Strains are introduced into bars by cold working in the straightening operation. If no treatment is applied to relieve the strains after the straightening operation, it is conceivable that they may be relieved in the canning process and cause warped slugs. The purpose of this test was to see if fewer non-seats would occur among slugs machined from bars that were outgassed after straightening. Seven hundred and thirty-five slugs from bars that were straightened before outgassing were caned by the standard procedure. One percent non-seats and 1.9% wrinkled cans were noted at the canning pot. It is recommended that all rods which are to be straightened be passed through the straightening operation before outgassing.

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