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。
Integrating parts machining feature as well as constraints of various aspects, the right classification of typical surface groups is obtained by using of Boolean difference calculation. The surface groups is needed to generate typical process line spectrum for the sake of speeding up process design and optimization. According to the analysis of dynamic characteristics on the cut-part contact from the machining of difference three-dimensional process model typical surface groups, the dynamic cutting force prediction model of complex surface machining based on B-spline curves is used to analyze the changes of dynamic load, and effective control of cutting load is achieved through the optimization of cutting parameters. Finally, the turning of a part is carried out as a verification of the feasibility of the process optimization strategy.
出处
《图学学报》
CSCD
北大核心
2016年第1期49-55,共7页
Journal of Graphics
基金
国家自然科学基金项目(51105035)
关键词
三维工序模型
布尔差运算
工艺路线谱系
切削力预测模型
工艺优化
three-dimensional process model
Boolean difference calculation
process spectrum line
cutting forces prediction model
process optimization
