东北大学学报:自然科学版 ›› 2020, Vol. 41 ›› Issue (6): 852-857.DOI: 10.12068/j.issn.1005-3026.2020.06.016

• 机械工程 • 上一篇    下一篇

球头铣刀加工钛合金零件的铣削力特性

张耀满, 李万鹏, 杨铭宇   

  1. (东北大学 机械工程与自动化学院, 辽宁 沈阳110819)
  • 收稿日期:2019-11-01 修回日期:2019-11-01 出版日期:2020-06-15 发布日期:2020-06-12
  • 通讯作者: 张耀满
  • 作者简介:张耀满(1972-),男,辽宁辽中人,东北大学副教授.
  • 基金资助:
    国家自然科学基金资助项目(51575092); 辽宁省教育厅项目(L20150184).

Milling Force Characteristics of Titanium Alloy Parts Machined by Ball-end Milling Cutter

ZHANG Yao-man, LI Wan-peng, YANG Ming-yu   

  1. School of Mechanical Engineering & Automation, Northeastern University, Shenyang 110819, China.
  • Received:2019-11-01 Revised:2019-11-01 Online:2020-06-15 Published:2020-06-12
  • Contact: ZHANG Yao-man
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摘要: 在钛合金的铣削加工过程中,切削力特性将对零件的最终加工质量有重要的影响.对用球头铣刀铣削钛合金工件的切削力特性进行研究.首先建立了用球头铣刀对Ti-6Al-4V铣削加工的切削力数学模型,并通过编写程序求解得出了瞬时切削力及其变化规律;其次建立了球头铣刀对Ti-6Al-4V铣削加工的有限元仿真分析模型,获得了铣削过程中铣削区域的应力场、温度场等;最后设计并完成了切削力测试实验,将得到的实验数据进行了正交分析.结果表明切削参数对平均铣削力影响程度大小的顺序为:轴向切深、每齿进给量、径向切深和主轴转速.

关键词: 球头铣刀, 钛合金, 铣削力特性, 有限元分析, 铣削力验证

Abstract: In the milling process of titanium alloy parts, the cutting force characteristics will exert an important influence on the final machining quality of the parts. The cutting force characteristics of milling titanium alloy with ball-end milling cutter are studied. Firstly, the mathematical model of cutting force for Ti-6Al-4V milling with ball-end milling cutter is established, and the instantaneous cutting force and its variation law are obtained by compiling program. Secondly, the simulation model of Ti-6Al-4V milling with ball-end milling cutter is established by using finite element analysis software, and the stress field and temperature field in milling area are obtained. Finally, the cutting force test experiment is designed and completed, and the experimental data are analyzed by orthogonal design. The results show that the influence of cutting parameters on the average milling force is in the order of axial cutting depth, feedrate per tooth, radial cutting depth and spindle speed.

Key words: ball-end milling cutter, titanium alloy, milling force characteristics, finite element analysis, milling force verification

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