Method of manufacturing springs, including the production of...

Details Method of manufacturing springs, including the production of... Method of manufacturing springs, including the production of...

B - Operations, Transporting

21

F

26/163

B21F 35/00 (2006.01) B23P 15/00 (2006.01) C21D 9/02 (2006.01) C21D 9/52 (2006.01)

Patent

CA 1107042

METHOD OF MANUFACTURING SPRINGS, INCLUDING THE PRODUCTION OF ROD THEREFOR Abstract of the Disclosure The method of manufacturing coiled springs from hot-rolled steel rod (as distinguished from drawn wire) wherein round steel rod is formed by hot rolling with the gauge of the rod within a tolerance of +0.010 inch and the rod not out of round more than a maximum of 0.015 inch, oil tempering the rod as produced in the hot rolling operation, without drawing it, by passing it through an austenitizing step, an oil quenching step and a tempering step, and winding springs from the oil tempered rod.

320420

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