Abstract:
In order to produce the easy-drawing lids by the multi-position progressive die,an efficient cold impact die set the easy-drawing lids progressive die has been designed and manufactured. Its design and manufacturing process are introduced in this paper from the several aspects of the forming process,the stock layout,the die structure and the main die parts. On the condition of low guide precision of Chinese-built punching machine, the precision of the die parts can be reached by taking the way of double guiding. Besides,the processing method of precise parts during the die-making is also discussed. A solution is provided to solve the problem about the dropping of material in multi-position progressive die and the return of material in stretching compound die.