Upsetting of tube ends

Details Upsetting of tube ends Upsetting of tube ends

B - Operations, Transporting

21

K

78/26

B21K 21/12 (2006.01) B21D 41/00 (2006.01) B21J 9/06 (2006.01)

Patent

CA 1122446

UPSETTING OF TUBE ENDS Abstract of the Disclosure A method and apparatus for upsetting a tube end using a one-piece upset die. The tube is heated at the end to be upset and secured in a gripper clamp so as to remain stationary during the upset operation. The upset die is hydraulically forced over the tube end and a mandrel is hydraulically positioned into the tube end. A longitudinal compressive force is then hydraulically applied to upset the tube end. The upset die is hydraulically pulled off the upset tube and thereby accomplishing removal of the tube from the one- piece die without damage to the tube or the die.

337852

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