在引进汽车发动机生产线上对高速半精镗、精镗缸孔的CBN刀具进行了切削对比试验。
The comparison tests of CBN cutters for high speed boring cylinder blocks are carried out on the introduced car engine production lines.
加工工序是对活塞销孔和曲轴销孔的两侧端面倒角，并半精镗曲轴销孔，在负荷率100%时，生产率为每小时1000件。
The procedures are chamfering both sides of the gudgeon pin and crank pin core and semi-finishing the crank pin bore at a rate of 1000 pieces per hour at 100% efficiency.
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