我公司为国产轿车生产零部件 ,品种多 ,批量大 ,需要控制不同尺寸的工件孔径。批量生产的工件孔径普遍用圆形塞规检验 ,圆形塞规通常采用整体式 ,材料采用含碳量为 1 0 %的高级碳素量具钢制作。工作中 ,圆形塞规经大量使用后其测头磨损超差 ,需要更换 ,只好整体报废。为此 ,我 My company produces parts for domestic cars, many varieties, large quantities, the need to control different sizes of workpiece aperture. Commonly used in mass production of the workpiece hole diameter plug gauge test, the general use of circular plug gauge monolithic, carbon material with a carbon content of 10% advanced carbon steel. Work, the circular plug Gauges after extensive use of its probe wear tolerance, need to be replaced, had to scrap the whole. For this, me