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Deep drawing parts are the use of stamping, pull ring or metal mold of the process of deformation of the sheet metal material into a cylindrical or box shaped parts.
The deep drawing process is extremely complex, and the choice of materials should be considered in practice.
Different materials have different tensile properties. The ratio of the diameter of the blank and the diameter of the punch. Stainless steel material is controlled at 2.1 to 2.2 and carbon steel is controlled at between 2.15 and 2.5. Stainless steel material can be pulled second times deep drawing, but unlike carbon steel materials, stainless steel materials are usually not the same degree of tension with the first, unless the heat treatment.
The stainless steel material requires 1 to 2 times the strength of the carbon steel material. Generally speaking, the best use of double acting hydraulic equipment.