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一、概述所谓方圆过渡三维曲面,就是零件一端为圆形,另一端为n边形及其它形状的曲面,这类零件在钢铁工业中应用较多。图1为冷拉六棱钢材的模具图,该模具由两部分组成。一段带斜度,另一段是直壁部分。直壁部分为正六棱柱面,用普通线切割机床的x、y座标就能完成加工。斜度部分一端入口截面为圆形,另一端出口截面为六边形。象这样的异形零件,在生产中还没有一个理想的加工方法,有的工厂采用近似的力法,把模具分成几个截面铣削后,工人用手
First, an overview of the so-called radius of the three-dimensional surface transition is part of a round at the other end of the n-sided and other shapes of the surface, such parts in the steel industry more. Figure 1 for cold-drawn six-sided steel mold, the mold consists of two parts. A section with a slope, the other section is the straight wall part. Straight wall part of the positive hexagonal prism, with ordinary wire cutting machine x, y coordinates can be completed. The cross section at one end of the gradient section is circular and the cross section at the other end is hexagonal. Such shaped parts, in the production of an ideal processing method is not yet available, and some factories use approximate force method, the mold is divided into several cross-section milling, the workers hand