采用坐标法在普通机床上加工薄壁球面,虽然加工的工件是一系列圆柱体的组合,但在没有专用设备、专用工装的条件下,将球体微观化,也是一种有效的途径。图1中,工件材料为LC-4超硬铝合金,硬度为HB150左右,是内外球面,要求球面壁厚(2.5mm)均匀,表面粗糙度值较低,若直接装卡极易变形,为此,设计了工装,采用坐标法在精密车床上加工,达到了设计要求。现介绍加工工艺如下: (1)粗车内腔。将工件按图2加工,各处均留量 The use of coordinate method in the ordinary machine processing thin-walled spherical surface, although the processing of the workpiece is a series of cylindrical combination, but in the absence of special equipment, special tooling conditions, microscopic sphere is also an effective way. Figure 1, the workpiece material for the LC-4 super-hard aluminum alloy, hardness HB150 or so, is inside and outside the spherical, spherical wall thickness required (2.5mm) uniform, low surface roughness value, This, the design of the tooling, using the coordinate method in the precision lathe processing, to meet the design requirements. Now introduce the processing technology is as follows: (1) rough car cavity. The workpiece according to Figure 2 processing, are everywhere to stay