板料n,r值对钣金零件成型工艺的影响

本文详细论述了板料成型性能指数ｎ，ｒ值的物理意义及其对各种钣金元件成型工艺性的影响，结合典型成型工艺，利用钣金冷压成型原理，对ｎ，ｒ值的具体影响进行了分析研究腹出了一些针对具体成型工艺的一般规律性的结论。将本文的一些概念和分析研究的结果同具体的生产实践相结合，则会对促进生产和提高成型件的质量有一定的指导意义。

The Effect of n and r Value on Forming Technique of Sheet-Metal Parts

The physical significance of forming property indexes n, r value of sheet metal and their effect on the forming technique of various sheet-metal parts are discussed in this paper. The analytical investightions of specific effects for n, r value are also made on the basis of cold moulding principle and the typical forming technique and some conclusions with general reqularity for the technique are obtained. These results have a directive func tion for pronoting the production and emproving the quality of forming pats.