摘要
热变形是影响数控工艺系统变形的重要因素。据统计,在精密加工中由于热变形引起的加工误差约占总误差的40%~70%。研究人员以小型立式数控铣平面加工为实例,分析系统热源并利用ANSYS Workbench对工艺系统进行热、力耦合分析,研究各热源对加工精度的影响,从而完成了部分改良方案的验证。
Thermal deformation is the key factor affecting the deformation of CNC processing system. Statistically, processing errors caused by thermal deformation in precision finishing account for 40% ~ 70% of total errors. In the case of precision finishing by small vertical milling machines, the researchers systematically analyzed the heat source, further made the thermodynamic and coupling analysis on the processing system with ANSYS Workbench and studied the influence on processing accuracy by all kinds of heat resources, so as to finish validation for some optimization schemes.
出处
《芜湖职业技术学院学报》
2020年第2期33-36,共4页
Journal of Wuhu Institute of Technology
基金
芜湖职业技术学院校级自然科学研究项目(Wzyzr201919)。
关键词
热变形
温度分布
切削热
有限元分析
最大变形量
thermal deformation
temperature distribution
cutting heat
finite element analysis
maximum deformation
