EP3253565A1 - Pulverpresse mit kegeligem unterstempel, verfahren zum betrieb einer pulverpresse, pressling hergestellt mit einer pulverpresse, unterstempel einer pulverpresse und computerprogrammprodukt zum verfahren von unterstempeln einer presse - Google Patents
Pulverpresse mit kegeligem unterstempel, verfahren zum betrieb einer pulverpresse, pressling hergestellt mit einer pulverpresse, unterstempel einer pulverpresse und computerprogrammprodukt zum verfahren von unterstempeln einer presseInfo
- Publication number
- EP3253565A1 EP3253565A1 EP16702397.7A EP16702397A EP3253565A1 EP 3253565 A1 EP3253565 A1 EP 3253565A1 EP 16702397 A EP16702397 A EP 16702397A EP 3253565 A1 EP3253565 A1 EP 3253565A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- powder press
- punch
- lower punch
- press according
- 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.)
- Granted
Links
- 239000000843 powder Substances 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims description 15
- 238000004590 computer program Methods 0.000 title claims description 6
- 239000008188 pellet Substances 0.000 title 1
- 238000005266 casting Methods 0.000 claims description 2
- 230000007423 decrease Effects 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 238000003825 pressing Methods 0.000 claims description 2
- 235000007575 Calluna vulgaris Nutrition 0.000 claims 1
- 238000005520 cutting process Methods 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract 1
- 238000013461 design Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004904 shortening Methods 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
- B30B11/02—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space
-
- 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
- B22F3/02—Compacting only
- B22F3/03—Press-moulding apparatus therefor
-
- 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
- B22F3/02—Compacting only
- B22F3/03—Press-moulding apparatus therefor
- B22F2003/033—Press-moulding apparatus therefor with multiple punches working in the same direction
Definitions
- the present invention relates to a powder press with conical lower punches and a manufacturing method and a compact produced with the above-mentioned powder press.
- a press assembly is critical to the possibility of what parts can be pressed and pressed at what time.
- DE 10 2014 003 726 of the Applicant discloses a press for producing dimensionally stable green compacts, in which the used tool assemblies have a design optimization for the compensation of elasticity between individual tool planes. For this purpose, a certain technical effort in the design as well as in the production of the tools is necessary.
- the object of the present invention is to provide a simplified press assembly that can be achieved in the production by conventional methods and shortens a tool change in addition to time during setup.
- each lower punch has a longitudinal extent, in particular a cylindrical longitudinal extent, which is guided by a die, preferably followed by a conical widening at each longitudinal extent.
- a respective cone angle of the lower punch increases from the inside to the outside, while the respective longitudinal extent of the lower punch decreases from the inside to the outside.
- a punch holder directly adjoins the conical widening.
- An embodiment provides, for example, that the conical broadening of the lower punch merges into a cylindrical portion, wherein the cylindrical portion has fastening means for a punch holder.
- a punch holder is connected directly to a lower punch by means of a bayonet closure.
- a connection between punch holder and lower punch takes place without pressure plate and clamping plate.
- Waiver of a perfect elasticity compensation the compensation is usually made by the position control of the machine.
- the tool assemblies can be both one-piece, as well as multipoint by connection technology from possibly head piece, connecting element and foot piece.
- the lower punches are constructed rotationally symmetrical.
- a powder press in which a punch has a longitudinal extent, in particular a cylindrical longitudinal extension, which extends into the die, wherein at the longitudinal extension connects an extension.
- a plurality of interleaved upper punches are constructed as the above or below described lower punches.
- the upper punch and / or the lower punch are made in one piece. There is also the possibility that the upper punch and / or the lower punch is made in several parts.
- a compact of metal powder is produced by the method or the powder press.
- a lower punch of a powder press is proposed, wherein the lower punch is produced by means of a machining method, by means of a primary molding method, a pressing, a cold forming and / or a casting.
- FIG. 3 shows an enlargement of the illustration from FIG. 2 about a correspondingly adapted upper punch
- Fig. 4 A schematic view of the tool structure with a conical lower punch and attached punch holder.
- Fig. 1 shows a powder press as known from the prior art. This has a tool with die, top and bottom punches as well as mandrels. Accessories include clamping plates, pressure plates and punch holders.
- the structure of the stamp shows on the one hand the necessary size, which must be provided for such a powder press. On the other hand, the set-up requires a certain amount of effort, since the clamping plates and pressure plates have to be installed for this purpose.
- Fig. 2 shows an exemplary, schematic tool structure with a conical base.
- the lower punches have an upper portion, the punch head 1, which is preferably cylindrical and extends into the die.
- Each lower punch then has a conical enlargement, followed by a cylindrical section in each case.
- the respective cone angle ie the angle which is enclosed by the angle of the conical shape to the vertical axis 2, is preferably smaller from outside to inside In other words, a respective cone angle of the lower punches increases from the inside to the outside.
- the respective upper area becomes smaller from the inside to the outside.
- FIG. 3 shows a proposed tool design for tapered lower punches, consisting here of die M, three lower punches UE1, UE2, UE3 and upper punch OS. While the three lower punches are constructed analogously to those of FIG. 2, the upper punch OS can have a geometry which is the reverse of the lower punches but has comparable geometry.
- FIG. 4 shows a tool structure for tapered lower punches, comprising a die and three lower punches, which are connected by a fastening means, here in the form of a bayonet closure 3.1, 3.2, 3.3, with the punch holders SH1, SH2, SH3.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Powder Metallurgy (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102015201785.0A DE102015201785A1 (de) | 2015-02-02 | 2015-02-02 | Pulverpresse mit kegeligem Unterstempel |
PCT/EP2016/051932 WO2016124497A1 (de) | 2015-02-02 | 2016-01-29 | Pulverpresse mit kegeligem unterstempel, verfahren zum betrieb einer pulverpresse, pressling hergestellt mit einer pulverpresse, unterstempel einer pulverpresse und computerprogrammprodukt zum verfahren von unterstempeln einer presse |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3253565A1 true EP3253565A1 (de) | 2017-12-13 |
EP3253565B1 EP3253565B1 (de) | 2024-03-20 |
Family
ID=55273259
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16702397.7A Active EP3253565B1 (de) | 2015-02-02 | 2016-01-29 | Pulverpresse mit kegeligem unterstempel, verfahren zum betrieb einer pulverpresse, pressling hergestellt mit einer pulverpresse, unterstempel einer pulverpresse und computerprogrammprodukt zum verfahren von unterstempeln einer presse |
Country Status (6)
Country | Link |
---|---|
US (1) | US20180022050A1 (de) |
EP (1) | EP3253565B1 (de) |
CN (1) | CN107427916B (de) |
DE (1) | DE102015201785A1 (de) |
ES (1) | ES2980789T3 (de) |
WO (1) | WO2016124497A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014003726A1 (de) * | 2014-03-18 | 2015-09-24 | Gkn Sinter Metals Engineering Gmbh | Presse zum Herstellen maßhaltiger Grünlinge und Verfahren zum Herstellen |
DE102015201966A1 (de) | 2015-02-04 | 2016-08-04 | Gkn Sinter Metals Engineering Gmbh | Pulverpresse mit kegeligem Unterbau |
DE102015012005A1 (de) | 2015-09-18 | 2017-03-23 | Gkn Sinter Metals Engineering Gmbh | Stempelwerkzeug einer Sinterpresse und Verfahren hierzu |
DE102015012004A1 (de) | 2015-09-18 | 2017-03-23 | Gkn Sinter Metals Engineering Gmbh | Sinterpresse mit axial kontrollierter Verformung und Verfahren hierzu |
CN110621503B (zh) | 2017-02-08 | 2022-09-16 | Gkn烧结金属工程有限公司 | 具有偏移补偿的工具组 |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2556951A (en) * | 1944-06-05 | 1951-06-12 | Stokes Machine Co | Powdered material compacting press |
US4153399A (en) * | 1977-09-08 | 1979-05-08 | Ptx-Pentronix, Inc. | Multiple punch tool set for powder compacting press |
DE3241383C2 (de) * | 1982-11-09 | 1986-09-04 | Institut po Metalosnanie i Technologia na Metalite, Sofia/Sofija | Vorrichtung zum Umformen von Metall durch Fließpressen |
GB2129724B (en) * | 1982-11-11 | 1986-01-29 | Inst Po Metalloznanie I Tekno | Extrusion and stamping of material |
JPH05140609A (ja) * | 1991-02-08 | 1993-06-08 | Keita Hirai | 段付品汎用成型プレス |
JPH0788699A (ja) * | 1993-09-24 | 1995-04-04 | Mitsubishi Materials Corp | 金型装置 |
JP3158244B2 (ja) * | 1996-11-22 | 2001-04-23 | 三菱マテリアル株式会社 | 多段ヘリカルギアの製造方法及びその粉末成形用金型 |
SE515822C2 (sv) * | 1999-12-30 | 2001-10-15 | Skf Nova Ab | Metod och anordning för kompaktering av pulvermetallkroppar |
JP2004291046A (ja) * | 2003-03-27 | 2004-10-21 | Sumitomo Denko Shoketsu Gokin Kk | 粉末成形における成形体のクラック防止方法及び装置 |
DE102005044759B4 (de) * | 2005-09-20 | 2007-07-12 | Sms Meer Gmbh | Vorrichtung zum Herstellen eines Formteils |
DE102007010360A1 (de) * | 2007-03-03 | 2008-09-04 | Dorst Technologies Gmbh & Co. Kg | Pressstempel-Befestigungsvorrichtung und Verfahren zum Befestigen eines Stempels in einer Presse |
DE102010051513A1 (de) * | 2010-11-16 | 2012-05-16 | Dorst Technologies Gmbh & Co. Kg | Keramikpulver- und/oder Metallpulver-Pressenwerkzeug, Keramikpulver- und/oder Metallpulver-Presse, modulares System mit einem solchen Pressenwerkzeug, Verfahren zum Zusammensetzen eines solchen Pressenwerkzeugs |
DE102013006831B4 (de) * | 2013-04-22 | 2015-05-28 | Schuler Pressen Gmbh | Spannsystem zum Spannen eines Stempels an einem Stößel einer Fließdruckpresse |
CN103331444B (zh) * | 2013-07-05 | 2015-09-30 | 益阳市新纪元粉末冶金有限公司 | 粉末冶金制品压制成型模具及应用和成型脱模方法 |
CN203651029U (zh) * | 2013-12-24 | 2014-06-18 | 北京国药龙立自动化技术有限公司 | 单工位等密度压机 |
DE102014003726A1 (de) | 2014-03-18 | 2015-09-24 | Gkn Sinter Metals Engineering Gmbh | Presse zum Herstellen maßhaltiger Grünlinge und Verfahren zum Herstellen |
DE102015201966A1 (de) * | 2015-02-04 | 2016-08-04 | Gkn Sinter Metals Engineering Gmbh | Pulverpresse mit kegeligem Unterbau |
DE102015012005A1 (de) * | 2015-09-18 | 2017-03-23 | Gkn Sinter Metals Engineering Gmbh | Stempelwerkzeug einer Sinterpresse und Verfahren hierzu |
DE102015012004A1 (de) * | 2015-09-18 | 2017-03-23 | Gkn Sinter Metals Engineering Gmbh | Sinterpresse mit axial kontrollierter Verformung und Verfahren hierzu |
-
2015
- 2015-02-02 DE DE102015201785.0A patent/DE102015201785A1/de not_active Withdrawn
-
2016
- 2016-01-29 EP EP16702397.7A patent/EP3253565B1/de active Active
- 2016-01-29 WO PCT/EP2016/051932 patent/WO2016124497A1/de active Application Filing
- 2016-01-29 ES ES16702397T patent/ES2980789T3/es active Active
- 2016-01-29 US US15/547,708 patent/US20180022050A1/en not_active Abandoned
- 2016-01-29 CN CN201680008351.4A patent/CN107427916B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
DE102015201785A1 (de) | 2016-08-04 |
EP3253565B1 (de) | 2024-03-20 |
ES2980789T3 (es) | 2024-10-03 |
CN107427916B (zh) | 2020-09-29 |
US20180022050A1 (en) | 2018-01-25 |
WO2016124497A1 (de) | 2016-08-11 |
CN107427916A (zh) | 2017-12-01 |
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