三维工序模型切削载荷动态变化的工艺优化策略

发布时间：2018-05-17 21:05

  本文选题：三维工序模型 + 布尔差运算　； 参考：《图学学报》2016年01期

【摘要】：综合零件的加工特征及约束条件并引入布尔差运算,可以分解出零件典型面组并生成对应的工艺路线谱系,达到零件加工工艺快速优化设计的目的。通过分析三维工序模型典型面组加工时的动态特性,采用B样条曲线插值参数化的方法构建刀具-工件接触区域动态边界的统一数学模型,预测切削载荷动态变化状况,并进行切削参数优化达到有效控制切削载荷的目的。最后以某零件的车削加工为例进行分析,验证该工艺优化策略的可行性。
[Abstract]:By synthesizing the machining characteristics and constraints of the parts and introducing Boolean difference operation, the typical surface group of the parts can be decomposed and the corresponding process route pedigree can be generated, which can achieve the purpose of rapid optimization design of the machining process of the parts. By analyzing the dynamic characteristics of 3D process model in typical surface group machining, a unified mathematical model of the dynamic boundary of cutter workpiece contact region is constructed by using B-spline curve interpolation parameterization method, and the dynamic change of cutting load is predicted. The cutting parameters are optimized to effectively control the cutting load. Finally, an example is given to verify the feasibility of the process optimization strategy.
【作者单位】： 北京理工大学先进加工技术国防重点学科实验室;
【基金】：国家自然科学基金项目(51105035)
【分类号】：TH162
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本文编号：1902863