China Mechanical Engineering

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Optimization Method of Partitioned Complex Surface CNC Milling for Minimum Energy Consumption and High Efficiency

ZHAO Junhua1;LI Li1;LI Lingling1;LI Congbo2   

  1. 1.College of Engineering Technology,Southwest University,Chongqing,400715
    2.State Key Laboratory of Mechanical Transmission,Chongqing University,Chongqing,400030
  • Online:2019-01-10 Published:2019-01-08
  • Supported by:
    National Natural Science Foundation of China (No. 51405396)
    Fundamental Research Funds for the Central Universities(No. XDJK2017B051)

面向高效节能的复杂曲面分区数控铣削加工优化方法

赵俊花1;李丽1;李玲玲1;李聪波2   

  1. 1.西南大学工程技术学院,重庆,400715
    2.重庆大学机械传动国家重点实验室,重庆,400030
  • 基金资助:
    国家自然科学基金资助项目(51405396);
    重庆市基础与前沿研究计划一般项目(stc2016jcyjA0422);
    教育部中央高校基础科研业务费资助重点项目(XDJK2017B051)
    National Natural Science Foundation of China (No. 51405396)
    Fundamental Research Funds for the Central Universities(No. XDJK2017B051)

Abstract: Traditionally, the workpiece complex surfaces were machined by a specific cutting parameters and toolpath. In fact, the dynamic curvatures of complex surfaces had major impacts on energy consumption and machining time. The workpiece complex surfaces were partitioned into several patches according to the characteristics of surface curvatures and by using fuzzy clustering algorithm. Then for each patch, a set of orthogonal experiments were designed to determine the optimal cutting parameters and toolpaths aiming to minimize the machining time and energy consumption. Finally, the effectiveness of the proposed method was demonstrated through comparison of the partitioned complex surface milling and the traditional whole complex surface milling.

Key words: partitioned complex surface, milling, energy consumption, cutting parameter, toolpath

摘要: 复杂曲面加工常采用统一的切削参数和刀具路径完成整个曲面加工,未考虑复杂曲面几何特性变化对能耗和加工时间的影响关系。以复杂曲面为研究对象,根据曲面曲率特性并运用模糊聚类算法对复杂曲面进行分区。在此基础上,针对每一个分区曲面,采用正交试验方法确定能耗和加工时间综合最优的切削参数和刀具路径,即实现复杂曲面加工总能耗最低和加工时间最短。最后,将所提出的曲面分区铣削优化方法与传统曲面整体铣削方法作对比,验证了所提方法的有效性。

关键词: 复杂曲面分区, 铣削, 能耗, 切削参数, 刀具路径

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