我厂引进技术产品中有一种齿条,以其齿条坯的窄(25mm)、薄(16mm)、长(800mm)和齿部的精度高(6级)而成为加工中的关键零件。产品试制时,该零件靠外协,不但质量达不到要求,还存在费用高、供货不及时等弊病。为此,我们成立了攻关组。攻关组立足本厂条件,在没有齿条插齿机的情况下, There is a kind of rack in the technical products imported from our factory, which is the key part in the machining with narrow (25mm), thin (16mm), long (800mm) and high precision (6 grades) Product trial, the parts rely on the Association, not only failed to meet the quality requirements, there are high costs, delivery is not timely and other ills. To this end, we set up a research team. Research group based on factory conditions, in the absence of rack gear slotting machines,