Attention should be paid to the increase of temperature in stamping process

Of the world's steel, 60 to 70% are plates, most of which are stamped into finished products. Car body, chassis, oil tank, radiator pieces, boiler drum, container shell, motor, electric iron core silicon steel sheet and so on are stamped. There are also a large number of stamping parts in instruments, household appliances, bicycles, office machinery and life utensils.



The stamping parts of Dalian are manufactured by stamping under the premise of little material consumption, and their parts are light and rigid. After the plastic deformation, the structure of the metal is improved, and the strength of the stamping parts is improved. The stamping part is a production technology that makes the sheet material directly deformed and deformed in the mould by means of the power of conventional or special punching equipment, so as to get certain shape, size and performance of the product parts. Sheet material, mould and equipment are the three elements of stamping. Stamping is a metal cold deformation processing method. Therefore, it is called cold stamping or sheet metal stamping, short for stamping.



General workpiece in stamping process, stamping process, especially in the cold forging forming process, temperature rises quickly, must add the lubricating products without the use of lubrication, lubrication and stamping, welding and assembling, no oil on the surface of parts for welding and assembly. The research and practice show that the application of the metal arc welding of metal extremely inert gas, tungsten arc gas shielded arc welding, and the application of resistance welding have the best result.



As a special forming technology of stamping, hydraulic or injection of elastic style forming technology includes multiple process, is a process of expansion or elastomer effective medium pressure into the internal pressure of slow growth; the other is a hydrostatic pressure forming process; there is a dynamic process such as extreme pressure.