罗恒;王优强;张平;

• 1:青岛理工大学机械与汽车工程学院
• 2:华东理工大学机械与动力工程学院

摘要(Abstract)：

为探究不同热处理工艺下7075铝合金超声振动切削残余应力的分布,基于AdvantEdge有限元分析软件对3种不同热处理工艺(O、T6、T73)下的7075铝合金进行超声振动切削加工仿真,得到残余应力随振动参数(频率和振幅)的变化规律。结果表明:随着超声振幅和振动频率的增大,3种热处理态下7075铝合金的残余应力均呈下降、上升再下降的"勺形"曲线;7075-T6态的残余应力值最大,7075-T73态次之,7075-O态最小;对仿真结果进行试验验证,可得仿真值与试验值吻合较好,为7075铝合金超声振动切削残余应力的控制提供一定的理论基础。

关键词(KeyWords)： 7075铝合金;热处理工艺;切削加工;超声振动;有限元

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51575289;51705270);; 山东省自然科学基金培养基金(2016ZRB01AJX)

作者(Author): 罗恒;王优强;张平;

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DOI:

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