Stamping parts processing of various problems in the plan
Most in the steel are made by stamping products, stamping can make other methods are difficult to manufacture with rib stiffener, flanging, ups and downs, or artifacts, in order to improve its stiffness. And stamping parts compared with castings, forgings, has the characteristics of thin, uniform, light and strong, workpiece precision can reach micron grade, and repeat precision is high, the specification is consistent, can punch a hole nest, convex sets, etc. Stamping is to rely on press and die for sheet, strip, pipe and profiles, such as external force, to produce plastic deformation or separation, to obtain the required shape and size of the workpiece forming method. In the process, will inevitably encounter some problems, how to deal with and response? When when the workpiece stamping parts processing, and the cross section quality and dimension accuracy requirement is high, can add finishing process after blanking process or the fine blanking process directly. In order to improve the stability of precision stamping process sometimes need to increase the number of working procedure, to ensure the quality of stamping parts. Most of the time, number of bending process mainly depends on the shape of the structure complexity, according to the number of the bending Angle and the relative position and the bending direction. When bending radius is less than the allowable values of bending parts, plastic process are increased after bending. Likewise, the number of deep drawing process and material properties, drawing height, the number of deep drawing step, and deep drawing condition such as the diameter, material thickness, need to the deep drawing process can be determined. When drawing a radius or small size accuracy requirement is high, need to increase a plastic after deep drawing process. On this basis, the number of stamping process should also conform to the enterprise existing modelling ability and the condition of stamping equipment. Model-making abilities should be able to meet the requirements of mould processing and assembly accuracy increase, otherwise can only increase the number of processes. In blanking shape simple artifacts, by a single process of mold is complete; Opposite blanking shape complicated stampings, due to the structure of the mould or strength is limited, its inner and outer contour should be divided into several parts blanking, stamping process that needs to adopt more.
