EP2718056A1 - Verfahren zur gleichzeitigen herstellung eines ersten und zweiten kolbenteils - Google Patents
Verfahren zur gleichzeitigen herstellung eines ersten und zweiten kolbenteilsInfo
- Publication number
- EP2718056A1 EP2718056A1 EP12725403.5A EP12725403A EP2718056A1 EP 2718056 A1 EP2718056 A1 EP 2718056A1 EP 12725403 A EP12725403 A EP 12725403A EP 2718056 A1 EP2718056 A1 EP 2718056A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- piston
- die
- forging
- billet
- piston part
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/18—Making machine elements pistons or plungers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J13/00—Details of machines for forging, pressing, or hammering
- B21J13/02—Dies or mountings therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
- B21J5/02—Die forging; Trimming by making use of special dies ; Punching during forging
- B21J5/022—Open die forging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
- B23P15/10—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J1/00—Pistons; Trunk pistons; Plungers
- F16J1/005—Pistons; Trunk pistons; Plungers obtained by assembling several pieces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F2200/00—Manufacturing
- F02F2200/04—Forging of engine parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F3/00—Pistons
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49229—Prime mover or fluid pump making
- Y10T29/49249—Piston making
Definitions
- the present invention relates to a method for the simultaneous production of a first piston part and a second piston part.
- the invention also relates to a forging apparatus for carrying out the method according to the invention and a piston produced by this method.
- US 2008/0127818 A1 discloses a further method for producing pistons for internal combustion engines.
- the present invention addresses the problem of providing a method for the simultaneous production of two piston parts, by means of which known pistons, in particular built pistons, can be produced inexpensively and faster.
- the present invention further addresses the problem of providing a forging apparatus by means of which pistons can be produced more favorably and faster, that is to say forged in the present case. This problem is inventively by the objects of
- the present invention is based on the general idea, a piston, usually consisting of a piston upper part and a piston lower part manufacturing technology easily and quickly produced by both piston parts forged simultaneously and thereby manufactured.
- a piston usually consisting of a piston upper part and a piston lower part manufacturing technology easily and quickly produced by both piston parts forged simultaneously and thereby manufactured.
- the two piston parts preferably a piston upper part and a
- associated piston lower part produced simultaneously in a single forging process, wherein a first billet, that is, for example, in semi-finished steel, between an upper die and an intermediate die of a corresponding forging apparatus is used, whereas a second billet between the intermediate die and an associated lower die is used.
- the upper die and the lower die are moved towards each other, whereby from the first billet, the first piston part, preferably a piston upper part and at the same time from the second billet, the second piston part, preferably the associated piston lower part, are forged.
- the first and the second piston part together can result in a piston or that the two piston parts are constructed identical, for example as two piston upper parts or two piston lower parts.
- the cycle time since two forgings, that is two piston parts, can be forged simultaneously by the intermediate die according to the invention.
- both the upper die and the lower die can be moved, so that, for example, the intermediate die is fixed, but of course it is also conceivable that only the upper or the Lower die is movable, wherein in all the illustrated variants, the simultaneous forging two piston parts is quick and easy.
- the intermediate die is held in position by means of a spring device during forging. In this way it can be ensured that during the fast and laborious forging process, the intermediate die is held in its predefined position, wherein the spring device
- the intermediate die is firmly fixed to itself, so that the upper die from above and the lower die are driven from below onto the intermediate die.
- not only an intermediate die is present, but at least two intermediate dies are present, so that not only two piston parts, but for example three or more piston parts can be produced simultaneously during a single forging process.
- Conceivable here is in particular the simultaneous production of a piston upper part, a piston lower part and an intermediate piston part with corresponding
- Cooling channel structures which are arranged between the piston upper part and the piston lower part.
- the method according to the invention can produce a wide variety of types of pistons in terms of manufacturing technology and at low cycle times, whereby the individual piston parts produced by the method according to the invention can, of course, be subjected to further processing steps, such as turning. In a subsequent manufacturing step will be The piston parts are then joined together to form a piston, for example connected to one another via a friction-welded connection.
- FIG. 1 shows a forging device according to the invention with an upper die, an intermediate die and a lower die in the left-hand illustration in the open position and in the right-hand representation in the closed position for producing a piston upper part and a piston lower part, a representation as in FIG. 1, but with a structurally identical upper - and lower die for the production of two identical piston lower parts.
- Schnniedevorraum 1 for the simultaneous production of a first piston part 2, for example a piston upper part, and a second piston part 3, for example, a piston lower part, a top die 4, an intermediate die 5 and 6 in lower die.
- a first piston part 2 for example a piston upper part
- a second piston part 3 for example, a piston lower part
- a top die 4 for example, a piston lower part
- an intermediate die 5 and 6 in lower die.
- the upper die 4 is designed differently than the lower die 5 whereas, according to FIG. 2, the upper die 4 and the lower die 6 have the same design and are only rotated by 180 ° with respect to one another.
- the two piston parts 2, 3 are produced in accordance with a method according to the invention, in which the forging device 1 according to the invention is used.
- the upper die 4 and the lower die 6 are first moved apart so that 5 free spaces are created between them and the intermediate die 5 arranged therebetween.
- a first billet 2 ' for example, a steel or
- two separate piston parts 2, 3 are forged in a single working step, which can be pre-formed or finished on both sides.
- the first and the second piston part 2, 3 may have a different configuration, or be of identical construction, as shown for example in accordance with FIG.
- the method according to the invention can be referred to as so-called "double forging with intermediate die”.
- piston parts 2, 3 After removal of the two pre-formed or finished piston parts 2, 3 from the forging apparatus 1, these can of course be further processed, that is, for example, subjected to a further manufacturing step, in particular they can be rotated or ground. Subsequently, the two piston parts 2, 3, if this is a piston upper part associated with a piston lower part, connected to each other, in particular welded together.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Forging (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011077088A DE102011077088A1 (de) | 2011-06-07 | 2011-06-07 | Verfahren zur gleichzeitigen Herstellung eines ersten und zweiten Kolbenteils |
PCT/EP2012/060367 WO2012168150A1 (de) | 2011-06-07 | 2012-06-01 | Verfahren zur gleichzeitigen herstellung eines ersten und zweiten kolbenteils |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2718056A1 true EP2718056A1 (de) | 2014-04-16 |
Family
ID=46208033
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12725403.5A Withdrawn EP2718056A1 (de) | 2011-06-07 | 2012-06-01 | Verfahren zur gleichzeitigen herstellung eines ersten und zweiten kolbenteils |
Country Status (6)
Country | Link |
---|---|
US (1) | US9656320B2 (de) |
EP (1) | EP2718056A1 (de) |
CN (1) | CN103582541A (de) |
BR (1) | BR112013031229A2 (de) |
DE (1) | DE102011077088A1 (de) |
WO (1) | WO2012168150A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014211401A1 (de) * | 2013-06-14 | 2014-12-18 | Ks Kolbenschmidt Gmbh | Substitution der Innenform bei einem Kolben für eine Brennkraftmaschine |
JP6452052B2 (ja) * | 2013-08-29 | 2019-01-16 | テネコ・インコーポレイテッドTenneco Inc. | 完全なスカートを伴う二重溶接された鋼ピストン |
CN111604455A (zh) * | 2020-05-27 | 2020-09-01 | 浙江跃进机械有限公司 | 一种钢质活塞锻造模具 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE974022C (de) | 1955-06-19 | 1960-08-18 | Mahle Kg | Verfahren zum gleichzeitigen Herstellen von zwei Topfkolben |
US4128370A (en) * | 1977-05-12 | 1978-12-05 | Fred M. Dellorfano, Jr. And Donald P. Massa, Trustees, The Stoneleigh Trust | Manufacture of electroacoustic transducers which require molding an elastomer to the surface of the transducer material |
JPS6228039A (ja) * | 1985-07-29 | 1987-02-06 | Mitsubishi Heavy Ind Ltd | 多段式の鍛造プレス |
JPS63171237A (ja) * | 1987-01-09 | 1988-07-15 | Toyota Motor Corp | 鍛造加工方法 |
JPH0441035A (ja) * | 1990-06-07 | 1992-02-12 | Kubota Corp | アルミ製ピストンの成形装置 |
JPH08280420A (ja) * | 1995-04-17 | 1996-10-29 | Ykk Kk | 交差状に連結された2個の環状部材の同時成形用金型装置 |
JP2003035198A (ja) * | 2001-07-23 | 2003-02-07 | Showa Denko Kk | 内燃機関用ピストンおよびその製造方法 |
DE10154117A1 (de) * | 2001-11-03 | 2003-05-22 | Elotherm Gmbh | Verfahren und Vorrichtung zum Schmieden von Werkstücken aus im teilerstarrtem Zustand befindlichen metallischen Werkstoffen |
EP1371476A1 (de) * | 2002-02-15 | 2003-12-17 | R+S Technik GmbH | Vorrichtung zum Herstellen von Innenverkleidungsteilen für Kraftfahrzeuge |
DE10244513A1 (de) * | 2002-09-25 | 2004-04-08 | Mahle Gmbh | Mehrteiliger gekühlter Kolben für einen Verbrennungsmotor und Verfahren zu dessen Herstellung |
US7578229B2 (en) | 2006-12-01 | 2009-08-25 | Karl Schmidt Unisia, Inc. | Piston produced from a single forged or cast piston blank |
DE102008056203A1 (de) * | 2008-11-06 | 2010-05-12 | Mahle International Gmbh | Mehrteiliger Kolben für einen Verbrennungsmotor und Verfahren zu seiner Herstellung |
IT1395741B1 (it) * | 2009-09-15 | 2012-10-19 | Mecolpress S P A | Apparecchiatura per lo stampaggio pezzo con sbozzatura e finitura coniatura simultanea al bilanciere e pressa. |
CN201720380U (zh) * | 2010-06-03 | 2011-01-26 | 无锡职业技术学院 | 一种活塞锻造模具 |
-
2011
- 2011-06-07 DE DE102011077088A patent/DE102011077088A1/de not_active Withdrawn
-
2012
- 2012-06-01 WO PCT/EP2012/060367 patent/WO2012168150A1/de active Application Filing
- 2012-06-01 CN CN201280027005.2A patent/CN103582541A/zh active Pending
- 2012-06-01 EP EP12725403.5A patent/EP2718056A1/de not_active Withdrawn
- 2012-06-01 BR BR112013031229A patent/BR112013031229A2/pt not_active IP Right Cessation
- 2012-06-06 US US13/490,203 patent/US9656320B2/en not_active Expired - Fee Related
Non-Patent Citations (2)
Title |
---|
None * |
See also references of WO2012168150A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN103582541A (zh) | 2014-02-12 |
DE102011077088A1 (de) | 2012-12-13 |
US9656320B2 (en) | 2017-05-23 |
BR112013031229A2 (pt) | 2017-01-31 |
WO2012168150A1 (de) | 2012-12-13 |
US20130092024A1 (en) | 2013-04-18 |
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Legal Events
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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Effective date: 20131114 |
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GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
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RIC1 | Information provided on ipc code assigned before grant |
Ipc: B21K 1/18 20060101ALI20170621BHEP Ipc: B21J 13/02 20060101AFI20170621BHEP Ipc: B23P 15/10 20060101ALI20170621BHEP Ipc: F02F 3/00 20060101ALI20170621BHEP Ipc: F16J 1/00 20060101ALI20170621BHEP Ipc: B21J 5/02 20060101ALI20170621BHEP |
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INTG | Intention to grant announced |
Effective date: 20170713 |
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STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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18D | Application deemed to be withdrawn |
Effective date: 20171124 |