EP1252946A2 - Procédé pour la production des pièces à symétrie de rotation - Google Patents
Procédé pour la production des pièces à symétrie de rotation Download PDFInfo
- Publication number
- EP1252946A2 EP1252946A2 EP02002515A EP02002515A EP1252946A2 EP 1252946 A2 EP1252946 A2 EP 1252946A2 EP 02002515 A EP02002515 A EP 02002515A EP 02002515 A EP02002515 A EP 02002515A EP 1252946 A2 EP1252946 A2 EP 1252946A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- tube
- wall thickness
- component
- outer diameter
- rotationally symmetrical
- 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
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K21/00—Making hollow articles not covered by a single preceding sub-group
- B21K21/12—Shaping end portions of hollow articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/15—Making tubes of special shape; Making tube fittings
- B21C37/16—Making tubes with varying diameter in longitudinal direction
-
- 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
- B21K1/06—Making machine elements axles or shafts
- B21K1/12—Making machine elements axles or shafts of specially-shaped cross-section
-
- 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
- Y10T29/49826—Assembling or joining
- Y10T29/49945—Assembling or joining by driven force fit
Definitions
- the invention relates to a method for producing rotationally symmetrical Components from a tube, in particular hollow monoblock shafts, the tube initially having a constant outside diameter and a constant Has wall thickness and the rotationally symmetrical component at least over a range of its total length a different one, in particular smaller outer diameter and / or a different one, in particular has greater wall thickness.
- the invention also relates to a rotationally symmetrical component, in particular a hollow monoblock shaft, with an outside diameter that varies over the entire length of the component and / or a varying wall thickness.
- Rotationally symmetrical components that differ over their entire length Have outside diameter and different wall thicknesses, in particular in motor vehicles as drive shafts, camshafts, intermediate shafts or gear shafts used. Under the generally stronger Attentive point of view of "weight loss" have been some time ago, instead of shafts made from solid rods, made from pipes Waves, so-called hollow shafts are used.
- Pipes especially steel pipes, are manufactured either seamless, d. H. from the full material without Longitudinal seam, or in a welded version, d. H. made of bent sheet metal or Strip steel with longitudinal seam. Welded parts are usually used for rotating components Pipes used, since seamless tubes have the required concentricity cannot always be guaranteed with sufficient certainty. Beyond that the production of seamless tubes is generally more expensive than the production of welded ones Tube.
- Wall thickness cannot be increased arbitrarily, but depends on the one hand Outside diameter and wall thickness of the original pipe to other on the outside diameter of the end portion of the shaft (material conservation or constant volume). Should the end area be a particularly large one Have wall thickness, it is necessary that the starting material, i.e. the original pipe, a sufficiently large wall thickness or one has a correspondingly large outer diameter. This can then do so cause the wall thickness and / or the outer diameter of the original Pipe must be larger than the desired wall thickness or the outer diameter of the finished shaft in the middle. With the pipe not only do the end areas have to be kneaded, but also the middle area must also be stretched both reduced in its outer diameter and in its wall thickness become.
- the invention is therefore based on the object of a method for producing of a rotationally symmetrical component described at the outset from a Specify pipe, which is carried out as simply and therefore inexpensively can be.
- the method according to the invention is therefore simpler and therefore less expensive carry out that as a starting material a tube with a wall thickness, which corresponds to the smallest wall thickness of the finished component becomes.
- only the wall thickness is used considered a region of the component with a certain length. has For example, the edge of the component has a short approach, which is a very has a small wall thickness, this is not the smallest wall thickness of the component to understand.
- the component will have its smallest wall thickness in have approximately in the middle area, the area of the smallest wall thickness but does not have to be exactly in the middle of the component.
- the process that is usually necessary in the prior art is eliminated Stretching an area, in particular the central area of the Tube.
- the pipe is a welded one that has not been retightened Tube is used. This can - as explained above - the manufacturing cost of the raw material i.e. the pipe significantly reduced become.
- the method according to the invention can thereby be advantageously further develop that axial upsetting and radial forging the heated area of the tube in one setting, preferably in one step. Must the tube in the individual processing steps not being switched from one machine to another, this results in shorter manufacturing times for the rotationally symmetrical Component, which also has a favorable effect on the manufacturing costs.
- the method according to the second teaching of the invention is reduced the manufacturing costs in that a tube as a starting material is used, which is only welded, but not tightened is. That for achieving an edge area of the tube with a relatively large Wall thickness required material volume is used in this process provided that the tube from a sheet or a Steel strip with a large thickness is bent.
- the wall thickness of the pipe with the smallest wall thickness of the finished component is reduced.
- 1a shows a simply welded tube 2 with an outer diameter D 1 and a wall thickness d 1 .
- the wall thickness d 1 corresponds to the thickness of the sheet or strip steel from which the tube 2 has been bent.
- 1b shows the tube 2 'after it has been drawn through a drawing nozzle or a drawing ring. By pulling the tube 2, it has an outer diameter D 2 ⁇ D 1 and a wall thickness d 2 > d 1 .
- This tube 2 ' is dimensioned such that a shaft 1 with an end region 3 with the desired outer diameter D E and the desired wall thickness d E can be produced by kneading.
- FIG. 2 shows an embodiment of the method according to the invention for producing a shaft 1 using three manufacturing steps.
- the first manufacturing step (FIG. 2a) corresponds to the first manufacturing step (FIG. 1a) in the method known from the prior art, namely it shows a simply welded tube 2 with an outside diameter D 1 and a wall thickness d 1 .
- the wall thickness d 1 of the tube 2 corresponds to the wall thickness d M of the central region 4 of the finished shaft 1.
- the outer diameter D 1 of the tube 2 also corresponds to the outer diameter D M of the central region 4 of the shaft 1, so that the central region 4 of the tube 2 or the shaft 1 does not have to be machined.
- tube 2 is a simply welded tube 2 that is not tightened can be used. This allows in the inventive method a processing step in the manufacture of the tube 2, namely the drawing of the tube 2 can be saved.
- the pipe 2b shows that the pipe 2, which is partially heated in the end region 3, is compressed axially, so that the pipe 2 has an overall length L 2 ⁇ L 1 .
- the axial upsetting of the tube 2 leads to a thickening of the wall thickness in the end region 3.
- the heated region of the tube 2, ie the end region 3 is machined by radial forging with a forging tool 5, as a result of which the desired outer diameter D E is achieved.
- a multi-stage change in the outside diameter and wall thickness in the end region 3 is achieved by several radial forging processes.
- the end region 3 has an outer diameter D 2 ⁇ D 1 .
- a mandrel is inserted into the tube 2 during the axial upsetting and the radial forging of the heated area.
- the desired wall thickness d E of the shaft 1 is then also determined by the choice of the outside diameter of the mandrel. Because the tube 2 is partially heated, no or significantly reduced work hardening processes occur, which makes a greater degree of deformation possible.
- the tube 2 shown in FIG. 2 or the shaft 1 shown has, for example, the following outer diameters D and wall thicknesses d in the individual production steps:
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Ceramic Products (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10120392A DE10120392B4 (de) | 2001-04-25 | 2001-04-25 | Verfahren zum Herstellen von rotationssymmetrischen Bauteilen |
DE10120392 | 2001-04-25 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1252946A2 true EP1252946A2 (fr) | 2002-10-30 |
EP1252946A3 EP1252946A3 (fr) | 2003-10-08 |
EP1252946B1 EP1252946B1 (fr) | 2006-04-12 |
Family
ID=7682753
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02002515A Expired - Lifetime EP1252946B1 (fr) | 2001-04-25 | 2002-02-02 | Procédé pour la production des pièces à symétrie de rotation |
Country Status (5)
Country | Link |
---|---|
US (1) | US7275407B2 (fr) |
EP (1) | EP1252946B1 (fr) |
JP (1) | JP2002321035A (fr) |
AT (1) | ATE322949T1 (fr) |
DE (2) | DE10120392B4 (fr) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1997569A1 (fr) * | 2007-05-22 | 2008-12-03 | Benteler Automobiltechnik GmbH | Procédé de traitement des extrémités de tuyaux |
CN100460138C (zh) * | 2004-08-19 | 2009-02-11 | 中国北车集团大同电力机车有限责任公司 | 法兰式台阶薄壁长套类锻件的整体随形锻造方法 |
DE102007053551A1 (de) * | 2007-11-07 | 2009-05-28 | Rauschnabel, Eberhard, Dr.-Ing. | Verfahren zu Querschnittsveränderungen an Hohlteilen |
DE102010015835A1 (de) | 2010-04-20 | 2011-10-20 | IFUTEC Ingenieurbüro für Umformtechnik GmbH | Verfahren zum maschinellen Herstellen von zylinderförmigen Werkstücken |
CN102581153A (zh) * | 2012-01-06 | 2012-07-18 | 昌河飞机工业(集团)有限责任公司 | 一种收口拉杆加工方法 |
CN101987343B (zh) * | 2009-08-07 | 2012-12-05 | 上海重型机器厂有限公司 | 核电设备锥形筒体的锻造方法 |
DE102011086125B4 (de) * | 2010-12-07 | 2015-07-02 | Nsk Deutschland Gmbh | Rohrverdickungsverfahren, derart gefertigtes Lenkrohr und Fahrzeug mit derartigem Lenkrohr |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20080061555A1 (en) * | 2005-02-16 | 2008-03-13 | Colin Knight | Flared cone fitting |
US7776166B2 (en) * | 2006-12-05 | 2010-08-17 | Praxair Technology, Inc. | Texture and grain size controlled hollow cathode magnetron targets and method of manufacture |
US20100068428A1 (en) * | 2007-05-26 | 2010-03-18 | Neumayer Tekfor Holding Gmbh | Method for Producing Hollow Shaft Base Bodies and Hollow Shaft Base Body Produced Thereby |
US7922593B2 (en) * | 2008-10-23 | 2011-04-12 | American Axle & Manufacturing, Inc. | Driveshaft assembly |
DE102012106423A1 (de) * | 2012-07-17 | 2014-01-23 | Benteler Automobiltechnik Gmbh | Verfahren zur Herstellung eines Rohrstabilisators für ein Kraftfahrzeug |
KR101389193B1 (ko) | 2012-09-11 | 2014-04-24 | 현대위아 주식회사 | 등속조인트용 샤프트의 제조방법 |
CN104668892B (zh) * | 2013-12-02 | 2018-01-16 | 江西昌河航空工业有限公司 | 直升机收口拉杆加工工艺方法 |
DE102014014818A1 (de) * | 2014-04-06 | 2015-11-12 | IFUTEC Ingenieurbüro für Umformtechnik GmbH | Warm-Kalt-Umformung von Hohlkörpern |
WO2016162857A1 (fr) * | 2015-04-10 | 2016-10-13 | Tecniforja – Forjagem E Estampagem De Peças Técnicas, Lda | Forgeage d'acier à chaud sur presse horizontale |
JP6521914B2 (ja) * | 2016-07-26 | 2019-05-29 | トヨタ自動車株式会社 | 製造方法、スタビライザの製造方法およびスタビライザ製造用金型 |
US11122741B2 (en) * | 2018-01-30 | 2021-09-21 | Cnh Industrial America Llc | Stalk roller assembly for an agricultural system |
DE102018005356A1 (de) * | 2018-07-05 | 2020-01-09 | Neumayer Tekfor Engineering Gmbh | Verfahren und Herstellungsvorrichtung zur Herstellung eines Rohrs sowie entsprechend hergestelltes Rohr |
KR102174259B1 (ko) * | 2018-09-28 | 2020-11-04 | 일진제강(주) | 업세팅 공법을 이용한 중공 드라이브 샤프트 및 이의 제조 방법 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2133091A (en) * | 1936-10-07 | 1938-10-11 | Clark Equipment Co | Axle and method of forming same |
US2256065A (en) * | 1939-10-21 | 1941-09-16 | Pittsburgh Steel Co | Tubular car axle and method for making it |
DE1804673A1 (de) * | 1968-10-23 | 1970-06-11 | Benteler Werke Ag | Achse fuer Kraftfahrzeuge od.dgl.und Verfahren zu deren Herstellung |
DE3142480A1 (de) * | 1980-12-22 | 1982-07-22 | GFM-Gesellschaft für Fertigungstechnik und Maschinenbau GmbH, 4403 Steyr | "verfahren zum herstellen oertlicher mantelverstaerkungen an hohlkoerpern" |
US4380480A (en) * | 1981-01-20 | 1983-04-19 | Vallourec | Method of making one-piece tubular axle blanks and the produced axle blanks |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2054244A (en) * | 1936-07-10 | 1936-09-15 | William W Criley | Method of extruding socket forgings |
US3564896A (en) * | 1965-09-03 | 1971-02-23 | North American Rockwell | Method of making axle beam |
US3585832A (en) * | 1968-06-14 | 1971-06-22 | Battelle Development Corp | Metal working |
DE2812803C2 (de) * | 1978-03-23 | 1982-11-18 | Laeis-Werke Ag, 5500 Trier | Vorrichtung zum Anstauchen von Rohrenden, insbesondere für Bohrgestängerohre mit Vorschweißverbindern |
JPS63149038A (ja) * | 1986-12-15 | 1988-06-21 | Nippon Steel Corp | 外アツプセツト・プレスによる鋼管端部の加工方法 |
DE19818653A1 (de) * | 1998-04-25 | 1999-10-28 | Bpw Bergische Achsen Kg | Verfahren zur Herstellung eines einteiligen Achskörpers sowie nach dem Verfahren hergestellter Achskörper |
-
2001
- 2001-04-25 DE DE10120392A patent/DE10120392B4/de not_active Withdrawn - After Issue
-
2002
- 2002-02-02 EP EP02002515A patent/EP1252946B1/fr not_active Expired - Lifetime
- 2002-02-02 AT AT02002515T patent/ATE322949T1/de not_active IP Right Cessation
- 2002-02-02 DE DE50206354T patent/DE50206354D1/de not_active Expired - Fee Related
- 2002-02-26 JP JP2002050004A patent/JP2002321035A/ja active Pending
- 2002-04-25 US US10/131,138 patent/US7275407B2/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2133091A (en) * | 1936-10-07 | 1938-10-11 | Clark Equipment Co | Axle and method of forming same |
US2256065A (en) * | 1939-10-21 | 1941-09-16 | Pittsburgh Steel Co | Tubular car axle and method for making it |
DE1804673A1 (de) * | 1968-10-23 | 1970-06-11 | Benteler Werke Ag | Achse fuer Kraftfahrzeuge od.dgl.und Verfahren zu deren Herstellung |
DE3142480A1 (de) * | 1980-12-22 | 1982-07-22 | GFM-Gesellschaft für Fertigungstechnik und Maschinenbau GmbH, 4403 Steyr | "verfahren zum herstellen oertlicher mantelverstaerkungen an hohlkoerpern" |
US4380480A (en) * | 1981-01-20 | 1983-04-19 | Vallourec | Method of making one-piece tubular axle blanks and the produced axle blanks |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100460138C (zh) * | 2004-08-19 | 2009-02-11 | 中国北车集团大同电力机车有限责任公司 | 法兰式台阶薄壁长套类锻件的整体随形锻造方法 |
EP1997569A1 (fr) * | 2007-05-22 | 2008-12-03 | Benteler Automobiltechnik GmbH | Procédé de traitement des extrémités de tuyaux |
DE102007053551A1 (de) * | 2007-11-07 | 2009-05-28 | Rauschnabel, Eberhard, Dr.-Ing. | Verfahren zu Querschnittsveränderungen an Hohlteilen |
CN101987343B (zh) * | 2009-08-07 | 2012-12-05 | 上海重型机器厂有限公司 | 核电设备锥形筒体的锻造方法 |
DE102010015835A1 (de) | 2010-04-20 | 2011-10-20 | IFUTEC Ingenieurbüro für Umformtechnik GmbH | Verfahren zum maschinellen Herstellen von zylinderförmigen Werkstücken |
DE102011086125B4 (de) * | 2010-12-07 | 2015-07-02 | Nsk Deutschland Gmbh | Rohrverdickungsverfahren, derart gefertigtes Lenkrohr und Fahrzeug mit derartigem Lenkrohr |
CN102581153A (zh) * | 2012-01-06 | 2012-07-18 | 昌河飞机工业(集团)有限责任公司 | 一种收口拉杆加工方法 |
Also Published As
Publication number | Publication date |
---|---|
US20020160844A1 (en) | 2002-10-31 |
US7275407B2 (en) | 2007-10-02 |
DE10120392B4 (de) | 2004-09-23 |
EP1252946B1 (fr) | 2006-04-12 |
ATE322949T1 (de) | 2006-04-15 |
DE50206354D1 (de) | 2006-05-24 |
EP1252946A3 (fr) | 2003-10-08 |
JP2002321035A (ja) | 2002-11-05 |
DE10120392A1 (de) | 2002-10-31 |
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