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江南机器厂十一事业部担负该厂302产品关键零部件的加工,其结构复杂,精度要求高,加工难度大。以其中的一个零件为例,有161个尺寸,62个孔,最薄处只有1毫米左右,但必须能承受170千牛顿的静压力,而且形态复杂,变形量大,加工工序多达39道,加工周期长达3个月,工序越往后走,报废损失越大。1988年,该产品由科研试制转入大批量生产,由于工人的质量意识和技术素质不
The 11th Division of Jiangnan Machinery Factory is responsible for the processing of key parts and components of the company’s 302 products. Its complex structure, high precision requirements, and processing difficulties. Take one of the parts for example. There are 161 dimensions, 62 holes, and the thinnest point is only about 1 mm, but it must be able to withstand the static pressure of 170 kilonewtons, and the shape is complex, the deformation is large, and the number of processing procedures is as many as 39. The processing cycle is as long as 3 months. The more the process goes, the greater the loss of scrap. In 1988, the product was transferred from trial production to mass production, due to the lack of quality awareness and technical quality of workers.