本科毕设论文_云母片冲压工艺及模具设计外文翻译.doc

Overview of stamping die Stamping die - in the cold stamping, material (metal or non-metallic) processed into parts (or semi-finished) a special process equipment, called cold stamping die (commonly known as cold die). Punching - is at room temperature, the use of a mold mounted on the press to exert pressure on the material, to produce a separation or plastic deformation, thereby obtaining a pressure processing method of the required parts.  Stamping die in the form of many, the general categories according to the following main features: 1. Classification under the craft nature(1) Die along the closed or open contour the material are derived from mold. If blanking die, punch die, cut off the mold, cut mode, cutting mode, split mode, etc.. (2) bending mode to blank or blank sheet along a straight line (curved line) to bend, deform, and thus obtain a certain angle and shape of the workpiece in the mold. (3) The drawing die is made of the blank sheet opening hollow, or hollow pieces of further changes to the shape and size of the mold. (4) Die rough or semi-finished workpiece is convex according to plan, direct copy the shape of the die shape, the material itself, generate only local plastic deformation of the mold. Such as the bulging mode, reducing the die, expansion die, forming die rolling, flanging mold, plastic mold. 2. According to the process combination classification (1) single process model in a press tour, just completed a die stamping process. (2) composite model is only one station, in a press tour, at the same station at the same time to complete more than two or two die stamping process. (3) Progressive Die (also known as the modulus of continuity) in the feeding direction, rough, with two or more of the station, at the press of a visit, work in different places on the completion of two or two successive Road over stamping die process.  The rushing Die called the cold stamping die.  Cold stamping die used in cold stamping