5、ang'YanAbstract: In the traditional industrial production, the worker works very hard and there are too much work for them, so the efficiency is low. With the development of the science and technology nowadays, the use of punching die in the industrial production gain more attention, and be used in
6、the industrial production more and more. Self-acting feed technology of punching die is also used in production, punching die could increase the efficiency of production and could alleviate theworkburden，so it has significant meaning in technologic progress and economic value. This article describes
7、 the anti-theft lock picks cold stamping process ，and a brief analysis of the blank shape, size, layout, the Conference Board, stamping processes in nature, number and sequence determination. For the
