| 枪钻加工渗碳钢20Cr深孔时断屑性能的改进 |
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| 引用本文： | 张波,张伟,迟辉,张占阳.枪钻加工渗碳钢20Cr深孔时断屑性能的改进[J].工具技术,2008,42(8). |
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| 作者姓名： | 张波 张伟 迟辉 张占阳 |
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| 作者单位： | 1. 大连工业大学
2. IMC国际金属切削(大连)有限公司 |
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| 摘 要： | 在渗碳20Cr上加工细长孔时存在的主要问题是:散热困难和排屑不通畅。在分析了实际加工条件和被加工材料的特点后,优化了原有几何参数。经过在该材料上大量加工细长孔后,设计出一种新型枪钻。经试验验证:能够改善散热并使得切屑顺利排出,刀具寿命也因此延长了两倍。本文介绍了试验过程以及加工过程中对渗碳20Cr钻削断屑机理的进一步分析。
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| 关 键 词： | 枪钻 断屑 排屑 |
Gundrill Chip-breaking Improvement for Deep-hole Drilling on Carburizing Alloy Steel 20Cr |
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| Abstract: | Problem of heat dissipation and the chip-evacuation become intensified when deep-hole drilling on carburizing alloy steel 20Cr.Based on the experiences accumulated in gundrill geometry design,pertaining to the characterisdtics of this kind of workpiece and working condition.Experiments and test-run for drilling a deep-hole on the material.Confirm that the chip can be fluency discharged and tool-life of the drill increases by 2 times in comparison with that of a conventional ones.The experiment procedure,results and some insight of chip-evacuation mechanisms for carburizing alloy steel 20Cr drilling are presented. |
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| Keywords: | gundrill chip-break chip-evacuation |
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