Deep drawing/deep drawing stamping parts quality in production process are analyzed

Deep drawing/deep drawing stamping parts is the use of mould plate blank or semi-finished blank drawing into hollow pieces in a cold stamping process. Deep drawing process can be made into products have: shape, spherical, conical, cylindrical, way of rectangular hollow parts and other various irregular openings. Deep drawing technology combined with other stamping process, can make complex shape parts, such as blanking process and the deep drawing process together the blanking of deep drawing die. In the daily life of common deep drawing products are: of revolving parts: such as enamel basin, aluminum pan. Square parts: such as lunch boxes, car tank. Complex parts, such as automotive covering parts. Today the author study together with everybody deep drawing stamping parts in the process of production will produce quality analysis; One, cracking, wrinkling, due to the blank-holder force is small, cause wrinkles, make it difficult to pull into the concave cavity model. 2, cracking, radial tensile stress is too big. Three, wrinkle: tangential compressive stress is too small, instability of four, an artifact edge serrated: rough edge have burrs. Five different, workpiece edge: blank center and mold center, or due to uneven material thickness, die radius, die clearance. Six, the dangerous section obviously thinning: radius ( The mold) Is too small, pressure force is too large. Seven, pulled off at the bottom of the artifacts: die fillet is too small. Material in the cutting state eight, work flange wrinkle: die fillet radius is too large, deep drawing pressure circle pressure less than outstanding, wrinkling after continue to be pulled into the die. 【 Relevant recommendation 】 Details: how much do you know the new energy automotive stamping parts? Details: sharing details of stamping processing industry: precision metal stamping parts figure how to draw, please be aware that this several steps