Requirements for processing technology of metal stamping parts

1. The raw materials used in the processing of metal stamping parts must comply with GB 710-65 'Technical Prerequisites for High Quality Carbon Steel SheetsAnd meet the requirements for the supply status of materials or other aspects. 2. The raw materials of metal stamping parts should have a quality certificate, which guarantees that the materials meet the specified technical requirements. When there is no quality certificate or due to other reasons, the metal stamping parts manufacturer can select raw materials for re-inspection as needed. 3. Chemical analysis and metallographic maintenance: Analyze the content of chemical elements in the material; determine the grain size and average degree of the material; evaluate the level of free cementite, band structure and non-metallic inclusions in the material; check the material shrinkage , Looseness and other defects. Forming function test: conduct bending test and cupping test on the material, and determine the work hardening index n value and the plastic strain ratio r value of the material. Regarding the steel sheet forming function test method, it can be carried out according to the definition of the thin steel sheet forming function and test method. 4. The precision and surface condition of hot metal stamping parts are lower than that of cold metal stamping parts, but still better than castings and forgings, with less cutting processing. Measurement of other functional requirements: the measurement of the electromagnetic function of the material and the adhesion to the coating and coating. 5. Stamping can produce workpieces with reinforcing ribs, ribs, undulations or flanges that are difficult to manufacture by other methods to improve their rigidity. Because of the use of precision molds, the precision of the workpiece can reach the micron level, and the repeatability is high, the specifications are consistent, and holes, bosses, etc. can be punched out. Related news: The characteristics of the main materials of stamping parts, the handling of common problems of stamping parts, the characteristics of scaffolding stamping parts and the importance of inspections