1, serious research stamping market thing no one. Stamping parts market chaotic.
2, home appliances, electrical appliances non standard fasteners stamping industry market competition is intense. But few small competitive enterprises.
3, some production capacity exceeds the demand, some makers in the stamping plant, put no, can't. One year production task, most of the time without market behavior.
In the market, technology development is restricted, the entire industry is backward, displays in:
1, the overall level is low, many industry overcapacity, lack good technology. Technological progress is slow.
2, material technology, mould technology, lubrication technology and equipment level is low, far cannot satisfy the needs of the development of domestic production.
Daily and household hardware stamping parts, such as POTS and pans, sink, kettle and other daily necessities, and such as washing machines, air conditioners, refrigerators, electric rice cooker and other home appliances;
Industrial types of metal stamping Steel investment casting parts: equipment chassis shell, vehicles and engineering machinery sheet metal stamping parts;
Close device class stamping parts: instrumentation components, connectors, etc.;
Ship class special stamping parts of the ship.
When the section of metal stamping parts quality and dimension accuracy requirement is high, can consider to add finishing process after blanking process or the fine blanking process directly.
Bending parts mainly depends on its socket screw plug structure in the shape of the number of process complexity, according to the number of the bending Angle and the relative position and the bending direction. When bending radius is less than the allowable values of bending parts, plastic process are increased after bending.
Number of tensile process and material properties, the number of ladder stretching height, stretching, and tensile condition such as the diameter, material thickness, subject to tension calculation to determine the machining process. When drawing a radius or small size accuracy requirement is high, the need to increase a plastic after stretching process.
In order to improve the stability of stamping process sometimes need to increase the number of working procedure, to ensure the quality of stamping parts. Blanking shape simple metal stamping parts, by a Stainless steel foundry single process of mould. Blanking shape complex artifacts, due to the structure of the mould or strength is limited, its inner and outer contour should be divided into several parts blanking, stamping process that needs to adopt more. When necessary, can choose continuous mode. Higher requirements for the flatness of metal stamping parts, can be in the cutting process after adding a leveling process.
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