Title:
【発明の名称】突起溶接パネルスペーサー及びその製造方法
Document Type and Number:
Japanese Patent JP2001523579
Kind Code:
A
Abstract:
A method for making a spacer assembly comprises: forming a plurality of projections along an edge of a portion of sheet metal; roll forming the portion of sheet metal into a tubular configuration; positioning the roll formed portion of sheet metal and a metal base member to which the roll formed portion of sheet metal is to be welded in a discharge welding apparatus having a pair of electrodes so that the projections of the roll formed portion of sheet metal contact a surface of the metal base member; providing a force so that the projections are disposed in forcible engagement with the surface of the metal base member; and supplying an electrical current between the pair of electrodes and through the roll formed portion of sheet metal and the metal base member so that the projections reach a molten metal stage and are subsequently solidified to enable the roll formed portion of sheet metal to be welded to the metal base member.
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Inventors:
Gas, bruno
Application Number:
JP2000521000A
Publication Date:
November 27, 2001
Filing Date:
November 12, 1998
Export Citation:
Assignee:
Cosma International Inc.
International Classes:
B21D35/00; B21D47/00; B23K11/00; B23K11/14; B23K33/00; B62D21/09; (IPC1-7): B23K11/14; B62D21/09
Attorney, Agent or Firm:
Atsushi Nakajima (2 outside)