EP0940200A3 - Method and device for removing a slug from an internal high-pressure forming tool - Google Patents

Method and device for removing a slug from an internal high-pressure forming tool Download PDF

Info

Publication number
EP0940200A3
EP0940200A3 EP19990101944 EP99101944A EP0940200A3 EP 0940200 A3 EP0940200 A3 EP 0940200A3 EP 19990101944 EP19990101944 EP 19990101944 EP 99101944 A EP99101944 A EP 99101944A EP 0940200 A3 EP0940200 A3 EP 0940200A3
Authority
EP
European Patent Office
Prior art keywords
slug
tool
plunger
hydroforming
hydroforming 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
EP19990101944
Other languages
German (de)
French (fr)
Other versions
EP0940200B1 (en
EP0940200A2 (en
Inventor
Thomas Hülsberg
Ralf Pünjer
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.)
Mercedes Benz Group AG
Original Assignee
DaimlerChrysler AG
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 DaimlerChrysler AG filed Critical DaimlerChrysler AG
Publication of EP0940200A2 publication Critical patent/EP0940200A2/en
Publication of EP0940200A3 publication Critical patent/EP0940200A3/en
Application granted granted Critical
Publication of EP0940200B1 publication Critical patent/EP0940200B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • B21D45/00—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass
    • B21D45/003—Ejecting or stripping-off devices arranged in machines or tools dealt with in this subclass in punching machines or punching tools
    • 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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/28—Perforating, i.e. punching holes in tubes or other hollow bodies
    • 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
    • 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
    • Y10T83/00—Cutting
    • Y10T83/04—Processes
    • Y10T83/0596—Cutting wall of hollow work

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Cleaning In General (AREA)
  • Details Of Cutting Devices (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Adornments (AREA)

Abstract

A method and a device for removal of a slug separated from a hollow profile by means of a fluidic internal pressure from a hydroforming tool. The slug is separated from the hollow profile from the inside to the outside by the retraction of a plunger integrated into the hydroforming tool and clearing a slug channel when retracted, and is forced out of the die cavity of the hydroforming tool into the slug channel. Then, with the hollow profile in a zero-pressure state, the slug, which after it is pressed in abuts the end of the plunger, is removed by a removal tool from the hydroforming tool. In order to remove slugs from the hydroforming tool in any desired position of the slug channel that leads into the die of the hydroforming tool, in which the slug is initially received after perforation, in simple fashion, the slug is held at the end of the plunger during its stay in the slug channel by an adhesion means connected with the plunger. Then, after the hydroforming tool is opened and the finished hollow profile is removed, the slug, while continuing to adhere to the end of the plunger, is guided by means of the plunger and of the removal tool designed with adhesion means into the open die cavity. The slug and the area of the removal tool on which the adhesion means acts assume a relative position opposite one another, after which the slug is separated from the plunger and then adheres to the removal tool, by means of which the adhering slug is then removed from the hydroforming tool.
EP19990101944 1998-03-05 1999-01-30 Method and device for removing a slug from an internal high-pressure forming tool Expired - Lifetime EP0940200B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19809519 1998-03-05
DE19809519A DE19809519C1 (en) 1998-03-05 1998-03-05 Method of removal of core from pressure molded hollow workpiece

Publications (3)

Publication Number Publication Date
EP0940200A2 EP0940200A2 (en) 1999-09-08
EP0940200A3 true EP0940200A3 (en) 2000-05-03
EP0940200B1 EP0940200B1 (en) 2001-08-22

Family

ID=7859862

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19990101944 Expired - Lifetime EP0940200B1 (en) 1998-03-05 1999-01-30 Method and device for removing a slug from an internal high-pressure forming tool

Country Status (6)

Country Link
US (1) US6006566A (en)
EP (1) EP0940200B1 (en)
AT (1) ATE204520T1 (en)
CA (1) CA2264491A1 (en)
DE (2) DE19809519C1 (en)
ES (1) ES2162711T3 (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE59913144D1 (en) * 1998-10-23 2006-04-27 Alcan Tech & Man Ag Method and device for removing a Lochbutzens from a hydroforming tool
DE19859925C2 (en) * 1998-12-23 2002-12-05 Forschungsges Umformtechnik Method and device for removing slugs
EP1274523B1 (en) * 2000-02-22 2004-05-12 Cosma International Inc. Hydroforming flush system
US6662611B2 (en) 2000-02-22 2003-12-16 Magna International, Inc. Hydroforming flush system
US6401507B1 (en) * 2001-11-30 2002-06-11 General Motors Corporation Hydroforming, in-die hydropiercing and slug-ejecting method and apparatus
US6591648B1 (en) * 2002-06-24 2003-07-15 Greenville Tool & Die Company Method of stamping and piercing a tube
EP1560669B1 (en) * 2002-11-12 2008-07-02 Magna International Inc. Method of forming hydroformed member with opening
US7249480B2 (en) * 2004-09-24 2007-07-31 General Motors Corporation In-die hydropiercing device for piercing holes in hydroformed parts
DE102005033493B3 (en) * 2005-07-19 2006-09-28 Daimlerchrysler Ag Mold with a high internal pressure, where holes are punched through a hollow profile, flushes the mold zone with a fluid at atmospheric pressure to remove the hole disks with a sensor to count them according to the number of holes
US7104099B1 (en) * 2005-08-16 2006-09-12 Gm Global Technology Operations, Inc. Center support punch assembly for hydroforming die
US7111482B1 (en) * 2005-09-13 2006-09-26 Gm Global Technology Operations, Inc. Punch assembly for hydroforming die
KR100757595B1 (en) * 2006-04-29 2007-09-10 현대자동차주식회사 Hole piercing apparatus and method for tube of hydroforming
DE102007017420B4 (en) * 2007-04-13 2016-11-17 Daimler Ag Method and device for producing a hollow profile
BR112012002455B1 (en) * 2009-08-05 2019-11-05 Gi Di Mecc S P A method for obtaining an opening in a hollow body member and equipment for implementing the method
CN102172732B (en) * 2011-01-29 2013-01-16 昆山联德精密机械有限公司 Progressive die rounding and core-pulling mechanism
US9067252B2 (en) * 2013-10-30 2015-06-30 Caterpillar Inc. System and method of forming hole in blank during hydroforming process
CN106040791B (en) * 2016-07-29 2018-01-23 成都宏明双新科技股份有限公司 The mechanism and circle circle method of circle are longitudinally enclosed in a kind of progressive die using floating ladder core rod

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5398533A (en) * 1994-05-26 1995-03-21 General Motors Corporation Apparatus for piercing hydroformed part

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3991456A (en) * 1972-04-10 1976-11-16 Stanray Corporation Method of forming valve bodies
US4989482A (en) * 1989-11-17 1991-02-05 Ti Corporate Services Limited Method and apparatus for punching a hole in sheet material
DE4322063C2 (en) * 1993-07-02 1999-07-15 Schaefer Hydroforming Gmbh Method and device for cutting out a section of a wall of a hollow body produced by the hydroforming process
US5816089A (en) * 1996-11-26 1998-10-06 Dana Corporation Hydroforming apparatus having in-die hole piercing capabilities and a slug ejection system using hydroforming fluid

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5398533A (en) * 1994-05-26 1995-03-21 General Motors Corporation Apparatus for piercing hydroformed part

Also Published As

Publication number Publication date
DE59900203D1 (en) 2001-09-27
EP0940200B1 (en) 2001-08-22
ATE204520T1 (en) 2001-09-15
US6006566A (en) 1999-12-28
CA2264491A1 (en) 1999-09-05
ES2162711T3 (en) 2002-01-01
DE19809519C1 (en) 1999-07-01
EP0940200A2 (en) 1999-09-08

Similar Documents

Publication Publication Date Title
EP0940200A3 (en) Method and device for removing a slug from an internal high-pressure forming tool
EP1200211B1 (en) Method and apparatus for forming opposing holes in a side wall of a tubular workpiece
US5699708A (en) Punch press device
US5816089A (en) Hydroforming apparatus having in-die hole piercing capabilities and a slug ejection system using hydroforming fluid
CA2304629A1 (en) A hydroformed angled tubular part, and method and apparatus for making the same
US6591648B1 (en) Method of stamping and piercing a tube
CA2491434A1 (en) Method and apparatus for forming a structural member
WO1998051425A3 (en) Method of hydroforming a vehicle frame component
CA2400730C (en) Hydroforming flush system
CA2426029A1 (en) Apparatus and method for hydroforming a tubular part
CA2589659A1 (en) Method for forming tapered piston pins
US20030131643A1 (en) Hydroforming flush system
US20020020199A1 (en) Method and device for producing leadthroughs on hollow profiles
CA2674401C (en) Punch device for piercing hydro-formed member
EP1136155A3 (en) Process and device for removing punch rivets from a workpiece
US7503198B1 (en) Slug expanding and capturing apparatus and method for hydroforming application
WO2001083169A3 (en) Hollow body hole punching apparatus, system, and method
WO2000027563A3 (en) Metal forming apparatus and method of use
KR930019369A (en) Tool for cold forming of plastic film and forming method
WO2000048759A1 (en) Machine for forming t-shaped tubular components using a forming material insert
US20070157692A1 (en) Method and device for producing workpieces by means of internal high pressure forming
CA2505095A1 (en) Method of forming hydroformed member with opening
WO2005049245A8 (en) Hydroforming using high pressure pulsation during fluid intensification cycle
WO2005053891A3 (en) Cold form nozzle for laser processing
JP3011306B2 (en) Extrusion molding method

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT DE ES FR GB IT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20000401

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

AKX Designation fees paid

Free format text: AT DE ES FR GB IT SE

17Q First examination report despatched

Effective date: 20001215

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT DE ES FR GB IT SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20010822

REF Corresponds to:

Ref document number: 204520

Country of ref document: AT

Date of ref document: 20010915

Kind code of ref document: T

REF Corresponds to:

Ref document number: 59900203

Country of ref document: DE

Date of ref document: 20010927

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20011005

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20011122

ET Fr: translation filed
REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2162711

Country of ref document: ES

Kind code of ref document: T3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020130

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20070110

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20070119

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20070130

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20070111

Year of fee payment: 9

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20080130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080801

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20081029

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080130

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20080131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080131

REG Reference to a national code

Ref country code: FR

Ref legal event code: CD

Ref country code: FR

Ref legal event code: CA