High speed room temperature seam bonding of metal sheets

Details High speed room temperature seam bonding of metal sheets High speed room temperature seam bonding of metal sheets

B - Operations, Transporting

23

K

78/54

B23K 20/00 (2006.01)

Patent

CA 1051230

ABSTRACT OF THE DISCLOSURE An improved method of cold pressure welding a cover member to the edge of a hollow tubular member, with both mem- bers consisting of cold pressure weldable metal. The method comprises outwardly bending the end portions of the members to provide frusto-conical interfitting flanges. The cylindrical member is placed in a die wherein the die supports the flange on the cylindrical member. The cover member is mounted on a circular punch wherein the punch supports the flange on the cover member. The punch is positioned concentric with the die. A metallic interlay is placed between the faying surfaces of the members. The flanges and the interlay comprise the weld assembly. The punch is axially displaced relative to the die to compress the weld assembly thereby creating an intense inter- facial flow conducive to bonding of the members in a solid phase welding bond.

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