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Stamping bearings

Stamping bearings

2020-04-22

Through the punch and mold on the plate, strip, pipe and profile applied external forces, so that it produces plastic deformation or separation, so as to obtain the required shape and size of the workpiece forming processing method, the workpiece is stamping.The stamping bearing is the forming and processing method that depends on the press and the mold to the plate, strip, pipe and profile and so on to apply the external force, causes it to produce the plastic deformation or the separation, thus obtains the required shape and the size of the workpiece (the stamping part of the stamping bearing).Stamping and forging belong to plastic processing (or pressure processing), collectively known as forging.The blanking stock is mainly hot and cold rolled steel plate and strip.Of the world's steel, 60 to 70 percent is plate, most of which is stamped into finished products.Automobile body, chassis, oil tank, radiator pieces, boiler drum, container shell, motor, electrical core of silicon steel pieces are stamping processing.Instruments, household appliances, bicycles, office machinery, household utensils and other products, there are also a large number of stamping parts.Compared with castings and forgings, rammed bearings are thin, even, light and strong.Stamping can make the workpiece with reinforcing rib, rib, fluctuation or flanging which is difficult to make by other methods, so as to improve its rigidity.Due to the use of precision mold, the workpiece precision up to the micron level, and high repetition precision, specifications are the same, can be stamped out holes, boss, etc.Rammed bearings are generally no longer machined, or only a small amount of machining is required.The precision and surface condition of hot stamping parts are lower than that of cold stamping parts, but still better than castings and forgings.Stamping is an efficient production method, the use of composite die, especially multi-station progressive die, can be completed in a press machine for multiple stamping processes, to achieve the strip material uncoiling, leveling, blanking to forming, finishing automatic production.High production efficiency, good labor conditions, low production cost, generally hundreds of production per minute.Stamping is mainly classified according to the process, can be divided into two categories of separation process and forming process.The separation process is also known as blanking, its purpose is to make the stamping parts along a certain contour line from the plate material separation, while ensuring the quality of the separation section requirements.The purpose of the forming process is to make the sheet metal produce plastic deformation without breaking the blank, and to make the workpiece of the required shape and size.In actual production, multiple processes are often applied to a workpiece.Blanking, bending, shearing, drawing, bulging, spinning and straightening are the main stamping processes.The surface and internal properties of stamping sheet have a great influence on the quality of stamping products.Smooth and clean surface, no spot, no scar, no scratch, no surface crack, etc.Uniform yield strength, no obvious direction;High uniform elongation;Low flexural strength ratio;Low working hardenability.

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