Method of rolling a simulated hole in sheet metal without...

Details Method of rolling a simulated hole in sheet metal without... Method of rolling a simulated hole in sheet metal without...

B - Operations, Transporting

21

D

113/66

B21D 5/00 (2006.01) B21D 17/04 (2006.01) B21H 8/00 (2006.01)

Patent

CA 1236343

5 ABSTRACT OF THE DISCLOSURE A method of fabricating sheet metal is described wherein a simulated opening for a threaded fastener is formed in sheet metal solely by roll forming a U-shaped loop segment in the sheet metal and then creating a simulated opening therein by crimping the sheet metal around a pin removably inserted in the loop segment. The simulated opening or hole is of sufficient depth to accommodate the entire length of the fastener and is formed without any drilling or punching operations.

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