薄壁铝合金高速铣削工艺寻优及模拟仿真

Process Optimization and Simulation of High Speed Processing Technology for Thin Thickness Parts of Aluminium Alloy

本文详细讨论了薄壁零件的加工技术。首先,以CAXA软件为技术平台,自动生成零件的刀具路径,并进行了模拟仿真加工;针对薄壁零件刚性差、强度弱、加工工艺性差、易发生加工变形和切削振动等情况,决定采用高速加工技术。通过对机床、刀具、工件以及切削参数等进行全面分析,采用了刚度大的高速切削机床,并选择了合适的切削刀具。通过改变工件装夹方式,优化编程策略和合理选用切削用量,实现了薄壁零件的高速干式切削。

The cutting technique of thin-wall workpart was discussed. Taking 3-D software CAXA as platform, the tool route in cutting thin-wall workpart was generated through CAD modeling and CAM simulation. According to such characteristics of the thin-wall workpart as low rigidity and strength, poor machinability, liable to produce distortion and cutting vibration, high speed cutting technique was adopted. Based on analyzing machine tool, cutting tool, workpiece and cutting parameters, high speed machine tool with higher rigidity was utilized, and proper cutting tool was selected. The high speed and dry cutting for thin-wall workpart was realized by changing the mounting way of workpiece, optimizing programming strategy, choosing reasonable cutting variables.