Title:
【発明の名称】二つ又はいくつか重ね合わせたシート状成形部材の接合方法,前記方法を遂行する装置及び前記方法による接合物
Document Type and Number:
Japanese Patent JPH07507499
Kind Code:
A
Abstract:
Two or several overlaying sheet formed members are joined together using an essentially coaxial arrangement of a punch, a die with a die cavity, and an anvil. A method for joining the sheet formed members comprises the steps of placing two or several overlaying sheet formed members between the punch and the die, causing a core portion of the punch to move in a direction toward the die cavity so as to co-act with the die cavity to form a cup-shaped or protruding portion having a side wall portion and a bottom wall portion, whereby a lateral extension provided around the rear end of the core portion deforms and axially displaces material from the area around the opening of the cup-shaped or protruding portion, mainly in the upper sheet formed member, moving the anvil in a second direction and locking it in a predetermined position relative to the die, a second relative movement of the punch in the direction towards the die compresses the bottom wall portion whereby a laterally enlarged shape is formed, mechanically interlocking the sheet formed members.
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Inventors:
De Huguenon, Olivier
Application Number:
JP52168194A
Publication Date:
August 24, 1995
Filing Date:
March 31, 1994
Export Citation:
Assignee:
Atexer Equipments S.A.
International Classes:
B21D39/03; (IPC1-7): B21D39/03
Attorney, Agent or Firm:
Shigeru Yagita (1 outside)