Apparatus for joining sheet material

Details Apparatus for joining sheet material Apparatus for joining sheet material

1991-08-23

1993-01-12

Echols, P. W.

Metal working

Means to assemble or disassemble

Means to drive self-piercing work part

29432, 2924353, 29509, 292835, B23P 1900

Patent

active

051778610

ABSTRACT:
There is disclosed an improved apparatus for joining a plurality of pieces of sheet metal or other sheet material items by first drawing and then laterally extruding portions of the material to be joined into an enlarged shape which will permanently mechanically interlock the sheet material pieces. The apparatus utilizes a novel die construction in which portions thereof are resiliently biased toward one another and pivot or slide laterally in response to lateral extrusion of the joining material to form a visually attractive joint having a rivet-like appearance.

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BTM Corporation--Tog-L-Loc & Lance-N-Loc Sheet Metal Joining Without Welding--6 pages.
BTM Corporation--Toc-L-Loc Sheet Metal Joining System--16 pages.
BTM Corporation--Stud-Loc Strength Data--1 page.

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