Compared with castings and forgings, stamped bearings have the characteristics of thin, uniform, light and strong. Stamping can produce workpieces with stiffeners, ribs, undulation or flanging that are difficult to manufacture by other methods to improve their rigidity. Due to the use of precision mold, the workpiece accuracy can reach micron level, and the repetition accuracy is high, the specification is consistent, and the hole can be stamped out, the boss and so on. Bearing steel sheet for stamping requires accurate and uniform thickness of stamping material; Smooth surface, no spot, no scar, no abrasion, no surface crack, etc. The yield strength is uniform and has no obvious directivity. High uniform elongation; Low yield ratio; Low work hardening.

The value of hardware in the furniture accounted for 5%, but the operating comfort accounted for 85%, hardware as an essential part, can not only play a fixed role between the components, but also play a decorative role, and even have a finishing effect, but also affect the overall performance of all kinds of furniture. Once the important hardware accessories have problems, then the use of the entire furniture will be affected. The better the hardware accessories, the longer the use; The worse the quality, the furniture will often have problems in use, and the shorter the service life.

The process is complex, the equipment capacity is high, the elastic limit, the fatigue strength, the stress relaxation performance has very strict requirements for the material requirements and the heat treatment process technology.