Six, clean up: 1. According to the request of the workpiece and the surface condition using alkaline cleaning, water soluble detergent, chloride solvent sand blasting, shot peening method to clean up 2. Don't usually adopt the method of acid pickling to clean up Seven, correction: 1. The workpiece using static load to correct, should not be commonly local rap 2. Should be corrected to stress under the lower than the original tempering temperature annealing 3. Strict complex shape or size of workpiece, the rectified by setting fixture during tempering combining temper to correct 4. Austenitic stainless steel workpiece, adjusted to deal with the stress under 300 DHS