“一把刀”会议是活塞、活塞环,气缸套行业为解决行业间的共同关键问题的专题交流会。湖北第二内燃机配件厂为解决活塞销孔的精镗工艺,创造了活塞销孔镜面镗刀,使我国精镗孔工艺向前迈进了一大步。又经湖北第二内燃机配件厂、桂林农机配件厂及北京朝阳汽车配件厂等单位共同努力,在制作、研磨、调整、使用以至刀具结构上都有了新的改进。但由于是新事物,能掌握它的人不多。虽然在行业中推广过几次,可总是开花面不广。鉴于这把刀是活塞行业的急需, “A knife ” meeting is the piston, piston rings, cylinder liner industry to solve the key issues common between industry seminars. Hubei Second Internal Combustion Engine Parts Factory to solve the piston pin hole fine boring process, creating a piston pin hole mirror boring tool, so that our fine boring process a big step forward. And by the Hubei Second Internal Combustion Engine Parts Factory, Guilin Agricultural Machinery Parts Factory and Chaoyang Auto Parts Factory and other units work together in the production, grinding, adjustment, use and even the tool structure has been a new improvement. But because it is a new thing, there are not many people who can grasp it. Although several times in the promotion of the industry, can not always blossom is not wide. In view of this knife is the urgent need of the piston industry,