Inspection method for stamping parts with grinding defects and grinding marks

Inspection method for stamping parts with grinding defects and grinding marks

Inspection method for stamping parts with grinding defects and grinding marks

Inspection method: visual inspection, whetstone polishing

Inspection standards:

Type A defect: It is worn through and is clearly visible on the outer surface, which is immediately visible to all customers. The stamped parts must be frozen immediately after such stamping is discovered

Type B defects: It can be seen and touched, and it can be proved after polishing in disputed areas that such defects are acceptable in areas III and IV. Type C defects: It can be seen after polishing with oilstone, and stamping parts with such defects are acceptable.

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