一点体会史文清工作中曾经遇到如图１的衬套，材料为黄铜（Ｈ６２），批量不大，尺寸小，在加工六等分的１ｍｍ槽时困难于装夹而遇到困难。我们用线切割加工时，先用１．５ｍｍ的薄钢板割了一个中心为圆的六等分（六边形）二类胎具，如图２。因工件的外圆为精加工的，尺寸... Some experience Shi Wenqing encountered in the work of the bushing shown in Figure 1, the material is brass (H62), small batch, small size, difficult to clip in the processing of six 1mm slots and encountered difficulties. We use wire cutting, the first 1.5mm thin steel plate cut a circle of six equally divided (hexagonal) second-class tire, shown in Figure 2. Due to the outer cylindrical workpiece for finishing, size ...