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EP1909985A1 - Procede de mise en forme d'une tole ronde - Google Patents

Procede de mise en forme d'une tole ronde

Info

Publication number
EP1909985A1
EP1909985A1 EP06762175A EP06762175A EP1909985A1 EP 1909985 A1 EP1909985 A1 EP 1909985A1 EP 06762175 A EP06762175 A EP 06762175A EP 06762175 A EP06762175 A EP 06762175A EP 1909985 A1 EP1909985 A1 EP 1909985A1
Authority
EP
European Patent Office
Prior art keywords
diameter
metal blank
sheet metal
thickness
tool
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
Application number
EP06762175A
Other languages
German (de)
English (en)
Other versions
EP1909985B1 (fr
Inventor
Udo Friese
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WF Maschinenbau und Blechformtecknik GmbH and Co KG
Original Assignee
WF Maschinenbau und Blechformtecknik GmbH and Co KG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=37192363&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1909985(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by WF Maschinenbau und Blechformtecknik GmbH and Co KG filed Critical WF Maschinenbau und Blechformtecknik GmbH and Co KG
Priority to PL06762175T priority Critical patent/PL1909985T3/pl
Publication of EP1909985A1 publication Critical patent/EP1909985A1/fr
Application granted granted Critical
Publication of EP1909985B1 publication Critical patent/EP1909985B1/fr
Revoked legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • B21K1/28—Making machine elements wheels; discs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D22/00—Shaping without cutting, by stamping, spinning, or deep-drawing
    • B21D22/14—Spinning
    • 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
    • B21H1/02—Making articles shaped as bodies of revolution discs; disc wheels
    • 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
    • Y10T29/49481—Wheel making

Definitions

  • the invention relates to a method for forming a sheet metal blank with a central hole which rests on a rotating tool about an axis and has a thickness al and a diameter dl which is smaller than the diameter of the tool.
  • the invention has the object to go new ways in the transformation of sheet metal blanks by means of spinning rollers.
  • one or more spinning roller preferably first immersed axially in the material of the sheet metal blank and then moved radially outward (this is to be understood that the way pressure roller at least one component of movement in the radial direction), whereby the surface of the circular sheet metal plate radially is increased in all directions, so that from the sheet metal blank with the initial diameter dl and the thickness al a rotationally symmetric part, in particular a sheet metal blank with a larger diameter d2 and at least partially or continuously reduced thickness a2 is produced.
  • the invention it is possible to produce a sheet metal blank or directly a rotationally symmetric part, in particular a gear part, with a larger diameter d2 and an at least partially or continuously reduced thickness a2 from a sheet metal blank having an initial diameter d1 and a thickness al. It is even possible to increase the diameter by more than 10%, in particular more than 20%.
  • the term of the sheet metal blank is not too narrow in view of the part produced by the forming. It is on the one hand possible to produce a flat sheet metal blank. However, this can also be contoured if the tool is contoured accordingly.
  • the sheet metal blank can be processed or further processed directly into a gear part or the like.
  • the method can be used in a wide variety of fields.
  • a preferred application is the enlargement of "small" circular blanks, as they occur, for example, in the production of wheel discs for lorries, which would otherwise have to be scrapped.
  • the invention is a use for a different purpose, eg for the production of Radschdorfln for Smaller commercial vehicles still possible. The resulting cost advantage is not to be underestimated.
  • FIG. 1 shows a metal blank as the starting workpiece
  • Fig. 2 shows the metal blank of Fig. 1 in dashed lines on a tool and with solid lines after the forming.
  • Fig. 1 shows a sheet metal blank 1, preferably with a central hole 2, which rests in Fig. 2 on a rotatable about an axis 3 tool 4 (on a spindle not shown here a spinning machine) and has a thickness al and a diameter dl.
  • the sheet metal blank 1 is preferably held on the central hole 2.
  • the axial length of the pin 5 may be smaller, the same size or larger than the thickness dl of the circular sheet metal dl.
  • the sheet metal blank 1 is preferably made of a cast iron or other formable by pressing other metal.
  • the tool 4 extends radially in all directions beyond the outer circumference of the sheet metal blank 1 with a preferably circular shape. It preferably has a flat surface, but may also be formed contoured.
  • one or more freely rotatable press rollers 7 are arranged, which can be delivered at least axially in the direction x of the workpiece and radially in the direction r, also in superimposed movements.
  • the spinning roller 7 is delivered axially in the direction x at a distance from the outer circumference, preferably close to the centric hole or even at the edge of the centric hole, whereby it is immersed in the workpiece , Then or while it is radially moved in the direction r outward so that it presses material of the sheet metal blank 1 in front of it radially outward.
  • the surface of the blank 1 is radially enlarged in all directions, and surprisingly without crack formation in the outer circumferential region.
  • a freely rotatable hold-down roller 8 in the outer peripheral region can additionally prevent the blank material from bulging out of the plane of the sheet metal blank 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Forging (AREA)

Abstract

L'invention concerne un procédé de mise en forme d'une tôle ronde (1) dotée d'un trou central (2). Cette tôle ronde qui repose sur un outil (4) tournant autour d'un axe (3) et a une épaisseur al et un diamètre dl qui est inférieur au diamètre de l'outil (4). L'invention est caractérisée en ce qu'au moins un rouleau de repoussage pénètre dans le matériau de la tôle ronde, de préférence, axialement et se déplace radialement vers l'extérieur, de telle façon que la surface de la tôle ronde (1) s'agrandisse radialement dans toutes les directions de manière à obtenir à partir de la tôle ronde d'un diamètre initial dl et d'une épaisseur al un élément, de préférence, à symétrie de rotation, notamment une autre tôle ronde ayant diamètre d2 plus grand et une épaisseur a2 réduite au moins par sections ou en continu.
EP06762175.5A 2005-07-25 2006-06-24 Procede de mise en forme d'une tole ronde Revoked EP1909985B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL06762175T PL1909985T3 (pl) 2005-07-25 2006-06-24 Sposób obróbki plastycznej okrągłego wykroju z blachy

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102005035229 2005-07-25
DE102005035519A DE102005035519A1 (de) 2005-07-25 2005-07-26 Verfahren zum Umformen einer Blechronde
PCT/EP2006/006105 WO2007012367A1 (fr) 2005-07-25 2006-06-24 Procede de mise en forme d'une tole ronde

Publications (2)

Publication Number Publication Date
EP1909985A1 true EP1909985A1 (fr) 2008-04-16
EP1909985B1 EP1909985B1 (fr) 2014-04-30

Family

ID=37192363

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06762175.5A Revoked EP1909985B1 (fr) 2005-07-25 2006-06-24 Procede de mise en forme d'une tole ronde

Country Status (9)

Country Link
US (1) US20090211323A1 (fr)
EP (1) EP1909985B1 (fr)
JP (1) JP2009502508A (fr)
KR (1) KR20080026192A (fr)
CA (1) CA2614931A1 (fr)
DE (1) DE102005035519A1 (fr)
ES (1) ES2484800T3 (fr)
PL (1) PL1909985T3 (fr)
WO (1) WO2007012367A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1026796C2 (nl) * 2004-08-06 2006-02-07 Fontijne Grotnes B V Werkwijze en inrichting voor het door middel van koude vervorming vervaardigen van een velgring.
CN101966555A (zh) * 2009-07-28 2011-02-09 上海兴浦旋压车轮有限公司 一种车轮辗压成型方法
CN104759851A (zh) * 2015-04-07 2015-07-08 常州龙之合飞轮总成系统有限公司 一种发动机飞轮成型新工艺
CN114042843A (zh) * 2021-11-09 2022-02-15 常州和仕达机械装备制造有限公司 异形环件的水平辗轧工艺及成型装置
CN114042844A (zh) * 2021-11-09 2022-02-15 常州和仕达机械装备制造有限公司 异形环件的水平辗轧成型装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD236824A1 (de) 1985-04-30 1986-06-18 Karl Marx Stadt Haushaltgeraet Metalldrueckverfahren zur herstellung von schlagzeugbecken
DD283088A5 (de) 1989-05-16 1990-10-03 Karl Marx Stadt Haushaltgeraet Verfahren zum herstellen von rundmesserschneiden
DE10033239A1 (de) 2000-07-10 2002-01-24 Wf Maschinenbau Blechformtech Verfahren zur Herstellung einer Verstellscheibe eines stufenlosen Getriebes

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19524089C1 (de) * 1995-07-01 1996-09-05 Wf Maschinenbau Blechformtech Verfahren und Vorrichtung zur Herstellung eines Getriebeteiles aus einer Metallronde
DE10108498C1 (de) * 2001-02-22 2002-08-22 Wf Maschinenbau Blechformtech Vorrichtung zur spanlosen Herstellung eines eine konzentrische Nabe aufweisenden Formkörpers
DE10160038C1 (de) * 2001-12-06 2003-03-13 Winkelmann & Pannhoff Gmbh & C Verfahren zur Herstellung eines rotationssymmetrischen Bauteils
JP5118852B2 (ja) * 2003-11-17 2013-01-16 ヴェーエフ−マシーネンバウ ウント ブレッヒフォルムテヒニック ゲーエムベーハー ウント ツェーオー コマンディットゲゼルシャフト メタルブランク上にフランジを製造するための方法およびトランズミッション部品

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD236824A1 (de) 1985-04-30 1986-06-18 Karl Marx Stadt Haushaltgeraet Metalldrueckverfahren zur herstellung von schlagzeugbecken
DD283088A5 (de) 1989-05-16 1990-10-03 Karl Marx Stadt Haushaltgeraet Verfahren zum herstellen von rundmesserschneiden
DE10033239A1 (de) 2000-07-10 2002-01-24 Wf Maschinenbau Blechformtech Verfahren zur Herstellung einer Verstellscheibe eines stufenlosen Getriebes

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2007012367A1

Also Published As

Publication number Publication date
ES2484800T3 (es) 2014-08-12
WO2007012367A1 (fr) 2007-02-01
US20090211323A1 (en) 2009-08-27
CA2614931A1 (fr) 2007-02-01
PL1909985T3 (pl) 2014-12-31
DE102005035519A1 (de) 2007-02-01
KR20080026192A (ko) 2008-03-24
JP2009502508A (ja) 2009-01-29
EP1909985B1 (fr) 2014-04-30

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