现代机械制造工艺及精密加工技术的应用  

Application of Modern Machinery Manufacturing Process and Precision MachiningTechnology

作　　者：黄玉明 Huang Yuming(Shandong Electrician&Electric Hitachi High Voltage Switchgear Co.,Ltd.,Jinan Shandong 250104,China)

机构地区：[1]山东电工电气日立高压开关有限公司,山东济南250104

出　　处：《现代工业经济和信息化》2024年第8期179-181,共3页Modern Industrial Economy and Informationization

摘　　要：铝合金复杂薄壁件在加工过程中,受到铣刀和夹具的作用力,容易出现较大的变形,降低了工件的加工精度。为了解决该问题,研究过程以薄壁铝合金导轨为分析对象,建立铝合金材料切削时的应力计算模型,借助有限元仿真技术模拟最佳的装夹方式、装夹作用力以及机械加工参数。结果显示,此类构件宜采用底部设置压板、两侧设置支撑点的装夹方式,通过合理控制装夹作用力和加工参数,可将变形量和内应力降至较低的水平,从而实现精密加工。Complex thin-walled parts of aluminium alloy are susceptible to large deformation during machining by the force of milling cutter and fixture,which reduces the machining accuracy of the workpiece.In order to solve this problem,the research process takes the thin-walled aluminium alloy rail as the object of analysis,establishes the stress calculation model of aluminium alloy material during cutting,and simulates the optimal clamping method,clamping force and machining parameters with the help of finite element simulation technology.The results show that it is suitable to adopt the clamping method of setting the pressure plate at the bottom and the support points on both sides for this kind of components,and the deformation and internal stress can be reduced to a lower level by reasonably controlling the clamping force and the machining parameters,so as to realise the precision machining.

关 键 词：铝合金复杂薄壁件 精密加工技术 低应力装夹 变形控制 

分 类 号：TG506[金属学及工艺—金属切削加工及机床]