Process introduction of metal stamping parts

Metal stamping parts include several steps. Stamping parts processing includes punching, bending, deep drawing, forming, finishing and other processes. The materials processed by stamping parts are mainly hot-rolled or cold-rolled (mainly cold-rolled) sheet metal materials, such as carbon steel plate, alloy steel plate, spring steel plate, galvanized plate, tin plate, stainless steel plate, copper and copper alloy Plate, aluminum and aluminum alloy plate, etc. The hardness test of metal stamping parts adopts Rockwell hardness tester. Small stamping parts with complex shapes can be used to test the plane is very small, can not be tested on the ordinary desktop Rockwell hardness tester. The advantages of the red punching process of automobile stamping parts: 　　1) Forming is basically not restricted by the external shape of the product parts; 　　2) The production uses common equipment, easy to put into production, suitable for small and medium-sized enterprises; 　　3) High productivity, suitable for mass production ；　　4) Due to the use of core-pulling device, the inside of the pressed part is hollow, which is not solid like the part processed by the forging die, and the thickness of the burr of the general small red die is about 0.5mm, while the forging mold The burr thickness of the part is generally above 2mm, so the material utilization rate is much higher than that of the forging die; 　　5) Red punching is a processing technology with less and no cutting, the surface roughness is close to the mold, and the dimensional accuracy can reach 6-7, so Its mechanical cutting volume is very small; 　　6) The mechanical properties of the red stamping parts are good, because the metal billet is heated, extruded, and cooled after the red stamping, and its metal structure changes, eliminating the original defects caused by casting or drawing , The internal crystal structure of the part is linear from the inside to the outside, which improves the mechanical properties of the red-punched parts; 　　7) After the red-punched parts, the internal grains of the metal have been refined, and the density of the metal has been enhanced , Improve the corrosion resistance of parts; 　　 8) Suitable for all kinds of colored or black metal processing. Related news: The characteristics of the main materials of stamping parts, the treatment of common problems of stamping parts, the characteristics of scaffolding stamping parts and the importance of inspections