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我厂某产品的许多部件上,都有光泽度为▽▽5～▽▽6的孔。为了达到加工要求,这些孔要先用钻头钻出,再用扩孔钻加工,然后用铰刀铰光,并且铰孔的加工余量每边只能是0.05～0.25公厘。但由于买不到合用的扩孔钻,所以铰孔的加工余量每边都在0.4～0.5公厘。这样,铰孔后的光泽度就达不到要求,孔的表面常出现沟纹,而且铰刀的寿命很低。今年七月间,中压车间技术员朱志尚和钻工郭洪才,学习了上海机床厂的经验(原来是苏联的经验),应用阶梯铰刀成功,解决了铰孔光泽度不高的问题。用阶梯铰刀加工软钢件,光泽度一般可以达到▽▽6～▽▽▽7,并且提高生
Many parts of a product of our factory have holes of gloss ▽ ▽ 5 ~ ▽ ▽ 6. In order to meet the machining requirements, these holes must be drilled first with a drill and then reaming with a reamer, then reaming with a reamer, and the allowance for reaming can only be 0.05 to 0.25 mm on each side. However, due to the inability to buy a reaming drill, the reaming allowance is 0.4-0.5 mm on each side. In this way, after reaming the gloss does not meet the requirements, often appear on the surface of the groove groove, and reamer life is very low. In July this year, Zhu Zhi Shang, a medium-voltage workshop technician, and Guo Hongcai, a driller, studied the experience of the Shanghai Machine Tool Works (formerly the Soviet Union’s experience). The application of a step reamer succeeded in solving the problem of low reaming glossiness. Reamers with steel processing reamers, gloss can generally reach ▽ ▽ 6 ~ ▽ ▽ ▽ 7, and improve students