The main member is a metal stamping or non-metallic sheet, by the pressure of the press, by the press-forming die pressing process product pieces. As a result of precision molds, up to micron precision parts, and high repeatability, consistent specifications, holes can be punched out of the socket, boss or the like.
1. Stamping type
punching mainly by the classification process, and the separation step can be divided into two categories forming step.
(1) separation step, also known as punching, stamping its purpose is to separate from the sheet along a contoured line, while maintaining the quality requirements of the separation section. Objective
(2) step of molding so that the sheet is plastically deformed without breaking the blank, into a desired shape and size workpieces. In actual production, it is often applied to a workpiece more comprehensive process.
2. Stamping characteristics
(1) pressing with high dimensional accuracy, with uniform module dimensions, better compatibility. No further machining to meet the general requirements of assembly and use.
(2) via cold stamping machining generally no, or only a small amount of machining. Hot stamping precision and surface state below the cold stamping, but still better than casting, forging, machining less.
(3) stamping during the stamping process, because the surface material is not damaged, and therefore, better surface quality, smooth and beautiful appearance, which provides a surface painting, electroplating, and other surface treatments phosphate convenient conditions.
(4) stamping under the premise of less material consumption, manufacturing stamped out, its light weight parts, stiffness, and the plate material after the plastic deformation, internal organizational structure of the metal is improved make stampings intensity increased.
(5) compared with stampings castings, forgings, with a thin, uniform, light, strong features. Punching the workpiece can be made with other methods difficult to manufacture reinforcing ribs, ribs, undulations or flanging, in order to improve its rigidity.