EP2886218B1 - Procédé d'estampage de trous dans une tôle multicouches - Google Patents

Procédé d'estampage de trous dans une tôle multicouches Download PDF

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Publication number
EP2886218B1
EP2886218B1 EP14198813.9A EP14198813A EP2886218B1 EP 2886218 B1 EP2886218 B1 EP 2886218B1 EP 14198813 A EP14198813 A EP 14198813A EP 2886218 B1 EP2886218 B1 EP 2886218B1
Authority
EP
European Patent Office
Prior art keywords
punching
punch
crown
sheet metal
undercut
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.)
Active
Application number
EP14198813.9A
Other languages
German (de)
English (en)
Other versions
EP2886218A1 (fr
Inventor
Klaus Reitzig
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.)
Ws Wielaender & Schill
Original Assignee
Ws Wielander & Schill
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 Ws Wielander & Schill filed Critical Ws Wielander & Schill
Publication of EP2886218A1 publication Critical patent/EP2886218A1/fr
Application granted granted Critical
Publication of EP2886218B1 publication Critical patent/EP2886218B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/24—Perforating, i.e. punching holes
    • B21D28/34—Perforating tools; Die holders

Definitions

  • a device for punching holes can be used in sheets, which comprises a punch with a punch and a die.
  • This is in particular formed annularly with a substantially rectangular cross-section and consists of hardened steel.
  • the punching crown has a height between 0.5 and 2 mm and a width between 0.5 and 2 mm.
  • the pressure generator also includes the controls for initiating the punching operation.
  • the tool can be designed as a hand tool and has a bracket 15, are held within the die 2 and punches 1.
  • Fig. 5 shows a detailed representation of the area B of Fig. 4 .
  • the invention has made it possible for the first time to punch holes in thick, multi-layered sheets without jamming the punch. Furthermore, the cost of a punching operation can be reduced in a surprisingly simple manner by the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Punching Or Piercing (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)

Claims (4)

  1. Procédé permettant de pratiquer des trous dans une tôle (3) de préférence multicouche, dans lequel un poinçon (1) est utilisé, qui présente une contre-dépouille (9), et dans lequel au moins une partie du poinçon (1) est retirée ou tombe sur la face d'une matrice une fois un trou pratiqué et, ensuite, seule une partie à contre-dépouille du poinçon (1) est extraite par le trou pratiqué.
  2. Procédé permettant de pratiquer des trous dans une tôle (3) selon la revendication précédente, caractérisé en ce qu'un poinçon (1) est utilisé, qui présente un mandrin de poinçonnage (8) sur lequel est mise en place une couronne de poinçonnage (5), dans lequel la couronne de poinçonnage (5) présente un diamètre supérieur à celui du mandrin de poinçonnage (8) au moins dans la zone de sa profondeur de pénétration dans la tôle (3) et dans lequel la couronne de poinçonnage (5) tombe sur la face de la matrice (2).
  3. Procédé permettant de pratiquer des trous dans une tôle (3) selon l'une quelconque des revendications précédentes, caractérisé en ce qu'une tôle (3) présentant au moins une couche d'aluminium est poinçonnée.
  4. Procédé permettant de pratiquer des trous dans une tôle (3) selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un trou est pratiqué dans une tôle (3) multicouche d'une épaisseur supérieure à 3 mm, de préférence supérieure à 5 mm et de manière particulièrement préférée supérieure à 7 mm.
EP14198813.9A 2013-12-23 2014-12-18 Procédé d'estampage de trous dans une tôle multicouches Active EP2886218B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102013114806.9A DE102013114806B4 (de) 2013-12-23 2013-12-23 Verfahren zum Stanzen von Löchern in ein vorzugsweise mehrlagiges Blech sowie Stanzvorrichtung und Stanzkrone

Publications (2)

Publication Number Publication Date
EP2886218A1 EP2886218A1 (fr) 2015-06-24
EP2886218B1 true EP2886218B1 (fr) 2018-01-31

Family

ID=52231877

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14198813.9A Active EP2886218B1 (fr) 2013-12-23 2014-12-18 Procédé d'estampage de trous dans une tôle multicouches

Country Status (2)

Country Link
EP (1) EP2886218B1 (fr)
DE (1) DE102013114806B4 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017203229A1 (de) 2017-02-28 2018-08-30 Bayerische Motoren Werke Aktiengesellschaft Stanzstempel
DE102017203228B4 (de) 2017-02-28 2021-09-02 Bayerische Motoren Werke Aktiengesellschaft Stanzstempel, Stanzwerkzeug und Verfahren zum Stanzen
FR3112092B1 (fr) * 2020-07-03 2023-01-13 Gys Outil de poinconnage d’une tole ou d’un assemblage multi-couches de toles et procede de poinconnage correspondant.

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1288054A (en) * 1918-08-09 1918-12-17 Virginia Shipbuilding Corporated Adjustable die-holder.
US2413943A (en) * 1944-07-13 1947-01-07 Bolduc Albert Die removing device
US4403417A (en) * 1982-06-04 1983-09-13 Wilson Stephen K Draw punch
US4762043A (en) * 1987-03-23 1988-08-09 Jacob L. Reich Long wearing punch
US6508155B1 (en) * 1999-06-25 2003-01-21 Honda Giken Kogyo Kabushiki Kaisha Self-centering trim punch
US20060075871A1 (en) * 2004-10-13 2006-04-13 M.O.M. Tools, Llc Dual head punch with tapered neck
DE102011052350A1 (de) * 2011-08-02 2013-02-07 Gustav Klauke Gmbh Backenpaar zum Ausstanzen von Löchern

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EP2886218A1 (fr) 2015-06-24
DE102013114806B4 (de) 2015-10-01
DE102013114806A1 (de) 2015-06-25

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