Evaluation Criteria for Defects of Metal Stamping Parts (1)

With the development of society, metal stamping products are applied to all walks of life. In the processing and production of metal stamping parts, the product quality requirements are very strict. Whether the product meets the standard or the defect has a certain degree of grade, let's take a look below; Cracking of metal stamping parts: inspection method, visually A type defect: cracking can be noticed by users without training. The metal stamping parts with such defects are very serious, and the metal stamping parts must be frozen immediately after discovery; Type B defects: definite micro cracks that can be seen. This type of defect metal stamping parts are unacceptable in areas I and II. Repair welding and repairing in other areas is allowed, but the repaired parts are not easy to detect by customers and must be satisfied. Rework standard for stamping parts; Type C defects: defects that are ambiguous and confirmed after careful inspection. Stamping parts with such defects are repaired in Zone II, Zone III, and IV, but the repaired parts are not easy for customers to notice. And must meet the repair standards of metal stamping parts; metal stamping parts strains, coarse grains, dark scratches, inspection methods, visual A defects: strains, coarse grains, and dark scratches that can be noticed by users without training The metal stamping parts with such defects should be frozen immediately after being discovered; Type B defects: visible and definite minor strains, coarse grains, and dark scratches. Such defects can be stamped in the IV zone. Acceptable; Type C defects: minor strains, coarse grains, and dark scratches. The metal stamping parts of this type of defect are acceptable in Zone III and IV; detection methods for collapsed ponds: visual inspection, oilstone polishing, touch, oiling A Class defects: It is a defect that users cannot accept, and users without training can also notice that stamping parts must be frozen immediately after such collapsed ponds are discovered. Class A collapsed pond stampings are not allowed to exist in any area. Class B defect: It is a tangible and definite pit that is tangible and visible on the outer surface of the stamping part. Such pits are not allowed on the outer surface of the stamping parts I and II. Type C defects: defects that need to be corrected. Most of these collapsed ponds are ambiguous and can only be seen after the oilstone is polished. This type of stamped parts of the flat pond is acceptable. Article source: Introduction to the accuracy of stamping parts, what are the influencing factors? Previous post: Disassembly sequence and assembly sequence of metal stamping die