| 超硬织构化刀具高速切削钛合金试验研究 |
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| 引用本文： | 苏永生,李亮,王建彬,王刚.超硬织构化刀具高速切削钛合金试验研究[J].表面技术,2018,47(2):249-254. |
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| 作者姓名： | 苏永生 李亮 王建彬 王刚 |
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| 作者单位： | 安徽工程大学机械与汽车工程学院,安徽芜湖,241000
南京航空航天大学机电学院,南京,210016 |
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| 基金项目： | 安徽省高校自然科学研究重点项目（KJ2016A060）；国家自然科学基金（51375236）；安徽省重点研究与开发计划（1704a0902056）；安徽工程大学引进人才科研启动基金（2016YQQ001） |
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| 摘 要： | 目的研究高速切削钛合金过程中表面织构对刀具切削性能的影响。方法通过开展常规(无织构)和织构化聚晶金刚石(PCD)刀具高速切削钛合金试验,分析不同条件下切削力、摩擦系数、切削粘结的变化。结果增加切削速度能够有效降低PCD刀具的切削力和摩擦系数。当切削速度为16.485~175.84 m/min时,相对于无织构刀具,织构化刀具的干切削性能在总体上表现最佳,且织构化刀具在干切削时的进给抗力、主切削力和摩擦系数最大分别降低了约71.75 N、39.95 N、0.13。结论高速切削可以显著降低刀-屑界面的切削力、摩擦系数。织构化PCD刀具在低速下的干切削性能明显优于常规刀具,且优于低温润滑条件时的减摩效果。
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| 关 键 词： | 高速切削 超硬刀具 织构化 切削性能 干切削 high speed cutting superhard tools texturing machinability dry machining |
| 收稿时间： | 2017/10/23 0:00:00 |
| 修稿时间： | 2018/2/20 0:00:00 |
Super-hard Textured Tools in High Speed Machining Test of Titanium Al-loy |
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| SU Yong-sheng,LI Liang,WANG Jian-bin and WANG Gang.Super-hard Textured Tools in High Speed Machining Test of Titanium Al-loy[J].Surface Technology,2018,47(2):249-254. |
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| Authors: | SU Yong-sheng LI Liang WANG Jian-bin and WANG Gang |
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| Affiliation: | School of Mechanical and Automotive Engineering, Anhui Polytechnic University, Wuhu 241000, China,School of Mechanical and Electrical Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing 210016, China,School of Mechanical and Automotive Engineering, Anhui Polytechnic University, Wuhu 241000, China and School of Mechanical and Automotive Engineering, Anhui Polytechnic University, Wuhu 241000, China |
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| Abstract: | The work aims to study effects of surface texture on tool machinability during high speed cutting of titanium alloy. Changes of cutting force, friction coefficient and cutting adhesion under different conditions were analyzed by performing high speed cutting test of titanium alloy with conventional tools (un-textured tools) and textured polycrystalline diamond (PCD) tools. Cutting force and friction coefficient of PCD tools could be effectively reduced by increasing cutting speed. When the cutting speed ranged from 16.485 m/min to 175.84 m/min, compared with un-textured tools, textured tools exhibited the best dry machinability as a whole. Moreover, axial thrust force, main cutting force and friction coefficient of the textured tools could be reduced by up to 71.75 N, 39.95 N and 0.13. High speed machining can significantly reduce cutting force and friction coefficient of tool-chip interface. Compared with conventional tools, textured PCD tools can exhibit better dry machinability at low speed obviously, and have better anti-friction effect than that under the condition of low-temperature lubrication. |
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| Keywords: | high speed cutting superhard tools texturing machinability dry machining |
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