Metal stamping parts processing and production methods.
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Author:feite
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Published time: 2010-10-26
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The stamping part is the forming processing method of the workpiece (stamping part) with the required shape and size which is obtained by applying the external force on the plate, strip, pipe and profile by the press and the mould to produce plastic deformation or separation.Stamping and forging are plastic processing (or pressure processing), collectively known as forging.Blanks are mainly hot rolled and cold rolled steel sheets and strips.
Around 60 to 70 percent of the world's steel is made from sheet metal, much of it stamped into finished products.The automobile body, the chassis, the oil tank, the radiator piece, the boiler drum, the container shell, the electric machine, the electric appliance iron core silicon steel piece and so on are rammed processing.Instruments and meters, household appliances, bicycles, office machinery, household utensils and other products, there are also a large number of stamping parts.
Compared with castings and forgings, stamping parts are thin, even, light and strong.Stamping produces workpieces with stiffeners, ribs, undulations, or flanges that are otherwise difficult to produce to improve rigidity.Due to the use of precision mold, workpiece precision up to micron level, and repeat high precision, consistent specifications, can punch out holes, boss, etc.
Cold stamping parts are generally no longer machined or require only a small amount of cutting.The precision and surface state of hot stamping parts are lower than that of cold stamping parts, but they are still better than castings and forgings.
Stamping is an efficient production method, the use of composite die, especially the multi-station progressive die, can be completed in a pressure machine multiple stamping processes, from the material uncoiling, leveling, blanking to forming, finishing automatic production.High production efficiency, good labor conditions, low production cost, generally hundreds of pieces per minute.
Stamping is mainly classified according to the process, which can be divided into two categories:
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