| 枪钻加工20CrMnTiH时切削性能的改进 |
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| 引用本文： | 汪萌,张伟,贺凤宝,胡建忠,王彬杰.枪钻加工20CrMnTiH时切削性能的改进[J].工具技术,2014(10):20-22. |
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| 作者姓名： | 汪萌 张伟 贺凤宝 胡建忠 王彬杰 |
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| 作者单位： | 大连工业大学 |
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| 摘 要： | 枪钻在加工20CrMnTiH材料时存在断屑难、排屑难导致刀具磨损、寿命降低等主要问题。本文对实际加工条件和被加工材料的特点进行分析后,修改了钻尖的几何参数来进行改进。经过一系列试验研究证明,改进后的枪钻解决了实际加工中断屑难、排屑难的问题,并使刀具寿命提高了两倍。
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| 关 键 词： | 枪钻 20CrMnTiH 断屑 排屑 |
Improvement of Gundrill Cutting in 20 CrMnTiH Drilling |
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| Wang Meng,Zhang Wei,He Fengbao,Hu Jianzhong,Wang Binjie.Improvement of Gundrill Cutting in 20 CrMnTiH Drilling[J].Tool Engineering(The Magazine for Cutting & Measuring Engineering),2014(10):20-22. |
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| Authors: | Wang Meng Zhang Wei He Fengbao Hu Jianzhong Wang Binjie |
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| Affiliation: | Wang Meng, Zhang Wei, He Fengbao, Hu Jianzhong,Wang Binjie |
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| Abstract: | The serious problem in processing 20CrMnTiH is the hard - break and evacuation of chips when drilling. It deal to the wearing of the gundrill and also reducing the tool life. Based on the experiences accumulated in gundrill geom- etry design, modifications of the drill point are proposed, adapting to the characteristics of this kind of workpiece and work- ing condition. Experiments and test - turn reveal that the chip can be break well and fluency discharged , also the tool life of drill increases by 2 times in comparison with that of the conventional ones. |
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| Keywords: | gundrill 20CrMnTiH chip-break chip-evacuation |
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