旋转超声加工机理的有限元分析.pdfVIP

旋转超声加工机理的有限元分析* 曹文国, 轧 刚 ( 太原理工大学 机械工程学院, 山西 太原030024) : 旋转超声加工是加工玻璃工程陶瓷和宝石等硬脆材料的有效方法, 具有较高的生产率 好的加工精度和表面质量在对其加工机理的研究过程中, 选用金刚石磨粒和玻璃工件进行建模, 运用 LSDYNA 软件对工件在加工中的应力变化情况和裂纹的产生与发展进行模拟, 结合试验结果, 对其加工 机理进行研究, 并对加工表面质量进行分析 : 超声加工; LSDYNA; 有限元 : T G 663 : A Finite Element Analysis on the Principle of Rotary Ultrasonic Machining CA O W enguo , YA Gang ( College of Me hani al Engineering, T aiyuan University of T e hnology , T aiyuan 030024, China) Abstract: Rotary ultrasoni ma hining( RUM) is an effe tive te hnology for the ma hining of hard and brittle materials, su h as glass, engineering erami , and diamond and so on. T his te hnology has high produ t ivity, and an obtain good ma hi ning a ura y and surfa e quality . In the pro ess of investigation, diamond grain and glass are sele ted to reat e a ma hining model. LSDY NA soft ware is used to simulate the st ress variations and the development of mi ro ra ks in the ma hining pro ess. Combining the experimental results, studies of the ma hining me hanism and t he analy sis on surfa e qualit y are also arried out. Key words: Ultrasoni ma hining , LSDY NA , FEM ) , Solid164 , , , 8 , , X YZ , [ 45] [ 1] M ar kov U stinov , 90, 0. 1 , mm, CONT ACTAUT OMAT ICSUR [ 2] M ar kov , FA CET OSU RFACE Z. J. , 0. 6 mm Pei, P. M . Ferrira M . haselkorn[ 3] , 0. 6 mm 0. 2 mm, , , 1/ 4 , 1a3 m/ s, 53 000 , , 4 000 ,