基于DEFORM-3D的金属铣削过程仿真研究  

Machining simulation during metal milling based on DEFORM- 3D

作　　者：胡艳娟[1] 王占礼[1] 朱丹[1] 

机构地区：[1]长春工业大学机电工程学院,吉林长春130012

出　　处：《制造技术与机床》2014年第1期94-99,共6页Manufacturing Technology & Machine Tool

基　　金：国家自然科学基金资助项目(51105044);吉林省自然科学基金项目(201215129)

摘　　要：基于切削加工的热-弹塑性有限元理论,建立了金属正交切削加工的热力耦合有限元模型;分析、研究了材料的本构模型、断裂准则、接触摩擦特性以及热传导方程等切削加工模拟所涉及的关键技术;然后采用DEFORM-3D软件对45号钢进行了切削加工有限元模拟分析,预测了铣削加工切削力,同时得到了在热力耦合作用下的工件和刀具中的铣削力、非均匀应力场、应变场和温度场分布情况,并通过实验验证了有限元模型的正确性。The thermal-mechanical coupling finite element model for metal orthogonal cutting was built based on thermal elastic-plastic finite element theory. At the same time,the key technologies such as constitutive model of material,fracture criterion,contact friction character and heat conduction equation involved by cutting were analyzed and studied. Then,the finite element simulation for the milling of 45# steel was carried out by using the software of DEFORM3D. In the simulation,the milling force was forecasted, and the milling force of workpiece and tool under the action of thermal-mechanical coupling,the non uniform stress field and the distribution of strain field and temperature field were obtained. And the experiments show the correctness of the finite element model.

关 键 词：铣削加工 热力耦合 有限元模拟 

分 类 号：TH164[机械工程—机械制造及自动化] TP391.9[自动化与计算机技术—计算机应用技术]