What are the common bad phenomena of precision stamping parts? Dongguan Hardware will give you a list!

Common bad phenomena of precision stamping parts: 1. Cutting and cutting: (1) The wrong raw materials (red copper, brass, aluminum, etc.). (2) Whether the specifications and dimensions match the diagram (such as plate thickness, product length and width, etc.) (3) Peripheral cuts are uneven, too high, or too hard (aluminum plate, aluminum profile type must be within 0.1mm, iron plate, copper, tinplate must be within 0.05mm). (4) Materials Whether the surface is broken, blistering, scratched, damaged, oxidized, black spots, etc. (5) Whether there are scraps on the shearing machine and the mold, or damage the material. (6) The hardness and state of the material (such as hard copper, Soft copper, etc.). 2. Punching: (1) The hole position does not match the drawing requirements (a hole must have two sizes to determine the position). (2) Whether the hole type conforms to the drawing, such as smooth hole (through hole), Flanging holes (pumping holes), tapping holes. (3) Whether the size of the hole meets the requirements, such as tapping holes M4, M3, M2, #6-32, etc. bottom holes. (4) Whether the number of holes is correct ( (Lack of punching). (5) Whether there is blistering, cracking, burrs on the edge of the hole, whether the hole needs to be chamfered and its size. (6) Pay attention to the direction of the flanging of the flanging hole, and the flanging hole is flush and turned (7) Whether the punching sequence is correct (whether there is avoidance and whether it affects the size of other parts). (8) Punching and breaking the needle until there is no hole, or no flanging, or flanging Not in place. (9) When punching, there is waste on the needle tip, which damages the product; or the punching waste pops up on the mold or product and damages the product. If you want to know more about precision stamping parts, please consult