Stamping forming and precision requirements

Stamping process for mainly according to classification, can be divided into separation process and forming process two kinds big. Separation process is also called the blanking, and its purpose is to make from the sheet metal stamping parts along the contour line must be separated, and at the same time guarantee the quality requirements of the separation section. Forming process is designed to make sheet metal under the condition of not to break the billet occurred plastic deformation, made into the required shape and size of the workpiece. In the actual production, is often a variety of process integrated applied to an artifact. Cutting, bending, shear, deep drawing, bulging, spinning, correction is several main stamping process. Stamping is to rely on press and die for sheet, strip, pipe and profiles, such as external force, make its produce plastic deformation or separation, thus to obtain the required shape and size of the workpiece, Stamping parts) The forming method. Stamping and forging belong to plastic processing ( Or pressure processing) , called the forging press. Stamping of billet is mainly hot rolling and cold rolling steel plate and steel belt. Stamping equipment in addition to the thick plate with hydraulic press forming, generally adopts the mechanical press. In modern high-speed transfer mechanical press as the center, the configuration open book, flattening, collection, transmission machinery and tooling libraries and quick die change equipment, and use the computer program control, automatic stamping production line can be of high productivity. Stamping with sheet metal surface and internal performance of stamping has great influence on the quality of the finished product, request stamping material thickness precision, uniform; Smooth surface, no spots, no scar, no scratch, no surface crack, etc. ; Yield strength evenly, no obvious directivity; High uniform elongation; Showed low; Low strain hardening. The precision of the mould and structure directly affect the forming of stamping parts and precision. Mould manufacturing cost and quality of life is to affect the cost of stamping parts and an important factor. Mold design and manufacturing needs more time, it extended the new stamping production preparation time. Mold base, frame, guide the standardization and development of simple die, compound die, multi-station progressive die, as well as the development of quick die change equipment, can reduce the stamping production preparation work and shorten the preparation time, can make the apply to reduce the stamping production preparation work and shorten the preparation time, can make the suitable for mass production of advanced punching technology reasonably applied to small batch more varieties of production. Dongguan hardware stamping parts, hardware products factory in the previous: metal stamping parts processing and process control