DE4024381C2 - Pistons for internal combustion engines with forged areas made of steel - Google Patents
Pistons for internal combustion engines with forged areas made of steelInfo
- Publication number
- DE4024381C2 DE4024381C2 DE19904024381 DE4024381A DE4024381C2 DE 4024381 C2 DE4024381 C2 DE 4024381C2 DE 19904024381 DE19904024381 DE 19904024381 DE 4024381 A DE4024381 A DE 4024381A DE 4024381 C2 DE4024381 C2 DE 4024381C2
- Authority
- DE
- Germany
- Prior art keywords
- steel
- pistons
- internal combustion
- combustion engines
- areas made
- 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.)
- Expired - Fee Related
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
-
- 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
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2201/00—Metals
- F05C2201/02—Light metals
- F05C2201/021—Aluminium
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2201/00—Metals
- F05C2201/04—Heavy metals
- F05C2201/0403—Refractory metals, e.g. V, W
- F05C2201/0406—Chromium
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2201/00—Metals
- F05C2201/04—Heavy metals
- F05C2201/0403—Refractory metals, e.g. V, W
- F05C2201/0409—Molybdenum
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2201/00—Metals
- F05C2201/04—Heavy metals
- F05C2201/0433—Iron group; Ferrous alloys, e.g. steel
- F05C2201/0448—Steel
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Description
Die Erfindung betrifft einen Kolben für Verbrennungsmotoren mit geschmiedeten Bereichen aus Stahl nach dem Oberbegriff des Patentanspruchs.The invention relates to a piston for internal combustion engines with forged areas made of steel according to the generic term of the claim.
Als Stahlwerkstoff wurde bisher überwiegend der vergütete Chrom-Molybdän-Stahl 42CrMo4 eingesetzt. Er gilt für diesen Einsatzbereich als ein sehr guter Kompromiss in bezug auf seine Umformbarkeit, seine Festigkeitseigenschaften, Bear beitbarkeit, Härtbarkeit und Kosten.Up to now, the tempered material has predominantly been the steel material Chromium-molybdenum steel 42CrMo4 used. It applies to this Application area as a very good compromise in terms of its formability, its strength properties, Bear processability, hardenability and costs.
Hiervon ausgehend liegt der Erfindung die Aufgabe zugrunde, einen kostengünstigeren, insbesondere kostengünstiger zu verarbeitenden, Werkstoff mit vergleichbar guten Eigen schaften einzusetzen.Proceeding from this, the object of the invention is a less expensive, in particular less expensive processing, material with comparable good properties insert shafts.
Gelöst wird diese Aufgabe durch die Verwendung eines aus scheidungshärtenden ferritisch-perlitischen Stahles in der Zusammensetzung nach dem kennzeichnendem Merkmal des Pa tentanspruchs.This task is solved by using one separating hardening ferritic-pearlitic steel in the Composition according to the characteristic feature of Pa entitlement.
Aus der lediglich ein älteres Recht darstellenden DE 41 09 628 C2 sind gattungsgemäße Kolben bekannt, bei denen Stahlwerkstoffe gemäß Stahl-Eisen-Werkstoffblatt 101 einge setzt werden. Diesem Umstand wurde durch entsprechende An spruchsformulierung Rechnung getragen. From the DE, which merely represents an older right 41 09 628 C2 generic pistons are known, in which Steel materials according to steel-iron material sheet 101 inserted be set. This fact was confirmed by the corresponding An wording taken into account.
Aus der DE 37 19 569 A1 sind erfindungsgemäße Werkstoffe und deren Verwendung für Bauteile im Automobilbau bekannt.DE 37 19 569 A1 describes materials according to the invention and their use for components in automotive engineering.
Außerdem ist aus der DE 39 35 091 A1 ein Gelenkkolben be kannt, der ein Kopfteil aus Stahl und einen Kolbenschaft aus einer Aluminiumlegierung aufweist.In addition, from DE 39 35 091 A1 an articulated piston be knows who has a steel headboard and a piston skirt made of an aluminum alloy.
Die erfindungsgemäß vorgeschlagenen Stähle eignen sich be sonders für den Einsatz bei Gelenkkolben, bei denen der Kolbenkopf mit den Naben lediglich über den Kolbenbolzen mit dem Kolbenschaft verbunden ist.The steels proposed according to the invention are suitable especially for use with articulated pistons where the Piston head with the hubs only over the piston pin is connected to the piston skirt.
Ein weiteres Einsatzgebiet sind Kolben, bei denen der Kol benboden aus Stahl und über Schrauben mit dem Kolbenunter teil fest verbunden ist.Another area of application is pistons, in which the col steel base and screws with the piston bottom part is firmly connected.
Claims (1)
C = 0,32-0,45
Si = 0,4-0,9
Mn = 1,0-1,8
P bis zu 0,035
S bis zu 0,065
V = 0,06-0,15Pistons for internal combustion engines with forged areas made of a precipitation-hardening ferritic-pearlitic steel and areas made of light metal, characterized by the following composition of the steel with the exception of AFP steels according to steel-iron material sheet 101:
C = 0.32-0.45
Si = 0.4-0.9
Mn = 1.0-1.8
P up to 0.035
S up to 0.065
V = 0.06-0.15
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19904024381 DE4024381C2 (en) | 1990-08-01 | 1990-08-01 | Pistons for internal combustion engines with forged areas made of steel |
US07/728,255 US5136992A (en) | 1990-07-12 | 1991-07-11 | Piston for internal combustion engines with forged sections made of steel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19904024381 DE4024381C2 (en) | 1990-08-01 | 1990-08-01 | Pistons for internal combustion engines with forged areas made of steel |
Publications (2)
Publication Number | Publication Date |
---|---|
DE4024381A1 DE4024381A1 (en) | 1992-02-06 |
DE4024381C2 true DE4024381C2 (en) | 1999-01-28 |
Family
ID=6411421
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19904024381 Expired - Fee Related DE4024381C2 (en) | 1990-07-12 | 1990-08-01 | Pistons for internal combustion engines with forged areas made of steel |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE4024381C2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013009209A1 (en) | 2013-05-31 | 2014-03-27 | Daimler Ag | Producing piston for internal combustion engine by welding two components made of steel with each other using welding unit, forming rotationally symmetrical weld seam, and pre-heating portions of components using heat treatment unit |
DE102014001806A1 (en) | 2014-02-11 | 2014-08-28 | Daimler Ag | Manufacturing piston useful for an internal combustion engine, comprises welding at least two components with each other by a weld seam, in which at least one of components to be welded, is formed from steel having specific carbon content |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19910582A1 (en) * | 1999-03-10 | 2000-09-28 | Mahle Gmbh | Built piston |
DE102012009030A1 (en) * | 2012-05-05 | 2013-11-07 | Mahle International Gmbh | Arrangement of a piston and a crankcase for an internal combustion engine |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3719569A1 (en) * | 1986-07-05 | 1988-01-21 | Thyssen Edelstahlwerke Ag | MICROALLOY STEEL AND ITS USE |
DE3935091A1 (en) * | 1988-10-26 | 1990-05-03 | Metal Leve Sa | TWO-PIECE PISTON |
DE4109628C2 (en) * | 1990-07-12 | 1997-04-17 | Mahle Gmbh | Use of a precipitation hardening ferritic pearlitic steel |
-
1990
- 1990-08-01 DE DE19904024381 patent/DE4024381C2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3719569A1 (en) * | 1986-07-05 | 1988-01-21 | Thyssen Edelstahlwerke Ag | MICROALLOY STEEL AND ITS USE |
DE3935091A1 (en) * | 1988-10-26 | 1990-05-03 | Metal Leve Sa | TWO-PIECE PISTON |
DE4109628C2 (en) * | 1990-07-12 | 1997-04-17 | Mahle Gmbh | Use of a precipitation hardening ferritic pearlitic steel |
Non-Patent Citations (1)
Title |
---|
Stahl-Eisen-Werkstoffblatt, SEW 101 v. Okt. 1988 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013009209A1 (en) | 2013-05-31 | 2014-03-27 | Daimler Ag | Producing piston for internal combustion engine by welding two components made of steel with each other using welding unit, forming rotationally symmetrical weld seam, and pre-heating portions of components using heat treatment unit |
DE102014001806A1 (en) | 2014-02-11 | 2014-08-28 | Daimler Ag | Manufacturing piston useful for an internal combustion engine, comprises welding at least two components with each other by a weld seam, in which at least one of components to be welded, is formed from steel having specific carbon content |
Also Published As
Publication number | Publication date |
---|---|
DE4024381A1 (en) | 1992-02-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8110 | Request for examination paragraph 44 | ||
D2 | Grant after examination | ||
8363 | Opposition against the patent | ||
8365 | Fully valid after opposition proceedings | ||
8339 | Ceased/non-payment of the annual fee |