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我厂制造T4163座标镗床,镜面轴(圆柱形刻线尺)的加工是制造中的关键。它用的原材料为2Cr13,要求表面光洁度达▽▽▽▽14,有极好的镜面反射性能,不允许有麻点、细痕等疵病,并要有足够的稳定性。为达到上述要求,我厂学习外地经验,对镜面轴加工进行了一系列试验研究,取得一定成果。它的加工工艺过程是:粗车→退火→车→调质→精车→酸冼→粗磨→定性→半精磨→定性→精磨→双轮珩磨→抛光→刻线。
I plant manufacturing T4163 standard boring machine, mirror axis (cylindrical ruler) processing is the key to manufacturing. It uses raw materials 2Cr13, requiring surface finish of ▽ ▽ ▽ ▽ 14, has excellent specular reflection properties, does not allow pitting, fine marks and other flaws, and to have sufficient stability. In order to meet the above requirements, our factory has learned a lot of experience in the field and conducted a series of experimental studies on the processing of the mirror shaft with some achievements. Its processing technology is: rough car → annealing → car → quenched and tempered → fine car → acid Xian → Rough → Qualitative → semi-fine grinding → qualitative → fine grinding → double wheel honing → polishing → engraved line.