WO2006056183A1 - Verfahren zur herstellung eines kolbens für einen verbrennungsmotor - Google Patents
Verfahren zur herstellung eines kolbens für einen verbrennungsmotor Download PDFInfo
- Publication number
- WO2006056183A1 WO2006056183A1 PCT/DE2005/002108 DE2005002108W WO2006056183A1 WO 2006056183 A1 WO2006056183 A1 WO 2006056183A1 DE 2005002108 W DE2005002108 W DE 2005002108W WO 2006056183 A1 WO2006056183 A1 WO 2006056183A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- piston
- producing
- aluminum
- faserpreform
- copper melt
- 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.)
- Ceased
Links
Classifications
-
- 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
- F02F3/26—Pistons having combustion chamber in piston head
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/0009—Cylinders, pistons
- B22D19/0027—Cylinders, pistons pistons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/14—Casting in, on, or around objects which form part of the product the objects being filamentary or particulate in form
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
- F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
- F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
- F02B23/0603—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston at least part of the interior volume or the wall of the combustion space being made of material different from the surrounding piston part, e.g. combustion space formed within a ceramic part fixed to a metal piston head
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B23/00—Other engines characterised by special shape or construction of combustion chambers to improve operation
- F02B23/02—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition
- F02B23/06—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston
- F02B23/0636—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston the combustion space having a substantially flat and horizontal bottom
- F02B23/0639—Other engines characterised by special shape or construction of combustion chambers to improve operation with compression ignition the combustion space being arranged in working piston the combustion space having a substantially flat and horizontal bottom the combustion space having substantially the shape of a cylinder
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
-
- 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
-
- 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
- Y10T29/49252—Multi-element piston making
-
- 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
- Y10T29/49252—Multi-element piston making
- Y10T29/49254—Utilizing a high energy beam, e.g., laser, electron beam
-
- 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
- Y10T29/49256—Piston making with assembly or composite article making
- Y10T29/49259—Piston making with assembly or composite article making with fiber reinforced structure
Definitions
- the invention relates to a method for producing a piston for a Verbren ⁇ tion engine with a combustion bowl, wherein an annular Faserpreform, which is intended to reinforce the edge of the combustion bowl, is attached in the G man ⁇ form, then a siiiziumarme aluminum-copper melt into the casting mold initiating such a pressure differential between the aluminum-copper ingot and the fiber preform that the fiber preform is completely infiltrated by the aluminum-copper melt, thereby molding the fiber preform into the bowl rim.
- FIG. 1 is a plan view of the bottom of a piston produced by the process according to the invention.
- FIG. 2 shows a two-part section along the axis of the piston, wherein the left half of the figure shows a section through the piston along the hub axis B and the right half of the figure shows a section along an axis A perpendicular thereto.
- a largely silicon-free aluminum-copper alloy is used, which may be composed as follows, the figures indicating the percentages by weight of the individual alloy constituents:
- Another alloy suitable for producing the piston 1 by the process according to the invention consists of the following constituents: ( Figures are by weight)
- a casting method is used, with the aid of which the edge of the combustion bowl 2 is reinforced by means of a fiber preform 3 and the piston 1 can also be provided with a ring carrier 4 for a compression ring.
- This casting process must have the property of producing a sufficiently large pressure difference between the melt and the fiber preform 3 so that the fiber preform 3 is completely infiltrated with the melt used during casting before it solidifies. Thereafter, both the individual fibers of Faserpreform 3 are firmly connected to the solidified melt and the Faserpreform 3 itself firmly with the remaining piston 1.
- the fibers of the fiber preform 3 are formed as short fibers of a ceramic material, for example of aluminum oxide.
- the fiber preform 3 in the form of an annular body with a rectangular cross-section is produced by initially treating the fibers to give an aqueous suspension containing a binder. Subsequently, the suspension is filled into a water-permeable, the shape of the Faserpreform 3 corresponding form in which the water is separated from the suspension. The resulting body in the form of Faserpreform 3 is dried and can be mechanically repressed to improve its strength.
- the aim here is a proportion of fibers per unit volume of 10% to 20%.
- the direct liquid presses first the fiber preform 3 and the ring carrier 4 are inserted into a stationary casting mold and fixed.
- the fiber preform 3 comes to lie coaxially with the piston axis 10 and in the plane of the piston crown 5, and the ring carrier 4 is positioned coaxially with the piston axis 10 and in a distance corresponding to the axial length of the firing land 6 from the piston crown 5.
- molten aluminum melt is filled into the casting mold and an axially movable casting core is sunk into the casting mold, which initially closes the casting mold and then exerts pressure on the slowly solidifying melt.
- the pressure exerted on the aluminum melt causes the fiber preform 3 to be infiltrated by the melt.
- the pressure exerted on the melt leads to a reduction in the porosity of the solidified aluminum. This can result in a sufficient strength of the Kolben ⁇ material for certain purposes.
- a further casting method with the name "RMD casting method”, a abbreviation for “robot aided medium pressure diecasting”, is likewise well suited for producing the piston according to the invention.
- the ring carrier 4 is fixed in the mold at the designated location.
- the mold is closed with a lid, which has a plurality of radially outer suction pipes, which are connected to a vacuum pump and open at such points in the interior of the mold, that at the openings of Saug ⁇ pipes the Faserpreform 3 is applied and of the in The vacuum prevailing in the tubes is kept at the designated place.
- the aluminum-copper melt is then introduced into the casting mold via a feed opening arranged centrally in the lid, the vacuum prevailing in the tubes ensuring that the fiber preform 3 held by the suction tubes is infiltrated by the melt.
- the feed opening is connected to a compressed air line, via which after filling the mold with the melt air at high pressure into the mold which results in that the porosity of the solidified aluminum-copper alloy is reduced, resulting in a sufficient strength of the piston for certain purposes.
- the cast piston blank is subsequently densified by hot isostatic pressing (HIP).
- HIP hot isostatic pressing
- the piston is placed in an autoclave into which gas with a temperature of 400 ° C to 600 ° C and with a pressure of 700 to 1000 bar is pressed. After a holding time of about 4 to 6 hours, the compression process of the piston material is completed, and the piston 1 has a dense material structure without porosity in the areas below the casting surface.
- the piston blank is given the final shape shown in FIG. 2 by means of a machining process.
- the flanks and the base surfaces of the second and the third annular groove 7 and 8, which are particularly heavily loaded in a diesel piston, can be wear-resistant on the way of anodic oxidation Be provided coating.
- the method of selective coating is used, the piston areas which are not to be coated being covered.
- the entire piston is covered with the exception of the 2nd and 3rd annular groove 7 and 8 with a cover layer, after which the piston 1 is connected to the positive pole of a DC power source and immersed in an electrolyte, such as sulfuric acid.
- an electrolyte such as sulfuric acid.
- one or more, connected to the negative pole of the DC power source cathodes are immersed in the electrolyte.
- the hub bores 9 are also particularly stressed in the case of diesel pistons.
- a remedy for this is the method of rolling for fine machining of the hub bores 9, which is particularly suitable for pistons made of a low-silicon aluminum-copper alloy.
- one or more rollers are acted upon by a force directed approximately perpendicular to the hub tread and moved over the tread. As a result, even the smallest bumps of the hub tread are smoothed.
- this compressive stresses are introduced into the material, whereby the strength of the hub inner surface is improved.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Abstract
Description
Claims
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007541681A JP5145046B2 (ja) | 2004-11-24 | 2005-11-23 | 内燃機関のためのピストンを製作する方法 |
| US11/791,376 US8011095B2 (en) | 2004-11-24 | 2005-11-23 | Method for producing a piston for an internal combustion engine |
| BRPI0517892A BRPI0517892B1 (pt) | 2004-11-24 | 2005-11-23 | processo para a produção de um pistão para um motor de combustão |
| CN2005800401133A CN101065568B (zh) | 2004-11-24 | 2005-11-23 | 制造内燃机用的活塞的方法 |
| EP05815874.2A EP1815124B1 (de) | 2004-11-24 | 2005-11-23 | Verfahren zur herstellung eines kolbens fuer einen verbrennungsmotor |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004056519.8A DE102004056519B4 (de) | 2004-11-24 | 2004-11-24 | Verfahren zur Herstellung eines Kolbens für einen Verbrennungsmotor |
| DE102004056519.8 | 2004-11-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2006056183A1 true WO2006056183A1 (de) | 2006-06-01 |
Family
ID=36124043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE2005/002108 Ceased WO2006056183A1 (de) | 2004-11-24 | 2005-11-23 | Verfahren zur herstellung eines kolbens für einen verbrennungsmotor |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US8011095B2 (de) |
| EP (1) | EP1815124B1 (de) |
| JP (1) | JP5145046B2 (de) |
| CN (1) | CN101065568B (de) |
| BR (1) | BRPI0517892B1 (de) |
| DE (1) | DE102004056519B4 (de) |
| WO (1) | WO2006056183A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011006753A1 (de) * | 2009-07-13 | 2011-01-20 | Federal-Mogul Nürnberg GmbH | Verfahren und vorrichtung zur bearbeitung eines kolbens für einen verbrennungsmotor |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008031863A1 (de) * | 2008-07-05 | 2010-01-07 | Mahle International Gmbh | Einlegeteil für einen Kolben eines Verbrennungsmotors sowie mit dem Einlegeteil versehener Kolben oder Kolbenkopf |
| US9856820B2 (en) | 2010-10-05 | 2018-01-02 | Mahle International Gmbh | Piston assembly |
| DE102011083994A1 (de) * | 2010-10-05 | 2012-04-05 | Ks Kolbenschmidt Gmbh | Verbesserungen an einem Brennraummuldenrand und an einem Brennraummuldengrund eines Kolbens einer Brennkraftmaschine |
| JP5724373B2 (ja) * | 2010-12-24 | 2015-05-27 | いすゞ自動車株式会社 | アルミニウム合金複合材料ピストン、それを備えた内燃機関、及び、アルミニウム合金複合材料ピストンの製造方法。 |
| DE102011005656A1 (de) * | 2011-03-16 | 2012-09-20 | Man Diesel & Turbo Se | Kraftstoffpumpe |
| US8973484B2 (en) | 2011-07-01 | 2015-03-10 | Mahle Industries Inc. | Piston with cooling gallery |
| CN103846409B (zh) * | 2012-12-04 | 2016-03-23 | 中国兵器科学研究院宁波分院 | 一种带冷却油腔的船用纤维增强复合材料活塞的制备方法 |
| CN103042195B (zh) * | 2012-12-25 | 2014-10-29 | 北方材料科学与工程研究院有限公司 | 一种伪合金增强环槽活塞的挤压铸造制造方法 |
| BR102013019686B1 (pt) * | 2013-08-01 | 2020-11-03 | Mahle Metal Leve S/A | anel de pistão e seu processo de fabricação |
| DE102013226717A1 (de) * | 2013-12-19 | 2015-06-25 | Mahle International Gmbh | Verfahren zur Herstellung eines Kolbens für einen Verbrennungsmotor |
| DE102014216517A1 (de) * | 2014-08-20 | 2016-02-25 | Mahle International Gmbh | Gießwerkzeug und Verfahren zur Herstellung eines Kolbens für einen Verbrennungsmotor |
| CN105195715A (zh) * | 2015-10-28 | 2015-12-30 | 山东理工大学 | 一种增强销孔的内燃机铝活塞及其制备方法 |
| CN106381809A (zh) * | 2016-11-07 | 2017-02-08 | 北京恒润生工程科技有限公司 | 基于双芯光纤干涉仪的智能拉索及其制备方法 |
| CN108067808B (zh) * | 2016-11-11 | 2019-08-30 | 强莉莉 | 一种钢活塞的再制造方法 |
| DE102018104103A1 (de) * | 2018-02-23 | 2019-08-29 | Man Truck & Bus Ag | Verfahren zum Herstellen eines Bauteils, insbesondere Fahrzeugbauteils, und entsprechend hergestelltes Bauteil |
| US20240051195A1 (en) * | 2021-12-23 | 2024-02-15 | Arris Composites Inc. | Apparatus and Method for Controlling the Alignment of Fiber Loops in Compression Molded Articles |
| CN118162859B (zh) * | 2024-05-16 | 2024-08-13 | 洛阳洛轴工模具制造有限公司 | 一种轴承加工用铜钢双金属电磁吸盘的加工方法 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2921952A1 (de) * | 1979-05-30 | 1980-12-04 | Volkswagenwerk Ag | Aus aluminium oder einer aluminiumlegierung gefertigter kolben fuer eine verbrennungskraftmaschine |
| US4587177A (en) * | 1985-04-04 | 1986-05-06 | Imperial Clevite Inc. | Cast metal composite article |
| JPS62288775A (ja) * | 1986-06-06 | 1987-12-15 | Kobe Steel Ltd | 繊維強化軽合金製ピストン及びその製造方法 |
| JPH02137661A (ja) * | 1988-11-17 | 1990-05-25 | Atsugi Unisia Corp | 繊維強化金属部品の製造方法 |
| US4966221A (en) * | 1983-05-18 | 1990-10-30 | Mazda Motor Corporation | Method of producing aluminum alloy castings and piston made of aluminum alloy |
| EP1138418A2 (de) * | 2000-03-30 | 2001-10-04 | Mazda Motor Corporation | Poröse metallische Vorform und Herstellungsverfahren eines metallischen Verbundbauteils unter Verwendung solcher Vorform |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5893948A (ja) * | 1981-11-30 | 1983-06-03 | Toyota Motor Corp | エンジン用ピストン |
| JPS59212159A (ja) * | 1983-05-18 | 1984-12-01 | Mazda Motor Corp | アルミニウム合金鋳物の製造方法 |
| DE3404121A1 (de) * | 1984-02-07 | 1985-08-08 | M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8900 Augsburg | Waermedaemmender kolben fuer verbrennungskraftmaschinen |
| JPS60190650A (ja) * | 1984-03-13 | 1985-09-28 | Ngk Insulators Ltd | エンジン用ピストンおよびその製造法 |
| DE3430056C1 (de) * | 1984-08-16 | 1986-01-16 | Mahle Gmbh, 7000 Stuttgart | Tauchkolben mit faserverstaerkter Brennraummulde fuer Verbrennungsmotoren |
| US4712600A (en) * | 1985-07-12 | 1987-12-15 | Toyota Jidosha Kabushiki Kaisha | Production of pistons having a cavity |
| JP2678248B2 (ja) * | 1987-11-20 | 1997-11-17 | 本田技研工業株式会社 | ピストンの表面処理方法 |
| JPH0649888B2 (ja) * | 1989-03-24 | 1994-06-29 | 新日本製鐵株式会社 | 表面被覆金属の製造方法 |
| US5115770A (en) * | 1990-11-08 | 1992-05-26 | Ford Motor Company | Aluminum casting alloy for high strength/high temperature applications |
| US5120372A (en) * | 1990-11-08 | 1992-06-09 | Ford Motor Company | Aluminum casting alloy for high strength/high temperature applications |
| GB2294102B (en) * | 1993-12-04 | 1996-06-26 | Ae Goetze Automotive Limited | Fibre-reinforced metal pistons |
| DE19535590A1 (de) * | 1994-09-26 | 1996-04-04 | Unisia Jecs Corp | Kolben für Brennkraftmaschinen und Verfahren zu deren Herstellung |
| JPH08151953A (ja) * | 1994-11-29 | 1996-06-11 | Unisia Jecs Corp | 内燃機関用ピストンおよびその製造方法 |
| DE19724899C2 (de) * | 1997-06-12 | 2000-06-08 | Seilstorfer Gmbh & Co Metallur | Hochwarmfester Magnesiumwerkstoff, insbesondere für den Kolbenbau |
| DE19943153C1 (de) * | 1998-03-19 | 2001-01-25 | Gut Gieserei Umwelt Technik Gm | Gießvorrichtung mit Nachverdichtung |
| JP2000027993A (ja) * | 1998-07-08 | 2000-01-25 | Yamaha Motor Co Ltd | 内燃機関のピストン及びその表面処理方法 |
| DE60032728T2 (de) * | 1999-08-10 | 2007-04-26 | NHK Spring Co., Ltd., Yokohama | Kolben mit einem metallischen verbundwerkstoff |
-
2004
- 2004-11-24 DE DE102004056519.8A patent/DE102004056519B4/de not_active Withdrawn - After Issue
-
2005
- 2005-11-23 US US11/791,376 patent/US8011095B2/en not_active Expired - Fee Related
- 2005-11-23 CN CN2005800401133A patent/CN101065568B/zh not_active Expired - Fee Related
- 2005-11-23 WO PCT/DE2005/002108 patent/WO2006056183A1/de not_active Ceased
- 2005-11-23 BR BRPI0517892A patent/BRPI0517892B1/pt not_active IP Right Cessation
- 2005-11-23 JP JP2007541681A patent/JP5145046B2/ja not_active Expired - Fee Related
- 2005-11-23 EP EP05815874.2A patent/EP1815124B1/de not_active Ceased
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2921952A1 (de) * | 1979-05-30 | 1980-12-04 | Volkswagenwerk Ag | Aus aluminium oder einer aluminiumlegierung gefertigter kolben fuer eine verbrennungskraftmaschine |
| US4966221A (en) * | 1983-05-18 | 1990-10-30 | Mazda Motor Corporation | Method of producing aluminum alloy castings and piston made of aluminum alloy |
| US4587177A (en) * | 1985-04-04 | 1986-05-06 | Imperial Clevite Inc. | Cast metal composite article |
| JPS62288775A (ja) * | 1986-06-06 | 1987-12-15 | Kobe Steel Ltd | 繊維強化軽合金製ピストン及びその製造方法 |
| JPH02137661A (ja) * | 1988-11-17 | 1990-05-25 | Atsugi Unisia Corp | 繊維強化金属部品の製造方法 |
| EP1138418A2 (de) * | 2000-03-30 | 2001-10-04 | Mazda Motor Corporation | Poröse metallische Vorform und Herstellungsverfahren eines metallischen Verbundbauteils unter Verwendung solcher Vorform |
Non-Patent Citations (2)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN vol. 012, no. 179 (M - 701) 26 May 1988 (1988-05-26) * |
| PATENT ABSTRACTS OF JAPAN vol. 014, no. 375 (M - 1010) 14 August 1990 (1990-08-14) * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011006753A1 (de) * | 2009-07-13 | 2011-01-20 | Federal-Mogul Nürnberg GmbH | Verfahren und vorrichtung zur bearbeitung eines kolbens für einen verbrennungsmotor |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102004056519B4 (de) | 2017-07-13 |
| JP2008520880A (ja) | 2008-06-19 |
| DE102004056519A1 (de) | 2006-06-01 |
| US20080209725A1 (en) | 2008-09-04 |
| JP5145046B2 (ja) | 2013-02-13 |
| CN101065568A (zh) | 2007-10-31 |
| BRPI0517892A (pt) | 2008-10-21 |
| EP1815124A1 (de) | 2007-08-08 |
| EP1815124B1 (de) | 2016-01-20 |
| CN101065568B (zh) | 2011-07-06 |
| BRPI0517892B1 (pt) | 2018-11-06 |
| US8011095B2 (en) | 2011-09-06 |
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