EP1138409A1 - Matrice de formage par haute pression interne pour former une pièce creuse à partir de deux tôles - Google Patents

Matrice de formage par haute pression interne pour former une pièce creuse à partir de deux tôles Download PDF

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Publication number
EP1138409A1
EP1138409A1 EP01107667A EP01107667A EP1138409A1 EP 1138409 A1 EP1138409 A1 EP 1138409A1 EP 01107667 A EP01107667 A EP 01107667A EP 01107667 A EP01107667 A EP 01107667A EP 1138409 A1 EP1138409 A1 EP 1138409A1
Authority
EP
European Patent Office
Prior art keywords
tool
feed
feed means
section
opening
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
EP01107667A
Other languages
German (de)
English (en)
Other versions
EP1138409B1 (fr
Inventor
Bernd Dr.-Ing. Engel
Matthias Dr.-Ing. Prier
Ralf Dipl.-Ing. Huber
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.)
Schuler Hydroforming GmbH and Co KG
Original Assignee
Schuler Hydroforming 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
Application filed by Schuler Hydroforming GmbH and Co KG filed Critical Schuler Hydroforming GmbH and Co KG
Publication of EP1138409A1 publication Critical patent/EP1138409A1/fr
Application granted granted Critical
Publication of EP1138409B1 publication Critical patent/EP1138409B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C9/00—Moulds or cores; Moulding processes
    • B22C9/02—Sand moulds or like moulds for shaped castings
    • 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
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/021—Deforming sheet bodies
    • B21D26/031—Mould construction
    • 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
    • B21D26/00—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces
    • B21D26/02—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure
    • B21D26/053—Shaping without cutting otherwise than using rigid devices or tools or yieldable or resilient pads, i.e. applying fluid pressure or magnetic forces by applying fluid pressure characterised by the material of the blanks
    • B21D26/059—Layered blanks
    • 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
    • Y10T29/49805—Shaping by direct application of fluent pressure

Definitions

  • the invention relates to a multi-part mold for after hydroforming Hollow components to be produced from two sheet metal plates, comprising an upper and a lower tool, which have a mold cavity, and between which the sheet metal plates can be clamped at their edge areas, with a feed agent for the active medium in the mold cavity, which is in the tool is slidably arranged and transversely in the direction of the clamping plane of Upper and lower tools can be taken along with the material flowing during the deformation is.
  • the Docking stamp Since the Docking stamp is slidably mounted, remain when material flows also from the area of the edge where the docking stamp is docked, the geometric Conditions when the material flows in unchanged, so that the sealing connection of the docking stamp is also retained.
  • the carrier or the transverse docking punch in the tool itself is slidably arranged, which is a corresponding recess in Tool required.
  • the known design makes it flexible Connector between pressure source and moving docking stamp necessary.
  • the invention is therefore based on the object of a generic molding tool to create that while overcoming the disadvantages of the prior art ensures an effective carrying of the feed means for the active medium.
  • the feed means section opening into the mold cavity in order to move it at least two disks with one Eccentric adjustment penetrates and the eccentric adjustment is selected such that the opposite direction of rotation of the discs of the feed section travels a straight line.
  • the two are Discs with eccentric adjustment around an inner disc that rotates around their center, in an outer disc that also rotates around its center is eccentrically integrated.
  • the one that can be carried along with the flowing movement of the board material Feed means section for introducing the active fluid penetrates the inner pane eccentric, which in turn is taken up by the outer pane. If the sheet material starts to flow during the forming process, it is feed means section opening into the mold cavity or into the feed channel possible, a movement by mutual rotation of the rotatable discs across in the direction of the clamping plane between the upper and lower tool to participate.
  • the diameter corresponds to Inner pane the radius of the outer pane.
  • the molding tool is advantageously further developed by the supply means next to the first section opening into the mold cavity, either the upper or lower tool penetrating fixed feed means section comprise, in a feed channel extending parallel to the displacement path opens out around the first feed means section along its displacement path to be supplied with active agents. In this way it is ensured that the entrained first feed means section by moving along the feed channel is always supplied with active fluid.
  • the suggested driving means are far more integrated in the tool Component.
  • a mounting plate is provided on the tool side, from which the active fluid enters, which receives the two eccentric discs.
  • the feed means section opening into the mold cavity is an axial channel or designed as a nozzle.
  • the inner disc has a conical Muzzle piece with a recessed collar, the muzzle piece the axial channel with the inner pane and indirectly the outer pane anchored in the board.
  • the molding tool has the advantage that both Boards always come into contact with the tool, which creates a thereby exploiting contact friction.
  • the tool shown in FIG. 1 for internal high pressure forming is composed of an upper and lower tool 1, 2, the form a mold cavity between them.
  • Figure 5 which is an overall view on such a tool according to the prior art, should hydroforming are described.
  • it sets consists of the insertion, the docking phase, the expansion phase and the calibration phase together.
  • the two boards 3, 4 in the tool inserted and the two tool parts 1, 2 by guide not shown here and pressing devices moved together, so that the boards rotating be pinched in an edge area.
  • the docking then usually takes place with a docking stamp for introducing the active fluid, the docking stamp is connected to the opening of one board.
  • the active fluid enters through the docking stamp under high pressure and displaces the other board into a feed channel widening in the edge area of the boards. While During this expansion phase, the boards in the mold cavity expand, and it material flows from the pinched edge areas in the direction of the mold cavity to. In the subsequent calibration phase, the marginal areas more firmly clamped, and the blanks are - the engraving of the tool accepting - further widened to the finished contour.
  • FIG. 1 shows a molding tool developed according to the invention at the beginning the expansion phase with a moving feed system. It includes an upper and a lower tool 1, 2, which between them two sheet metal plates 3, Record 4. Along the lower tool 2, on which the edge areas of the lower Board 4 come to rest or are clamped, is a mounting plate 5 provided. This takes an outer circular disc 6 around it The center is arranged rotating. Is eccentric to the outer disc 6 a circular inner pane 7 with 6 smaller in relation to the outer pane Diameter arranged. Extends transversely to the clamping plane of the boards 3, 4 there is a nozzle or an axial channel 8 along the inner or outer pane 7, 6.
  • the inner pane 7 is with a conical mouthpiece 9 at the mouth area of the axial channel 8 and has the thickness of the board in its initial form a collar 10 which is flush with the plate 4 at the top completes.
  • the axial channel 8 has on the other side of the inner pane Extension 11 with an enlarged diameter.
  • a feed or collection channel 12 incorporated, which is below of the two disks extends parallel to the clamping plane of the two boards. Its expansion is due to the maximum diameter of the outer disk 6 limited.
  • This feed channel 12, advantageously designed as a groove, is via a Pressure channel 13, which leads through the lower tool, with the active fluid, i.e. With a hydraulic fluid, fed (here indicated by an arrow).
  • the blanks 3, 4 are inserted into the tool, the board 4, which has been provided with a corresponding opening, is inserted so that the mouthpiece 9 of the axial channel 8 already engages tightly in the opening.
  • the expansion phase initiated by introducing hydraulic fluid.
  • the axial channel 8, which is in the opening of the lower board 4 is firmly anchored, is carried along by the flow movement and on one straight path through the opposite rotation of the two discs emotional. This movement and thus local relocation of the means of transport becomes clear in Figures 2 and 4, in which the directions of rotation of the two Disks and the movement of the axial channel shown by corresponding arrows are.
  • FIG. 3 shows the position of the entrainment means (discs 6, 7) at the end of the expansion phase, whereby the axial channel is located approximately at the end of its displacement.
  • the pivots of the two letters are here with 15, 16 designated.
  • the outer disc moves 6 always around their center 15, while they also around their own Center 16 rotatable inner disc 7 entrains, the axial channel as a whole a straight line movement. The backward movement of the axial channel takes place after removal of the component from the tool by resetting the eccentric disk arrangement in its starting position.
  • the arrangement of the feed means for the active fluid or the driving means are not limited to the lower tool; you can can of course also be arranged in the upper tool.
  • the arrangement of the feed means for the active fluid or the driving means are not limited to the lower tool; you can can of course also be arranged in the upper tool.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Forging (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
EP01107667A 2000-03-31 2001-03-28 Matrice de formage par haute pression interne pour former une pièce creuse à partir de deux tôles Expired - Lifetime EP1138409B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10016206A DE10016206C1 (de) 2000-03-31 2000-03-31 Formwerkzeug für nach dem Innenhochdruck-Umformen herzustellende hohle Bauteile aus zwei Blechplatinen
DE10016206 2000-03-31

Publications (2)

Publication Number Publication Date
EP1138409A1 true EP1138409A1 (fr) 2001-10-04
EP1138409B1 EP1138409B1 (fr) 2003-09-10

Family

ID=7637221

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01107667A Expired - Lifetime EP1138409B1 (fr) 2000-03-31 2001-03-28 Matrice de formage par haute pression interne pour former une pièce creuse à partir de deux tôles

Country Status (7)

Country Link
US (1) US6341515B2 (fr)
EP (1) EP1138409B1 (fr)
JP (1) JP2001300645A (fr)
KR (1) KR20010095020A (fr)
AT (1) ATE249295T1 (fr)
DE (2) DE10016206C1 (fr)
ES (1) ES2207576T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1772207A1 (fr) * 2005-10-05 2007-04-11 ThyssenKrupp Drauz Nothelfer GmbH Outillage et procédé de réalisation de pièces en tôle présentant des cavités
CN110935780A (zh) * 2019-12-16 2020-03-31 长沙而道新能源科技有限公司 一种内高压成型液压机

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10016025B4 (de) * 2000-03-31 2005-06-16 Hde Solutions Gmbh Verfahren zur Herstellung von Hohlkörpern
US6694790B2 (en) * 2002-04-17 2004-02-24 General Motors Corporation Mid plate process and equipment for the superplastic forming of parts from plural sheets
EP2651579B1 (fr) 2010-12-17 2021-06-23 Magna International Inc. Équipement et procédé pour façonner des articles emboutis à partir de plusieurs flans de tôle

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19816566A1 (de) * 1998-04-15 1999-11-04 Thyssenkrupp Stahl Ag Werkzeug und Verfahren zum Herstellen eines Hohlkörpers durch Innenhochdruckumformen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4331284A (en) * 1980-03-14 1982-05-25 Rockwell International Corporation Method of making diffusion bonded and superplastically formed structures
JPS5966941A (ja) * 1982-10-07 1984-04-16 Mitsubishi Heavy Ind Ltd モ−ルドの製造方法
US5692406A (en) * 1996-09-27 1997-12-02 Mcdonnell Douglas Corporation Gas inlet for a superplastic forming die and method of use
US5737954A (en) * 1996-11-15 1998-04-14 Mcdonnell Douglas Corporation Superplastic forming with direct electrical heating

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19816566A1 (de) * 1998-04-15 1999-11-04 Thyssenkrupp Stahl Ag Werkzeug und Verfahren zum Herstellen eines Hohlkörpers durch Innenhochdruckumformen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1772207A1 (fr) * 2005-10-05 2007-04-11 ThyssenKrupp Drauz Nothelfer GmbH Outillage et procédé de réalisation de pièces en tôle présentant des cavités
CN110935780A (zh) * 2019-12-16 2020-03-31 长沙而道新能源科技有限公司 一种内高压成型液压机
CN110935780B (zh) * 2019-12-16 2021-08-20 长沙而道新能源科技有限公司 一种内高压成型液压机

Also Published As

Publication number Publication date
JP2001300645A (ja) 2001-10-30
DE50100586D1 (de) 2003-10-16
ES2207576T3 (es) 2004-06-01
DE10016206C1 (de) 2001-10-04
EP1138409B1 (fr) 2003-09-10
KR20010095020A (ko) 2001-11-03
US20020000112A1 (en) 2002-01-03
ATE249295T1 (de) 2003-09-15
US6341515B2 (en) 2002-01-29

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