この中間硬質層と
鋼製支持部材との間に薄い異種金属層、たとえばニッケ
ル層を形成しておいてもよい。Further, the thickness of the intermediate hard layer is 1 mm.
The larger one is preferable. If this layer is too thin, the coefficient of thermal expansion will not be sufficiently absorbed during use. When the thickness of the intermediate hard layer is increased in this way, for example, a soft material such as pure nickel may be deformed or cracked due to the pressure during use, but the intermediate hard layer of the present invention has high hardness as described above. Therefore, deformation or the like does not occur. In some cases, a thin dissimilar metal layer such as a nickel layer may be formed between the intermediate hard layer and the steel support member.
【０００８】上記超硬合金チップ、中間硬質層、鋼製支
持部材を一体化する接合方法としては、摩擦圧接法を採
用するのが最も好ましいが、場合によっては、たとえば
高周波誘導加熱法、熱間静水圧加圧法（ＨＩＰ）等で接
合してもよい。摩擦圧接法は、これらの部材を突き合わ
せて高速で回転させ、摩擦熱によって流動化して押し付
け一体化する方法で、接合部では相手側への金属の拡散
が生じて、優れた接合強度が得られるのである。As a joining method for integrating the cemented carbide chip, the intermediate hard layer and the steel supporting member, it is most preferable to adopt a friction welding method, but in some cases, for example, a high frequency induction heating method, a hot working method is used. You may join by a hydrostatic pressure method (HIP) etc. The friction welding method is a method in which these members are butted and rotated at a high speed, fluidized by friction heat and pressed and integrated, and at the joint, diffusion of the metal to the other side occurs and excellent joint strength is obtained. Of.
【０００９】[0009]
（実施例１）図１に示す熱間及び冷間鍛造用穴明ピンを
製作した。この穴明ピン１は、鋼製の支持部材２の先端
部に中間硬質層３を介して超硬合金チップ４を接合した
もので、超硬合金チップ４の組成は炭化タングステン
（ＷＣ）が８１％（重量％、以下同じ）、コバルト（Ｃ
ｏ）が１９％であり、硬度はＨＲＡで８４．０、熱膨張
率が６．０〜６．５ｘ１０-6／度Ｃであった。また、中
間硬質層３の組成は、炭化タングステン（ＷＣ）が６７
％、ニッケル（Ｎｉ）が３３％であり、比重は１２．
７、硬度はＨＲＡで７８．４（ＨＲＣで５４．０）、熱
膨張率は８．５〜９．０ｘ１０-6／度Ｃであった。支持
部材である鋼材の鋼種はＤＡＣ６１、硬度はＨＲＣ４
８、熱膨張率は１２．０〜１３．０ｘ１０-6／度Ｃであ
った。(Example 1) The hole pin for hot and cold forging shown in FIG. 1 was manufactured. This punching pin 1 is made by joining a cemented carbide tip 4 to the tip of a steel support member 2 via an intermediate hard layer 3, and the cemented carbide tip 4 has a composition of 81 tungsten carbide (WC). % (Weight%, the same applies hereinafter), cobalt (C
o) was 19%, the hardness was 84.0 in HRA, and the coefficient of thermal expansion was 6.0 to 6.5 × 10 −6 / degree C. The composition of the intermediate hard layer 3 is 67% tungsten carbide (WC).
%, Nickel (Ni) is 33%, and the specific gravity is 12.
7. The hardness was 78.4 in HRA (54.0 in HRC) and the coefficient of thermal expansion was 8.5 to 9.0 × 10 −6 / degree C. The steel type of the steel material that is the supporting member is DAC61 and the hardness is HRC4.
8. The coefficient of thermal expansion was 12.0 to 13.0 × 10 −6 / degree C.
【００１０】図２に示すように、超硬合金チップ４に厚
さ５ｍｍの中間硬質層３を摩擦圧接によって接合したも
のを丸棒状の鋼材の先端部２ａに摩擦圧接により接合し
た。この時の摩擦圧接条件は、回転数が２４００ｒｐ
ｍ、加熱圧力が４２．６ｋｇ／ｍｍ2 、アプセット圧力
が７７．２ｋｇ／ｍｍ2 、加熱時間が５秒間、アプセッ
ト時間が５秒間であった。接合後に機械加工を施して図
１に示す穴明ピンを得た。この穴明ピンは、ＳＫＨ５１
（ＨＲＣ６１）で作られた従来のピンの寿命が４〜５万
個であるのに対し、約４０万個加工することができた。As shown in FIG. 2, a cemented carbide chip 4 to which an intermediate hard layer 3 having a thickness of 5 mm was joined by friction welding was joined to the tip 2a of a round bar-shaped steel material by friction welding. The friction welding condition at this time is that the rotation speed is 2400 rp.
m, heating pressure was 42.6 kg / mm 2 , upset pressure was 77.2 kg / mm 2 , heating time was 5 seconds, and upset time was 5 seconds. After joining, machining was performed to obtain a holed pin shown in FIG. This hole pin is SKH51
The life of the conventional pin made of (HRC61) was 40,000 to 50,000, while approximately 400,000 could be processed.
【００１１】（実施例２）ＷＣ−６％Ｃ０の超硬合金チ
ップ５を、図３に示すように厚さ５ｍｍの上記と同様な
中間硬質層７を介して鋼製（Ｓ４５Ｃ）台金８に摩擦圧
接したのち、焼鈍処理と機械加工を施して図４に示すよ
うな外径１８ｍｍの２枚刃ボ−ルエンドミル１０を製作
した。摩擦圧接条件は実施例１と同じであった。このエ
ンドミルでＳＡＣｕ材の切削を行ったところ、回転数１
２００〜２０００ｒｐｍ、切込量９ｍｍ、切削送り量１
００ｍｍ／ｍｉｎで良好な切削を行うことができた。(Example 2) A cemented carbide chip 5 of WC-6% C0 was formed on a steel (S45C) base metal 8 through an intermediate hard layer 7 having a thickness of 5 mm as shown in FIG. After friction-welding to the above, annealing treatment and machining were performed to manufacture a two-blade ball end mill 10 having an outer diameter of 18 mm as shown in FIG. The friction welding conditions were the same as in Example 1. When the SACu material was cut with this end mill, the rotation speed was 1
200 ~ 2000rpm, Depth of cut 9mm, Cutting feed 1
Good cutting could be performed at 00 mm / min.
【００１２】[0012]
【発明の効果】以上に説明したように、本発明にかかる
超硬工具は、超硬合金チップを該超硬合金チップの熱膨
張率よりは高く鋼材のそれよりは低い熱膨張率を有する
硬質の中間層を介して鋼製の支持部材に摩擦圧接するこ
とにより接合一体化したものであるから、使用中の熱応
力が吸収されるとともに変形が生じにくいので、超硬合
金チップに無理な力が加わらず、長時間にわたって使用
することが可能となった。また、従来の銀蝋のような比
較的軟化温度の低い蝋材を用いないので、高温での使用
も可能となった。As described above, the cemented carbide tool according to the present invention has a cemented carbide tip which is a hard metal having a coefficient of thermal expansion higher than that of the cemented carbide tip and lower than that of steel. Since it is joined and integrated by friction welding to the steel support member via the intermediate layer of, the thermal stress during use is absorbed and deformation is less likely to occur. It became possible to use it for a long time without adding. Further, since a wax material having a relatively low softening temperature such as conventional silver wax is not used, it can be used at high temperature.
【図１】本発明の１実施例の外観図である。FIG. 1 is an external view of an embodiment of the present invention.
【図２】その製作法の説明図である。FIG. 2 is an explanatory view of the manufacturing method thereof.
【図３】異なる実施例の製法の説明図である。FIG. 3 is an explanatory diagram of a manufacturing method according to another embodiment.
【図４】完成品の外観図である。FIG. 4 is an external view of a finished product.
１ 超硬工具（穴明ピン） ２ 支持部材 ３ 中間硬質層 ４ 超硬合金チップ 1 cemented carbide tool (drilling pin) 2 support member 3 intermediate hard layer 4 cemented carbide tip
─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成５年２月１５日[Submission date] February 15, 1993
【手続補正１】[Procedure Amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】請求項１[Name of item to be corrected] Claim 1
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【手続補正２】[Procedure Amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】０００４[Correction target item name] 0004
【補正方法】変更[Correction method] Change
【補正内容】[Correction content]
【０００４】[0004]
【課題を解決するための手段】上記課題を解決するた
め、本発明は次のような構成を採用した。すなわち、本
発明にかかる超硬工具は、炭化タングステン、炭化チタ
ン、窒化チタン等の硬質物質を鉄族金属で結合した超硬
合金チップを鋼製支持部材に接合した超硬工具であっ
て、前記超硬チップが、炭化タングステン、炭化チタ
ン、窒化チタン等の硬質物質を鉄族金属で結合した熱膨
張係数が前記超硬合金チップよりは高く鋼製支持部材よ
りは低い中間硬質層を介して接合されていることを特徴
としている。In order to solve the above problems, the present invention employs the following configurations. That is, the cemented carbide tool according to the present invention is a cemented carbide tool in which a cemented carbide alloy chip in which a hard material such as tungsten carbide, titanium carbide, or titanium nitride is bonded with an iron group metal is joined to a steel support member, carbide tip, tungsten carbide, titanium carbide, cemented thermal expansion coefficient of the hard material bound with iron group metal such as titanium nitride through a low intermediate hard layer higher than steel support member than the cemented carbide tip It is characterized by being.
───────────────────────────────────────────────────── フロントページの続き (71)出願人 392027405 株式会社シルバーロイ販売 大阪府門真市速見町2067 アクテイ88− 207 (72)発明者 高見 千秋 兵庫県加西市広原町518番地の２ 株式会 社シルバーロイ内 ─────────────────────────────────────────────────── ─── Continuation of the front page (71) Applicant 392027405 Silver Roy Sales Co., Ltd. 2067 Hayami-cho, Kadoma-shi, Osaka 88-207 Acty (72) Inventor Chiaki Takami 518 Hirohara-cho, Kasai-shi, Hyogo 2 Stock companies Silver Within Roy
Claims (1)
た超硬工具であって、前記超硬チップが、炭化タングス
テン、炭化チタン、窒化チタン等の硬質物質を鉄族金属
で結合した熱膨張係数が前記超硬合金チップよりは低く
鋼製支持部材よりは高い中間硬質層を介して接合されて
いることを特徴とする超硬工具。1. A cemented carbide tool in which cemented carbide tips are joined to a steel support member, wherein the cemented carbide tips are made by bonding a hard substance such as tungsten carbide, titanium carbide or titanium nitride with an iron group metal. A cemented carbide tool, characterized in that the cemented carbide is joined via an intermediate hard layer whose expansion coefficient is lower than that of the cemented carbide tip and higher than that of the steel support member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4252096A JPH0671502A (en) | 1992-08-26 | 1992-08-26 | Cemented carbide tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4252096A JPH0671502A (en) | 1992-08-26 | 1992-08-26 | Cemented carbide tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0671502A true JPH0671502A (en) | 1994-03-15 |
Family
ID=17232479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4252096A Pending JPH0671502A (en) | 1992-08-26 | 1992-08-26 | Cemented carbide tool |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0671502A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006102823A (en) * | 2004-09-30 | 2006-04-20 | Mitsubishi Materials Corp | End mill material and end mill |
| JP2007268647A (en) * | 2006-03-31 | 2007-10-18 | Mitsubishi Materials Kobe Tools Corp | End mill |
-
1992
- 1992-08-26 JP JP4252096A patent/JPH0671502A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006102823A (en) * | 2004-09-30 | 2006-04-20 | Mitsubishi Materials Corp | End mill material and end mill |
| JP2007268647A (en) * | 2006-03-31 | 2007-10-18 | Mitsubishi Materials Kobe Tools Corp | End mill |
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