China Mechanical Engineering

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Tool Optimization for Splicing Die Milling Processes Based on Finite Element Simulation

YUE Caixu;LIU Xin;LIU Zhibo;XIE Na;WANG Yanwu   

  1. School of Mechanical and Power Engineering, Harbin University of Science and Technology, Harbin,150080
  • Online:2020-09-10 Published:2020-09-30

基于有限元仿真的拼接模具铣削用刀具优化

岳彩旭;刘鑫;刘智博;谢娜;王彦武   

  1. 哈尔滨理工大学机械动力工程学院,哈尔滨,150080
  • 基金资助:
    国家重点研发计划资助项目(2019YFB1704800);
    黑龙江省自然科学基金优秀青年基金资助项目(YQ2019E029);
    哈尔滨理工大学“理工英才”计划杰出青年基金资助项目(LGYC2018JQ015)

Abstract: ABAQUS software was secondary developed to realize splicing die rapid modeling of milling process simulation before treatment. The milling force, stress and cutting tool temperature were simulated, and compared with the milling experiments. Results verify the accuracy of the simulation model. The processes of milling splicing die for ball end milling cutter with different rakes, clearances, helical angles and cutting edge radii were simulated. The structure of milling cutter was optimized by genetic algorithm. The tool wear and workpiece surface quality were compared with the structure parameters after optimization and in tradition, so as to verify the effectiveness of the optimization. Research shows that the secondary development of rapid modeling is successful and the simulation results are accurate. The results provide fundamental basis for reducing manufacturing costs, improving milling tool life and workpiece surface quality.

Key words: splicing die, milling, finite element simulation, genetic algorithm, cutting tool optimization

摘要: 对ABAQUS软件进行了二次开发,以实现拼接模具铣削过程仿真前处理的快速建模。对铣削力、应力和刀具温度进行仿真,并与铣削实验结果对比,验证了仿真模型的准确性。对不同前角、后角、螺旋角及刃口半径的球头铣刀铣削拼接模具的过程进行模拟仿真,采用遗传算法优化铣刀结构,将优化后的结构参数与传统结构参数代入刀具磨损、工件表面质量的对比实验,从而验证了优化的有效性。研究表明,对仿真前处理进行快速建模的二次开发运行成功,模拟结果准确。研究结果为降低制造成本、提高铣刀寿命和工件表面质量提供了理论参考。

关键词: 拼接模具, 铣削, 有限元仿真, 遗传算法, 刀具优化

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