| TC4钛合金切削中切屑塑性变形分析 |
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| 引用本文： | 刘东.TC4钛合金切削中切屑塑性变形分析[J].宇航材料工艺,2017,47(4):71-74. |
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| 作者姓名： | 刘东 |
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| 作者单位： | 北方工业大学机械与材料工程学院, 北京 100144 |
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| 基金项目： | 北京市自然科学基金资助项目（31123027）；北京市教委科技计划项目（KM201410009004） |
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| 摘 要： | 对TC4钛合金切削过程中锯齿形切屑形成过程和切削力的关系进行了实验研究,并对锯齿形切屑形成中微观塑性变形区进行了分析。结果表明:当切削速度大于48.75 m/min时,切屑由带状转变为锯齿形。锯齿形切屑的形成导致了切削过程中切削力的波动变化,切削力与切屑的锯齿形变化规律一致,锯齿形切屑形成中塑性变形区的宽度随切削速度的增加而减小。
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| 关 键 词： | TC4钛合金 切削速度 锯齿形切屑 塑性变形 切削力 |
| 收稿时间： | 2016/11/22 0:00:00 |
Analysis of Chip Plastic Deformation During Machining of Titanium Alloy TC4 |
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| LIU Dong.Analysis of Chip Plastic Deformation During Machining of Titanium Alloy TC4[J].Aerospace Materials & Technology,2017,47(4):71-74. |
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| Authors: | LIU Dong |
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| Institution: | College of Mechanical and Material Engineering, North China University of Technology, Beijing 100144 |
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| Abstract: | The relationship between the forming process of serrated chip and the cutting force in the cutting process of titanium alloy TC4 was studied, and the micro plastic deformation zone in the formation of serrated chip was analyzed.The experimental results indicate that the chip is changed from strip chip to serrated chip while the cutting speed is more than 48.75 m/min. The serrated chip formation process leads to the fluctuation of cutting force in the cutting process. The variation of cutting force is consistent with the variation of serrated chip. The width of the plastic deformation zone decreases with the increase of the cutting speed. |
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| Keywords: | TC4 Titanium alloy Cutting speed Serrated chip Plastic deformation Cutting force |
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