EP0934781A2 - Verfahren zum Herstellen einer Zylinderlaufbuchse - Google Patents
Verfahren zum Herstellen einer Zylinderlaufbuchse Download PDFInfo
- Publication number
- EP0934781A2 EP0934781A2 EP98121662A EP98121662A EP0934781A2 EP 0934781 A2 EP0934781 A2 EP 0934781A2 EP 98121662 A EP98121662 A EP 98121662A EP 98121662 A EP98121662 A EP 98121662A EP 0934781 A2 EP0934781 A2 EP 0934781A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- cast
- cylinder liner
- liner
- tubular body
- rolling process
- 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
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B19/00—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work
- B21B19/12—Tube-rolling by rollers arranged outside the work and having their axes not perpendicular to the axis of the work the axes of the rollers being arranged essentially parallel to the axis of the work
- B21B19/16—Rolling tubes without additional rollers arranged inside the tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H1/00—Making articles shaped as bodies of revolution
- B21H1/06—Making articles shaped as bodies of revolution rings of restricted axial length
Definitions
- the invention relates to a method for producing a Cylinder liner made of hypereutectic aluminum-silicon alloy, that when casting a cylinder block Light alloy is also cast in.
- the present invention is the Task based on a method for producing Cylinder liners made of hypereutectic aluminum-silicon alloy to specify the simpler and is more cost-effective than the known one Method.
- This task is initiated in a procedure mentioned type solved according to the invention in that initially a tubular body made of the hypereutectic aluminum-silicon alloy is poured and that this tubular bodies then without cutting at temperatures between 380 and 515 ° C in a pressure rolling process is deformed.
- the invention surprisingly found that on the costly process of No spray compacting and instead a simple one Casting process used to manufacture tubular bodies can be if the tubular body subsequently in a pressure rolling process in the specified temperature range is deformed and not as in the prior art is extruded and then forged round.
- a pressure rolling process in that also tubular bodies with opposite to the Spray compacting process for larger silicon primary deposits with very low destruction rate can be further processed or further processed. It is therefore possible to make a bushing blank hypereutectic aluminum-silicon alloy in one easy-to-pour casting process, shedding as a result of the spray compacting process lower cooling rate, larger silicon primary deposits form.
- this is not a problem Problems because different from the state of the art subsequently no extrusion process and subsequent Round forging process is used, but the cast tubular body are pressed rolled.
- the silicon primary excretions of the invention cylinder liners manufactured are 90% with a Particle dimensions from 5 to 60 ⁇ m.
- the vast majority The proportion of the particles has a size of 10 to 40 ⁇ m.
- This relatively large silicon primary deposits compared to those produced in the spray compacting process Blanks have no effect on the subsequent pressure rolling noticeably disadvantageous.
- the tubular body be lengthened by a factor of 5 to 7.
- the elongated body can then be the length of the Corresponding longitudinal segments separated from the cylinder liner or tapped and, if necessary, with bundles or Bevels.
- Figure 1 shows a pressure rolling arrangement with a cylindrical mandrel 2 on which a previously made hypereutectic cast aluminum-silicon alloy tubular body 4 is pushed on.
- the Spinning roll arrangement further comprises three controlled separately deliverable heatable pressure rollers 6. After The rollers and the mandrel are fed in same or opposite rotating movement and heated to operating temperatures of 430 to 510 ° C. This can elongate the cast tubular Body to the final dimensions of the manufactured Cylinder liner can be reached. The resultant elongated pipe is then divided into longitudinal sections, whose length corresponds to the length of the one to be manufactured Cylinder liners is selected. The cylinder liners can then with the light alloy Cylinder blocks are cast.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
Description
- die Figur
- eine schematische Ansicht einer Drückwalzanordnung.
Claims (4)
- Verfahren zum Herstellen einer Zylinderlaufbuchse aus übereutektischer Aluminium-Silizium-Legierung, die beim Gießen eines Zylinderblocks aus Leichtmetalllegierung miteingegossen wird, dadurch gekennzeichnet, dass zunächst ein rohrförmiger Körper (4) aus der übereutektischen Aluminium-Silizium-Legierung gegossen wird und dass dieser rohrförmige Körper anschließend spanlos bei Temperaturen zwischen 380 und 515 °C in einem Drückwalzverfahren verformt wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass beim Verformen im Drückwalzverfahren die schlussendlichen Innen- und Außendurchmesser der Zylinderlaufbuchse hergestellt werden.
- Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass beim Verformen im Drückwalzverfahren eine die Ausbildung einer Verklammerung der Laufbüchse in dem Umguß erleichternde Oberflächenstruktur erzeugt wird.
- Verfahren nach Anspruch 1, 2 oder 3, dadurch gekennzeichnet, dass von dem drückgewalzten rohrförmigen Körper (4) Längsabschnitte abgetrennt werden, wobei jedes Längssegment eine Zylinderlaufbuchse bildet.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19750686 | 1997-11-15 | ||
DE19750686A DE19750686C1 (de) | 1997-11-15 | 1997-11-15 | Verfahren zum Herstellen einer Zylinderlaufbuchse |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0934781A2 true EP0934781A2 (de) | 1999-08-11 |
EP0934781A3 EP0934781A3 (de) | 2000-07-26 |
EP0934781B1 EP0934781B1 (de) | 2003-02-26 |
Family
ID=7848853
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98121662A Expired - Lifetime EP0934781B1 (de) | 1997-11-15 | 1998-11-13 | Verfahren zum Herstellen einer Zylinderlaufbuchse |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0934781B1 (de) |
DE (2) | DE19750686C1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111618153A (zh) * | 2020-03-01 | 2020-09-04 | 浙江长兴和良智能装备有限公司 | 一种旋压加工方法及旋压加工系统 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19918230C2 (de) * | 1999-04-22 | 2001-06-28 | Daimler Chrysler Ag | Verfahren zum Herstellen eines aus einer übereutektischen Aluminium-Silizium-Legierung bestehenden, rohrförmigen Rohlings einer Zylinderlaufbüchse |
DE10012787B4 (de) * | 2000-03-16 | 2008-04-10 | Volkswagen Ag | Verfahren zur Herstellung von Leichtmetallgussteilen mit eingegossenen Buchsen |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2854958A1 (de) * | 1978-12-20 | 1980-07-10 | Daimler Benz Ag | Verfahren zum herstellen von zylinderbloecken fuer verbrennungskraftmaschinen durch verbundgiessen unterschiedlicher aluminium-legierungen |
DE3744095A1 (de) * | 1987-12-24 | 1989-07-13 | Josef Dipl In Ehrenschwendtner | Verfahren zur herstellung von zylinderlaufbuechsen |
EP0704613A1 (de) * | 1994-09-28 | 1996-04-03 | KS Aluminium Technologie Aktiengesellschaft | Verbundgusszylinder oder -zylinderblock |
DE19523484A1 (de) * | 1995-06-28 | 1997-01-02 | Daimler Benz Ag | Zylinderlaufbüchse aus einer übereutektischen Aluminium/Silizium-Legierung zum Eingießen in ein Kurbelgehäuse einer Hubkolbenmaschine und Verfahren zur Herstellung einer solchen Zylinderlaufbüchse |
DE19532244A1 (de) * | 1995-09-01 | 1997-03-06 | Peak Werkstoff Gmbh | Verfahren zur Herstellung von dünnen Rohren (I) |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT359662B (de) * | 1979-03-16 | 1980-11-25 | Steyr Daimler Puch Ag | Verfahren zum herstellen von zylindern fuer zweitaktmotoren |
ES538913A0 (es) * | 1984-12-05 | 1985-10-01 | Mediterraneo Ind | Perfeccionamientos en el proceso de fabricacion de cilindros inyectados en alta presion en aleacion de aluminio |
DE4307775A1 (de) * | 1993-03-12 | 1994-09-15 | Dynamit Nobel Ag | Verfahren und Vorrichtung zur Herstellung von hochfesten Rohren |
DE19532252C2 (de) * | 1995-09-01 | 1999-12-02 | Erbsloeh Ag | Verfahren zur Herstellung von Laufbuchsen |
JP3016364B2 (ja) * | 1995-12-04 | 2000-03-06 | トヨタ自動車株式会社 | 内燃機関のシリンダブロック製造方法 |
-
1997
- 1997-11-15 DE DE19750686A patent/DE19750686C1/de not_active Expired - Lifetime
-
1998
- 1998-11-13 DE DE59807308T patent/DE59807308D1/de not_active Expired - Lifetime
- 1998-11-13 EP EP98121662A patent/EP0934781B1/de not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2854958A1 (de) * | 1978-12-20 | 1980-07-10 | Daimler Benz Ag | Verfahren zum herstellen von zylinderbloecken fuer verbrennungskraftmaschinen durch verbundgiessen unterschiedlicher aluminium-legierungen |
DE3744095A1 (de) * | 1987-12-24 | 1989-07-13 | Josef Dipl In Ehrenschwendtner | Verfahren zur herstellung von zylinderlaufbuechsen |
EP0704613A1 (de) * | 1994-09-28 | 1996-04-03 | KS Aluminium Technologie Aktiengesellschaft | Verbundgusszylinder oder -zylinderblock |
DE19523484A1 (de) * | 1995-06-28 | 1997-01-02 | Daimler Benz Ag | Zylinderlaufbüchse aus einer übereutektischen Aluminium/Silizium-Legierung zum Eingießen in ein Kurbelgehäuse einer Hubkolbenmaschine und Verfahren zur Herstellung einer solchen Zylinderlaufbüchse |
DE19532244A1 (de) * | 1995-09-01 | 1997-03-06 | Peak Werkstoff Gmbh | Verfahren zur Herstellung von dünnen Rohren (I) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111618153A (zh) * | 2020-03-01 | 2020-09-04 | 浙江长兴和良智能装备有限公司 | 一种旋压加工方法及旋压加工系统 |
CN113909367A (zh) * | 2020-03-01 | 2022-01-11 | 浙江长兴和良智能装备有限公司 | 一种缩口式旋压加工系统及缩口式多爪旋压机头 |
CN111618153B (zh) * | 2020-03-01 | 2022-04-12 | 浙江长兴和良智能装备有限公司 | 一种旋压加工方法及旋压加工系统 |
CN113909367B (zh) * | 2020-03-01 | 2023-06-23 | 浙江长兴和良智能装备有限公司 | 一种缩口式多爪旋压机头 |
Also Published As
Publication number | Publication date |
---|---|
EP0934781A3 (de) | 2000-07-26 |
EP0934781B1 (de) | 2003-02-26 |
DE19750686C1 (de) | 1999-09-23 |
DE59807308D1 (de) | 2003-04-03 |
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Inventor name: BOEHM, HELMUT Inventor name: JELENAK, HEINER, DIPL.-ING. Inventor name: LAUDENKLOS, MANFRED, DIPL.-ING. Inventor name: MOEDING, HERBERT, DR.-ING. |
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