What is a stamping

And? Let's introduce the manufacturing process of stamping parts to you. Stamping is by the press and mold on the plate, strip, pipe and profile, etc. to apply external force, so that it produces plastic deformation or separation, so as to obtain the required shape and size of the workpiece (stamping) of the molding process. Stamping and forging are plastic processing (or pressure processing), collectively known as forging. The blanks for stamping are mainly hot-rolled and cold-rolled steel plates and strips. Stamping is a high-efficiency production methods, the use of composite molds, especially multi-position progressive die, can be completed in a press on a number of stamping processes, geological exploration of the project's application of technology to achieve the strip by the uncoiling, leveling, punching to the forming, finishing fully automated production. High production efficiency, good labor conditions, low production costs, generally can produce hundreds of pieces per minute.

Stamping is mainly based on process classification, can be divided into two categories of separation process and forming process. Separation process, also known as punching, high-speed copper large pulling machine using a full set of polycrystalline die application, its purpose is to make the stamped parts along a certain contour line from the sheet separation, while ensuring that the separation of the quality requirements of the cross-section. The purpose of the molding process is to make the sheet in the condition of not breaking the blank plastic deformation, made of the required shape and size of the workpiece. In actual production, there are often a variety of processes applied to a single workpiece. Stamping, bending, shearing, deep-drawing, expanding, spinning, straightening are some of the main stamping processes.

Through the punch and die on the plate, strip, pipe and profile, etc. to apply external force, so that it produces plastic deformation or separation, so as to obtain the required shape and size of the workpiece forming processing methods, the workpiece is stamped parts.

Stamping can produce other methods difficult to manufacture with reinforcement, ribs, undulations or flanging of the workpiece to improve its rigidity. As a result of the use of precision molds, copper-clad steel strand, workpiece accuracy up to the micron level, and repeatability, high precision, consistent specifications, can be stamped out of the hole, such as convex, stamping and castings, forgings, compared with thin, uniform, light, strong features.

Cold stamped parts are generally no longer by cutting, or only a small amount of cutting. Hot stamping precision and surface condition is lower than cold stamping, but still better than castings, forgings, less cutting. Stamping with the surface of the sheet and the inner performance of the finished product of stamping has a great impact on the quality of the stamping requirements of stamping material thickness is accurate, uniform; surface finish, no spots, no scars, no abrasions, no surface cracks, etc.; yield strength uniformity, no obvious directionality; uniform elongation is high; low flexural strength; low work-hardening.