EP1462190B1 - Verfahren und Vorrichtung zum inkrementellen Formen - Google Patents

Verfahren und Vorrichtung zum inkrementellen Formen Download PDF

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Publication number
EP1462190B1
EP1462190B1 EP03255335A EP03255335A EP1462190B1 EP 1462190 B1 EP1462190 B1 EP 1462190B1 EP 03255335 A EP03255335 A EP 03255335A EP 03255335 A EP03255335 A EP 03255335A EP 1462190 B1 EP1462190 B1 EP 1462190B1
Authority
EP
European Patent Office
Prior art keywords
workpiece
form portion
forming
incremental forming
incremental
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 - Lifetime
Application number
EP03255335A
Other languages
English (en)
French (fr)
Other versions
EP1462190A1 (de
Inventor
Norihisa c/o Hitachi Ltd. IP Group Okada
Gen Ro
Yohji Suzuki
Masatoshi Nara
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.)
Hitachi Ltd
Amino Corp
Original Assignee
Hitachi Ltd
Amino Corp
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
Application filed by Hitachi Ltd, Amino Corp filed Critical Hitachi Ltd
Publication of EP1462190A1 publication Critical patent/EP1462190A1/de
Application granted granted Critical
Publication of EP1462190B1 publication Critical patent/EP1462190B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B21D22/18—Spinning using tools guided to produce the required profile
    • 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
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D31/00—Other methods for working sheet metal, metal tubes, metal profiles
    • B21D31/005—Incremental shaping or bending, e.g. stepwise moving a shaping tool along the surface of the workpiece

Definitions

  • the present invention relates to an incremental forming method and an incremental forming apparatus.
  • Patent document 1 Japanese Patent Laid-Open Publication No. 2002-1444 (European Patent Application Publication No. 1147832 A2) discloses an incremental forming method according to which a rod shaped tool is applied to the surface of a metal plate material and incremental forming is performed by shaping the plate member with the tool along a contour line corresponding to the shape of the product to be formed.
  • JP 11-207413 shows another example of a prior art incremental forming apparatus and method.
  • a workpiece is held on a workpiece holder by a workpiece clamp and incrementally formed using a rotary incremental forming tool.
  • FIG. 1 is a perspective view showing the product manufactured through incremental forming that applies the present invention.
  • the product comprises a primary form portion 10 having a two-dimensional curved cross-sectional shape, and a secondary form portion 20 having a three-dimensional shape and protruding from the center of the primary form portion 10.
  • FIGS. 5 through 9 illustrate the conventional process for manufacturing the product 1 through conventional incremental forming.
  • a forming jig 100 disposed on a table 50 includes a first mold member 110 corresponding to the primary form portion 10 of the product and a second mold member 120 corresponding to the secondary form portion 20 of the product.
  • a metal plate 140 being the workpiece (base material) is a flat plate-shaped member, having its periphery supported by a workpiece holder 130 and a workpiece clamp 150.
  • the workpiece holder 130 can be lowered from the peak area of the second mold member.
  • An incremental forming tool 160 has an axis that is disposed along the perpendicular direction Z, and is capable of moving both in the horizontal direction X, Y and perpendicular direction Z.
  • FIG. 6 is a schematic view of the conventional incremental forming
  • FIG. 7 shows the forming path.
  • the incremental forming tool 160 moves along the X-Y axis parallel to the upper surface of a plate-shaped workpiece 140, whilemoving in the Z axis direction corresponding to a pitch P at a time.
  • the incremental forming tools 160 illustrated in each of the drawings in FIG. 8, actually there is only one incremental forming tool.
  • Three tools 160 are illustrated in each drawing to show that the tool is moved along a contour line.
  • FIG. 9(a) shows a state in which the incremental forming process is completed and a primary form portion 10 and a secondary form portion 20 are created on the workpiece 140.
  • the workpiece 140 is subjected to an appropriate trimming process C 1 for trimming the peripheral area of the workpiece to correspond to the product, thereby forming the product 1.
  • the workpiece 140 is left with an end material having a space 142 from which the product is cut out by the trimming, which causes deterioration of the yield factor of the material.
  • the present invention aims at providing a method and apparatus for incremental forming that overcomes the above-mentioned problems of the prior art.
  • the three-dimensional incremental forming method according to the present invention is as set forth in claim 1.
  • the incremental forming apparatus according to the present invention is as set forth in claim 4.
  • FIGS. 2 through 4 are explanatory views illustrating the method for creating a product by the incremental forming according to the present invention.
  • a forming jig 200 positioned on a table 50 comprises only a mold member 220 corresponding to a secondary form portion of the product.
  • a metal plate 240 being the workpiece (material) is formed in advance into a curved plate having a two-dimensional curved surface that corresponds to a primary formportion of the product.
  • a workpiece holder 230 comprises a holder surface 232 that corresponds to the curved surface of the workpiece 240.
  • a workpiece clamp 250 has a clamp surface 252 that corresponds to the curved surface of the workpiece 240.
  • an incremental forming tool 260 and the table are relatively moved along the planar shape of the secondary form portion on an X-Y plane, and when the incremental forming tool 260 is relatively moved in the Y axis direction, the tool 260 is controlled so that it moves along the primary form portion, that is, along the curved surface of the workpiece 240.
  • the incremental forming tool 260 is advanced by a predetermined pitch P 2 to create the secondary form portion, in a manner similar to the conventional incremental forming.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Making Paper Articles (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Paper (AREA)

Claims (4)

  1. Inkrementelles Formverfahren zum Bilden eines Produkts (1) mit einem ersten Formteil (10), das einen Querschnitt mit zweidimensionaler gekrümmter Ebene aufweist, und einem zweiten Formteil (20), das eine dreidimensionale, an einem Abschnitt des ersten Formteils (10) gebildete Gestalt aufweist, wobei in dem inkrementellen Formverfahren:
    ein Werkstück (240) mit einer dem ersten Formteil (10) entsprechenden gekrümmten Ebene vorbereitet wird; und
    das zweite Formteil (20) mit der dreidimensionalen Gestalt durch inkrementelles Formen des Abschnitts des Werkstücks gebildet wird, indem eine Formschablone (200) mit einer dem zweiten Formteil (20) entsprechenden Gestalt verwendet wird.
  2. Inkrementelles Formverfahren nach Anspruch 1, wobei
    während dem inkrementellen Formprozeß zum Bilden des zweiten Formteils (20) ein inkrementelles Formwerkzeug (260) längs eines Pfads bewegt wird, der parallel zu der gekrümmten Ebene des ersten Formteils (10) verläuft.
  3. Inkrementelles Formverfahren nach Anspruch 2, wobei ein Umfang des Werkstücks (240) mit einem Werkstückhalter (230) und einer Werkstückklemme-(250) mit gekrümmten Flächen entsprechend der gekrümmten Ebene des Werkstücks (240) gehalten wird.
  4. Inkrementelles Formgerät zum Bilden eines Produkts (1) mit einem ersten Formteil, das einen Querschnitt mit einer zweidimensionalen gekrümmten Ebene aufweist, und einem zweiten Formteil (20), das eine dreidimensionale, an einem Abschnitt des ersten Formteils (10) gebildete Gestalt aufweist, wobei das Gerät aufweist:
    einen Tisch, an dem ein Werkstückhalter (230) und eine Werkstückklemme (250) zum umfangsweisen Halten eines Werkstücks (240) befestigt ist; und
    ein inkrementelles Formwerkzeug (260) mit einer Achse, die im wesentlichen senkrecht zu dem Tisch angeordnet ist,
    wobei das Gerät ferner eine Formschablone (200) mit einer dem zweiten Formteil (20) entsprechenden Gestalt aufweist, und
    wobei der Werkstückhalter (230) und die Werkstückklemme (240) gekrümmte Flächen aufweisen, die einer gekrümmten Fläche des Werkstücks (240) entsprechen.
EP03255335A 2003-03-28 2003-08-28 Verfahren und Vorrichtung zum inkrementellen Formen Expired - Lifetime EP1462190B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2003089942A JP4322033B2 (ja) 2003-03-28 2003-03-28 逐次成形加工方法及び装置
JP2003089942 2003-03-28

Publications (2)

Publication Number Publication Date
EP1462190A1 EP1462190A1 (de) 2004-09-29
EP1462190B1 true EP1462190B1 (de) 2006-03-29

Family

ID=32821576

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03255335A Expired - Lifetime EP1462190B1 (de) 2003-03-28 2003-08-28 Verfahren und Vorrichtung zum inkrementellen Formen

Country Status (9)

Country Link
US (1) US20040187548A1 (de)
EP (1) EP1462190B1 (de)
JP (1) JP4322033B2 (de)
KR (1) KR100545293B1 (de)
CN (1) CN1282509C (de)
AT (1) ATE321617T1 (de)
AU (1) AU2003244039A1 (de)
DE (1) DE60304298T2 (de)
TW (1) TWI288671B (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7984635B2 (en) 2005-04-22 2011-07-26 K.U. Leuven Research & Development Asymmetric incremental sheet forming system
US8322176B2 (en) * 2009-02-11 2012-12-04 Ford Global Technologies, Llc System and method for incrementally forming a workpiece
US8733143B2 (en) 2010-07-15 2014-05-27 Ford Global Technologies, Llc Method of incremental forming with successive wrap surfaces
US8783078B2 (en) 2010-07-27 2014-07-22 Ford Global Technologies, Llc Method to improve geometrical accuracy of an incrementally formed workpiece
US8302442B2 (en) 2010-07-29 2012-11-06 Ford Global Technologies, Llc Method of incrementally forming a workpiece
JP6072433B2 (ja) * 2012-05-23 2017-02-01 株式会社アミノ 遂次成形方法及び装置
JP2013252557A (ja) * 2012-06-08 2013-12-19 Amino:Kk 遂次成形方法
US9038999B2 (en) * 2012-08-10 2015-05-26 Ford Global Technologies, Llc Fixture assembly for forming prototype parts on an incremental forming machine
US9635714B2 (en) 2013-05-06 2017-04-25 The Boeing Company Incremental sheet forming for fabrication of cold sprayed smart susceptor
DE102014014202A1 (de) * 2014-09-22 2016-03-24 Technische Universität Dortmund Verfahren und Vorrichtung zur kombinierten Herstellung von Bauteilen mittels inkrementeller Blechumformung und additiver Verfahren in einer Aufspannung
US10144048B2 (en) 2014-11-19 2018-12-04 Ford Global Technologies, Llc High stiffness and high access forming tool for incremental sheet forming
US10478897B2 (en) * 2017-01-04 2019-11-19 GM Global Technology Operations LLC Sheet metal system and manufacturing process joining incremental forming and direct metal deposition
US10976716B2 (en) * 2018-03-16 2021-04-13 The Boeing Company Generating a plurality of curved transitions connecting planar parallel alternating paths for forming a workpiece
CN112517746B (zh) * 2019-09-17 2022-07-12 东南大学 一种自适应控制渐进成形方法

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2378413A (en) * 1942-09-24 1945-06-19 Cairns Corp Device for shaping metal sheets
US2434379A (en) * 1944-12-16 1948-01-13 Glenn L Martin Co Apparatus and method of stretch pressing metal sheets
US3021887A (en) * 1956-07-19 1962-02-20 Rohr Aircraft Corp Titanium stretch forming
US3478553A (en) * 1962-02-14 1969-11-18 Budd Co Method of forming sandwich panels
US5035133A (en) * 1990-02-09 1991-07-30 Rohr Industries, Inc. Method and apparatus for hot die draw forming metal sheets
DE4137453C1 (de) * 1991-11-14 1992-05-27 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De
ATE221423T1 (de) * 1997-09-18 2002-08-15 Cosma Int Inc Streck- und ziehwerkzeug und zugehöriges verfahren
JPH11207413A (ja) * 1998-01-21 1999-08-03 Toyota Central Res & Dev Lab Inc インクリメンタル成形方法
KR100319767B1 (ko) * 1998-01-29 2002-01-05 아미노 히로유키 판재의 다이 없는 성형장치
JP3753608B2 (ja) * 2000-04-17 2006-03-08 株式会社日立製作所 逐次成形方法とその装置
US6532786B1 (en) * 2000-04-19 2003-03-18 D-J Engineering, Inc. Numerically controlled forming method
JP2002102945A (ja) * 2000-09-25 2002-04-09 Honda Motor Co Ltd 逐次張出し成形用工具
DE10303458A1 (de) * 2003-01-29 2004-08-19 Amino Corp., Fujinomiya Verfahren und Vorrichtung zum Formen dünner Metallbleche
JP4209233B2 (ja) * 2003-03-28 2009-01-14 株式会社日立製作所 逐次成形加工装置

Also Published As

Publication number Publication date
JP2004291065A (ja) 2004-10-21
TW200418591A (en) 2004-10-01
DE60304298T2 (de) 2006-11-16
KR100545293B1 (ko) 2006-01-24
DE60304298D1 (de) 2006-05-18
US20040187548A1 (en) 2004-09-30
EP1462190A1 (de) 2004-09-29
ATE321617T1 (de) 2006-04-15
TWI288671B (en) 2007-10-21
CN1533853A (zh) 2004-10-06
KR20040086090A (ko) 2004-10-08
AU2003244039A1 (en) 2004-10-14
CN1282509C (zh) 2006-11-01
JP4322033B2 (ja) 2009-08-26

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