摘要
建立了基于拉格朗日增量法的切削有限元模拟模型并分析了正交干切削6061-T6过程中切削力以及切削温度的变化.工件材料的流动应力看成是应力、应变以及温度的函数.模拟过程从刀具切入工件开始直到达到稳态.计算结果包括切屑形态,以及应变、应力、应变速度和温度的分布.同样条件下的多组切削试验用于验证有限元模型的正确性.
A Lagrange finite element model is presented that simulates cutting forces and temperature distributions when orthogonal turning aluminum alloy. The effect of the large strain, strain-rate and tem- perature associated with cutting on the material properties is taken into account. The model predicts chip geometry, stress, strain and temperature distribution in he workpiece, chip, and tool. Cutting experiments were performed to validate the model.
出处
《暨南大学学报（自然科学与医学版）》
CAS
CSCD
北大核心
2010年第1期48-51,共4页
Journal of Jinan University(Natural Science & Medicine Edition)
基金
广东省自然科学基金项目(8151063301000004)
关键词
干切削
有限元
铝合金
dry turning
finite element method
aluminum alloy
