JPS63405A - Machine for producing powder metallurgically processed material at high density - Google Patents
Machine for producing powder metallurgically processed material at high densityInfo
- Publication number
- JPS63405A JPS63405A JP13883687A JP13883687A JPS63405A JP S63405 A JPS63405 A JP S63405A JP 13883687 A JP13883687 A JP 13883687A JP 13883687 A JP13883687 A JP 13883687A JP S63405 A JPS63405 A JP S63405A
- Authority
- JP
- Japan
- Prior art keywords
- forging
- machine
- working surface
- tool
- producing powder
- 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
- 239000000843 powder Substances 0.000 title claims description 18
- 239000000463 material Substances 0.000 title claims description 16
- 238000005242 forging Methods 0.000 claims description 23
- 239000002775 capsule Substances 0.000 claims description 16
- 239000002184 metal Substances 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 239000012255 powdered metal Substances 0.000 claims 1
- 238000005245 sintering Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005056 compaction Methods 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001513 hot isostatic pressing Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000000462 isostatic pressing Methods 0.000 description 1
- 238000010310 metallurgical process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/007—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a plurality of pressing members working in different directions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/17—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by forging
- B22F3/172—Continuous compaction, e.g. rotary hammering
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Forging (AREA)
- Powder Metallurgy (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
本発明は、シリンダ状のブリキ・カプセル内に詰められ
た金属粉末、特に真空中または保護ガス雰囲気中で予備
焼結が行なわれた金属粉末の熱間鍛造により、粉末冶金
学的な加工材料を高密度に製造するための、１領域で同
時に叩打する少なくとも３つの工具を持った鍛造機械に
関する。DETAILED DESCRIPTION OF THE INVENTION The present invention is characterized in that hot forging of metal powder packed into a cylindrical tin capsule, in particular a metal powder pre-sintered in a vacuum or in a protective gas atmosphere, produces powder The present invention relates to a forging machine with at least three tools striking simultaneously in one area for producing metallurgical workpieces with high density.
既に、粉末形状の材料、特に金属素材からプレスおよび
／または焼結により焼結金属を得るため、ならびに、そ
れゆえ粉末冶金学的な加工材料を製造するための別種の
方法が存在している。そのため、大抵、適切に調合され
た金属粉末がブリキ・カプセル内に収容され、機械的に
圧縮され、そして排出され或いは保護ガス雰囲気に曝さ
れ、それから、前記カプセルが閉じられ、焼結が行われ
る。Other methods already exist for obtaining sintered metals by pressing and/or sintering from materials in powder form, in particular metal raw materials, and therefore for producing powder metallurgical processed materials. For this purpose, a suitably formulated metal powder is usually placed in a tin capsule, mechanically compressed and evacuated or exposed to a protective gas atmosphere, then said capsule is closed and sintering takes place. .
そのように焼結された部材は非常に多孔性を有するか、
当該孔空間は高圧および強い焼結により減少され、そし
て前記部材は圧縮され、これは、次の作業工程のために
必要な強度を達成するための予備焼結において、および
前記加工材料の実際に望ましい技術的特徴を達成するた
めの最終焼結においても行われることができる。前記冶
金学的加工材料の実際上１００％密な接合構造（組織）
を得るために、今までは、制御ブリキ−カプセル等が、
充填粉末の焼結後に、高温平衡プレス内で高温および多
方面からの高いガス圧の下で必す圧縮されなければなら
なかった。しかし、この高温平衡プレス工程は、時間を
浪費し且つ高価であるたけてなく、さらに、そのような
特殊な方法に適する最も浪費的なプレスが、当該方法の
必要時間に対応して狭い範囲内の能力を持つだけの結果
にしている。The parts so sintered are highly porous or
The pore space is reduced by high pressure and intense sintering, and the part is compressed, which in the preliminary sintering to achieve the necessary strength for the next working step and in the actual formation of the processed material. It can also be carried out in the final sintering to achieve the desired technical characteristics. Virtually 100% dense joint structure (structure) of the metallurgically processed material
Until now, controlled tin capsules etc. have been used to obtain
After sintering of the filled powder, it had to be compacted in a hot isostatic press at high temperature and under high gas pressure from multiple directions. However, this high-temperature isostatic pressing step is extremely time-consuming and expensive, and furthermore, the most wasteful presses suitable for such specialized methods are limited to a narrow range corresponding to the time requirements of the method. This is the result of having the ability.
また、鍛造方法を介して焼結を行うことが既に提案され
ているけれども、そのためには、今までは、この鍛造・
焼結方法の効果のある実施のために一般的な考慮のみが
なされ、役に立つ案は存在していない。なぜなら、柔ら
かく砕くためであって、前記接合構造の圧縮のためでは
ない前記加工材料の自由な打ち伸ばしを介する叩打のな
い鍛造が要求されるからである。Also, although it has already been proposed to carry out sintering via a forging method, until now this forging and
Only general considerations have been made for the effective implementation of sintering methods, and no useful suggestions exist. This is because hammer-free forging is required for the purpose of soft crushing and not for the compression of the joint structure, but through the free stretching of the workpiece material.
それゆえ、本発明は、これらの欠点を除去するとともに
、かなり少ない機構・構造的費用を以て、粉末冶金学的
加工材料の特に経済的な製造を可能にする最初に記載し
た種類の製造機械を提供する課題を基礎としている。The invention therefore provides a production machine of the first-mentioned type, which eliminates these drawbacks and allows a particularly economical production of powder metallurgical process materials with considerably lower mechanical and structural outlays. It is based on the issues to be solved.
本発明は、前記各工具が円錐状の作用表面を有し、当該
各作用表面は、前記工具の下死点位置で截頭円錐を形成
し、この截頭円錐は、前記変形されていないカプセルの
直径に適合する大きい直径を有するとともに、当該大き
い直径に対向して対応する特に１．５：１から３：１ま
での変形度に縮小された小さい直径を有する。これらの
工具を介して、前記予備焼結されたカプセルは、実際高
温平衡プレス工程の代わりに、前記接合（Ｒ造の望まし
い圧縮を必然的に行うことになる鍛造工程の下に支配さ
れることが可能となり、その際、前記圧縮に導く変形は
、時々、周囲ｔｎ域の全体を捕らえ、且つ制御されない
半径方向の材料の流れにより害されることがない。前記
鍛造工程は、最小の時間内に終了し、且つ高い加工能力
を可能にし、そのため、前記最後の材料すなわち前記粉
末を充填されたカプセルは棒鋼に加工されることになり
、且つ、それゆえ？３通の焼結ではそれは最終焼結に続
けられねばならないと言うような、機械的変形および前
記加工材料の他の加工を行うための、適宜の補足的な作
業処置を必要としなくなる。前記ブリキ・カプセルは、
その変形の際に鍛えられ且つ伸展される。前記予備焼結
は普通の鍛造炉内で達成されることかでき、一方、前記
カプセルは鍛造７３度以上にされ、それから、同カプセ
ルは望ましい１００％の圧縮を達成するため、１．５：
１から３：１の変形度を以て１つの工程で変形されるこ
とができる。その際、前記変形度は、粉末粒子の多きさ
、形状、および性質に依存する。The present invention provides that each tool has a conical working surface, each working surface forming a truncated cone at the bottom dead center position of the tool, and the truncated cone forming the undeformed capsule. , and a corresponding smaller diameter which is reduced to a degree of deformation, in particular from 1.5:1 to 3:1. Through these tools, the pre-sintered capsules are actually subjected to a forging process which will entail the desired compaction of the bonding (R) instead of a hot isostatic pressing process. is possible, in which case the deformation leading to compression sometimes captures the entire circumferential tn area and is not impaired by uncontrolled radial material flow.The forging process is performed within a minimum time. The last material, i.e. the powder-filled capsule, will be processed into a steel bar, and therefore in three sinterings it will be the final sintering. The tin capsule does not require appropriate supplementary working procedures for carrying out mechanical deformation and other processing of the processed material, such as having to be followed by
During its deformation, it is trained and stretched. The pre-sintering can be accomplished in a conventional forging furnace, while the capsules are forged to over 73 degrees, and then the capsules are heated to 1.5:1 to achieve the desired 100% compaction.
It can be deformed in one step with a deformation degree of 1 to 3:1. The degree of deformation then depends on the size, shape and nature of the powder particles.
本発明によると、２〜２０″の作用表面の円錐角度が、
１つの鍛造工程を達成するために、破裂等のおそれがな
い状態で望ましい変形度まで前記加工材料を変形させ得
る値である。According to the invention, the cone angle of the working surface is between 2 and 20".
This is a value that allows the material to be deformed to a desired degree of deformation without the risk of rupture, etc., in order to accomplish one forging process.
図面には、本発明の客体が純粋に概略的なものとして具
体的に示されている。The objects of the invention are shown specifically in the drawings, which are shown purely schematically.
粉末冶金学的加工材料１をより高密度に製造できるよう
にするため、金属粉末２を充填されたブリキ・カプセル
３が、既述の方法でさらに予備焼結をされることなく鍛
造温度以上にされていて、鍛造を行われ、その際、同時
間的な長さの下での鍛造の場合に対応する大きさの変形
度に基つき、当該カプセル３内の粉末２の圧縮が行われ
るようになる。当該鍛造を介して、１００％まで圧縮さ
れた接合構造（組織）を持つ最終焼結がなされた棒鋼が
、粉末冶金学的加工材料１として生じる。その際、前記
変形は、時々前記カプセル３の全周囲を捕捉しなければ
ならず、それゆえ４つの鍛造工具４が予め備えられてお
り、これらは、時折円錐形の作用表面５を有し、且つそ
れらの下死点位置では、１つの可能な閉じられた截頭円
錐６を形成する。前記４つの工具４は、尖った角の発生
を回避するため、または、対称的な貫徹鍛造を達成する
ために、１つの領域内で同時に叩打し、その結果、充填
されたカプセル３は、最早既述の操作によらず、軸方向
に変形されるだけでなく、それらの軸心の周りで各々の
作用衝程に向かって歪められる。In order to be able to produce the powder metallurgically processed material 1 with higher density, the tin capsule 3 filled with the metal powder 2 is heated above the forging temperature without further presintering in the manner described above. The powder 2 in the capsule 3 is compressed based on the degree of deformation corresponding to the case of forging under the same time length. become. Through the forging, a final sintered steel bar with a bonded structure (structure) compressed to 100% is produced as powder metallurgically processed material 1. The deformation sometimes has to capture the entire circumference of the capsule 3, and therefore four forging tools 4 are provided, which sometimes have a conical working surface 5; And in their bottom dead center position they form one possible closed truncated cone 6. Said four tools 4 strike simultaneously in one area in order to avoid the occurrence of sharp corners or to achieve symmetrical through-forging, so that the filled capsule 3 no longer Regardless of the operations described, they are not only axially deformed, but also distorted about their axes towards their respective working strokes.
第１図は、本発明の鍛造工具を用いた鍛造を示す概略斜
視図、
第２図および第３図は、この鍛造を示す軸方向断面図な
いし正面図である。FIG. 1 is a schematic perspective view showing forging using the forging tool of the present invention, and FIGS. 2 and 3 are axial sectional views and front views showing this forging.
Claims (2)
られた粉末金属（２）、特に真空または保護ガス雰囲気
内で予備焼結が行われた金属粉末（２）の熱間鍛造によ
り、粉末冶金学的な加工材料（１）を製造するための鍛
造機械であって、１領域で同時に叩打する少なくとも３
つの工具（４）を持った鍛造機械において、前記工具（
４）は円錐形の作用表面（５）を有し、当該作用表面は
、前記工具（４）の下死点位置内で１つの截頭円錐（６
）を形成し、当該截頭円錐（６）は、前記変形されない
カプセル（３）の直径に適合する大きい直径と、当該大
きい直径に対向して対応する、特に１０５：１から３：
１までの変形度に縮小された小さい直径とを有している
ことを特徴とする粉末冶金学的加工材料を高密度に製造
する製造機械。(1) Hot forging of a powdered metal (2) packed into a cylindrical sheet metal capsule (3), in particular a metal powder (2) pre-sintered in a vacuum or in a protective gas atmosphere. A forging machine for producing powder metallurgical processed materials (1), comprising at least three forging machines simultaneously striking in one area.
In a forging machine having one tool (4), said tool (
4) has a conical working surface (5), which working surface comprises one truncated cone (6) within the bottom dead center position of said tool (4).
), said truncated cone (6) having a larger diameter adapted to the diameter of said undeformed capsule (3) and corresponding oppositely to said larger diameter, in particular from 105:1 to 3:
A manufacturing machine for producing powder metallurgically processed materials in a high density, characterized in that the material has a small diameter reduced to a degree of deformation of up to 1.
の値であることを特徴とする特許請求の範囲第１項記載
の鍛造機械。(2) The cone angle of the working surface (5) is between 2 and 20°.
The forging machine according to claim 1, wherein the forging machine has a value of .
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT146986A AT384762B (en) | 1986-06-02 | 1986-06-02 | FORGING MACHINE FOR PRODUCING POWDER METALLIC WORKPIECES OF LARGE DENSITY |
| AT1469/86 | 1986-06-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63405A true JPS63405A (en) | 1988-01-05 |
Family
ID=3514577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13883687A Pending JPS63405A (en) | 1986-06-02 | 1987-06-02 | Machine for producing powder metallurgically processed material at high density |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0248783A1 (en) |
| JP (1) | JPS63405A (en) |
| AT (1) | AT384762B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07331378A (en) * | 1994-06-03 | 1995-12-19 | Kobe Steel Ltd | Production of iron-chromium-aluminum sintered alloy |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4976915A (en) * | 1988-08-30 | 1990-12-11 | Kuroki Kogyosho Co., Ltd. | Method for forming a powdered or a granular material |
| CN102069191B (en) * | 2010-12-24 | 2012-05-30 | 金堆城钼业股份有限公司 | Preparation method of refractory metal pipe |
| GB2536483B (en) * | 2015-03-19 | 2019-10-09 | Avic Beijing Institute Of Aeronautical Mat Avic Biam | A method of Forming a Metal Component |
| CN112211015A (en) * | 2020-09-30 | 2021-01-12 | 江阴泰阳成索业有限公司 | A rotary forging die for high-efficiency production of surface-contact wire rope |
| CN118527592B (en) * | 2024-07-25 | 2024-09-24 | 西安欧中材料科技股份有限公司 | Forging method and application of powder metallurgy tungsten-based high-speed steel |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS48103407A (en) * | 1972-04-15 | 1973-12-25 | ||
| JPS5229407A (en) * | 1975-09-02 | 1977-03-05 | Miyamoto Kogyo Kk | Process for production of titanium bars |
| JPS61536A (en) * | 1984-06-12 | 1986-01-06 | Toray Ind Inc | Manufacture of fiber reinforced metallic composite material |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3834004A (en) * | 1973-03-01 | 1974-09-10 | Metal Innovations Inc | Method of producing tool steel billets from water atomized metal powder |
| US4038738A (en) * | 1975-01-10 | 1977-08-02 | Uddeholms Aktiebolag | Method and means for the production of bar stock from metal powder |
| AT350356B (en) * | 1977-08-30 | 1979-05-25 | Gfm Fertigungstechnik | FORGING THORN |
| DE2827913C3 (en) * | 1978-06-26 | 1981-01-15 | Fritz Werner Industrie-Ausruestungen Gmbh, 6222 Geisenheim | Rotary swaging machine in ring type |
| US4435359A (en) * | 1982-06-21 | 1984-03-06 | Huntington Alloys, Inc. | Apparatus and method for fabricating tubes from powder |
-
1986
- 1986-06-02 AT AT146986A patent/AT384762B/en not_active IP Right Cessation
-
1987
- 1987-05-07 EP EP87890088A patent/EP0248783A1/en not_active Withdrawn
- 1987-06-02 JP JP13883687A patent/JPS63405A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS48103407A (en) * | 1972-04-15 | 1973-12-25 | ||
| JPS5229407A (en) * | 1975-09-02 | 1977-03-05 | Miyamoto Kogyo Kk | Process for production of titanium bars |
| JPS61536A (en) * | 1984-06-12 | 1986-01-06 | Toray Ind Inc | Manufacture of fiber reinforced metallic composite material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07331378A (en) * | 1994-06-03 | 1995-12-19 | Kobe Steel Ltd | Production of iron-chromium-aluminum sintered alloy |
Also Published As
| Publication number | Publication date |
|---|---|
| ATA146986A (en) | 1987-06-15 |
| EP0248783A1 (en) | 1987-12-09 |
| AT384762B (en) | 1988-01-11 |
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