基于DEFORM的铝合金铣削有限元数值模拟  

Numerical Simulation of Aluminum Alloy Milling Based on DEFORM Finite Element

作　　者：周娜[1] 郭巨寿 王向明[1] 卢继平[3] 

机构地区：[1]中北大学机电工程学院,太原030051 [2]山西柴油机工业有限责任公司,大同037036 [3]北京理工大学机电一体化中心,北京100081

出　　处：《柴油机设计与制造》2013年第3期40-44,共5页Design and Manufacture of Diesel Engine

基　　金：国家自然科学基金资助项目(51275489)

摘　　要：通过建立变厚度切削层工件模型和三维螺旋刃铣刀模型,并运用局部细化网格和自动网格划分技术对有限元模型进行处理,以达到精度和模拟时间的平衡。针对航空铝合金7050-T7451进行了两齿螺旋刃铣刀铣削加工数值模拟,并对比相同条件下的模拟结果和实验结果,对比发现铣削力和切屑形状都与实际比较一致。To get balance between the accuracy and the simulated time, the paper established models of variable thickness cutting layer work and three-dimensional spiral milling cutter. Partial refining grid and automatic grid divided technology was used in the processing of models. Furthermore, numerical simulation on bi-gear spiral milling cutter milling was done to the aerolite 7050-17451. From the simulation and experimental results in the same condition, concordance between milling force and chipping shape was gained lastly.

关 键 词：变厚度切削层 次摆线 螺旋刃铣刀 铝合金 

分 类 号：TG54[金属学及工艺—金属切削加工及机床]