Stamping by press and mold for sheet, strip, tube and profiles, such as external force, to produce plastic deformation or separation, to obtain the required shape and size of the workpiece (stamping) and stainless steel flange 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. Steel all over the world, there are 60 ~ 70% is plank, most of them after punching into finished products.
Flange stamping process
Used by stamping mold known as the stamping die, die for short. Die is the material (metal or non-metallic) processing into salt pieces of special tools required. Die is of vital importance in the flange stamping, did not conform to the requirements of punching die, stamping production batch is difficult; No advanced punching die, stamping process of advanced cannot achieve. Stamping process and die, stamping equipment and materials to form the three elements of stamping processing, can only draw stamping them together.
Compared with the castings, forgings, pressing with a thin, uniform, the characteristics of light and strong. Stamping can make other methods are difficult to manufacture with stiffener, ups and downs, or flange pipe fittings, in order to improve its stiffness. Because use precision mould, workpiece precision can reach micron grade, and repeat precision is high, the specification is consistent, can punch a hole nest, convex sets, etc. Cold stamping generally no longer by machining, or only need a small amount of machining. Hot stamping precision and surface state is lower than the cold stamping parts, but it’s still better than the castings, forgings, cutting processing capacity.
Source: Zhejiang Yaang Pipe Industry Co., Limited (www.yaang.com)