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在大批量生产的超高强度钢零件上钻孔,是生产中的一个关键,为此采用喷射钻新工艺,取得了显著的经济效益,产品合格率提高百分之十五,钻孔效率提高16倍。零件材料为20CrMnSiNi_2,锻件。抗拉强度σ_b>160公斤力/毫米~2,硬度HB254～302。原来在Z37摇臂钻上采用钻—扩—铰工艺加工零件上两个φ34.05~(+0.17)×218的平行孔,需两个多小时才能加工一件,生产效率低、钻孔质量差、刀具损耗大。现改在C630普通车床上采用喷射钻一次钻成。
The drilling of high-strength steel parts in mass production is a key part of the production process, and the new technology of jet drilling has been adopted for this purpose. Significant economic benefits have been achieved with the passing rate of products increasing by 15% and the drilling efficiency being improved 16 times. Part material is 20CrMnSiNi_2, forgings. Tensile strength σ_b> 160 kg / mm ~ 2, hardness HB254 ~ 302. The original drilling on the Z37 rocker drill - expansion - hinge processing parts of the two φ34.05 ~ (+0.17) × 218 parallel hole takes more than two hours to process one, the production efficiency is low, the quality of drilling Poor, tool loss. Is now used in the C630 ordinary lathe jet drilling a drill.