摘要
切削加工是木制品生产过程中的重要环节,随着高性能计算机的出现和软件技术的发展,有限元仿真方法为深入研究切削过程中的物理量、刀具磨损、切削加工表面质量等提供了强大的技术支持。对有限元方法进行了概述,并对木质材料切削加工有限元仿真中的一些重要环节,如材料本构模型的建立、有限元网格划分、切屑分离准则、摩擦模型作了重点介绍,总结了木质材料切削加工有限元仿真中的难点。
Cutting is an important part in the production process of wood products.With the emergence of high-performance computers and the development of software technology,finite element simulation methods provide powerful technical support for in-depth study on physical quantities,tool wear,and cutting surface quality improvement in the cutting process.The finite element method was summarized,and some important links in the finite element simulation of wood material cutting processing,such as the establishment of a material constitutive model,finite element meshing,chip separation criterion and friction models were mainly introduced,and the difficulties in finite element simulation of wood material cutting were summed up.
作者
张丰
朱兆龙
徐朝阳
伍占文
郭晓磊
ZHANG Feng;ZHU Zhao-long;XU Chao-yang;WU Zhan-wen;GUO Xiao-lei(College of Materials Science and Technology,Nanjing Forestry University,Nanjing Jiangsu 210037,China;College of Furniture and Industrial Design,Nanjing Forestry University,Nanjing Jiangsu 210037,China)
出处
《林业机械与木工设备》
2021年第6期38-42,46,共6页
Forestry Machinery & Woodworking Equipment
基金
国家自然科学基金项目“基于热力耦合的WPC高速铣削积屑瘤形成特性及其表面损伤控制研究”(31971594)。
关键词
切削加工
有限元仿真
本构模型
cutting
finite element simulation
constitutive model
