What are the requirements for the quality of stamping parts

Stamping is a forming and processing method of applying external force to plates, strips, pipes and profiles through presses and dies to produce plastic deformation or separation, so as to obtain workpieces (stampings) of desired shape and size. Stamping and forging belong to plastic processing (or pressure processing), collectively referred to as forging. Stamping blanks are mainly hot-rolled and cold-rolled steel plates and strips. Generally speaking, the surface quality judgment methods of stamping parts are divided into visual inspection and touch inspection: visual inspection: no obvious material defects such as cracks, shrinkage, shrinkage, deformation, material defects, wrinkles, accumulation, etc. Touch: No obvious burrs, indentations, scratches, rough rounded corners, etc. The molding quality inspection mainly includes the consistency inspection of molding size, molding quantity and molding characteristics. Checking tool: The tolerance of the installation round hole size is not more than 0.5mm, the size tolerance of the waist round hole is not more than 1mm, and the straightness error is not more than 3mm (l≤6m)/pass the inspection tool. Repair quality inspection standards refer to the inspection standards for qualified products, which mainly include appearance inspection and dimensional inspection, with special attention to quality inspection at repair points. Visual inspection: no obvious material defects such as cracks, shrinkage, shrinkage, deformation, material defects, wrinkles, accumulation, etc. Touch: No obvious burrs, indentations, scratches, rough rounded corners, etc. Checking fixture: The forming size meets the tolerance requirements of the design drawings or passing the inspection. Quality requirements. 1. Stamping parts must be cleaned, maintained and corrected regularly in strict accordance with the use specifications, and a written mold use record file must be formed. 2. For other stamping process requirements, please refer to specific product technical requirements.