飞机结构梁多轴铣削加工程序与工艺优化研究

Research on multi-axis milling processing procedure andprocess optimization of aircraft structural beams

为解决飞机结构梁铣削加工过程中容易产生变形的问题。针对飞机结构梁类的薄壁腔体难加工零件进行了加工工艺分析和流程设计,此类零件的毛坯残余应力是影响零件加工变形的重要因素,有效的应力释放可以提高零件的加工质量。对此利用UGNX软件进行了数控编程,并利用VERICUT软件进行仿真,以最大切削厚度为目标进行了切削参数优化,优化后的程序能够有效的提高加工效率,并且探讨了以保证加工质量目标的刀轨编程策略和方法,有效的解决了飞机结构梁铣削加工过程中产生变形的问题。

In order to solve the problem of deformation in the process of milling aircraft structural beam,the processing technology analysis and process design for the thin-walled cavity difficult-to-machine parts of aircraft structural beam were carried out.The blank residual stress of such parts is an important factor affecting the machining deformation of parts,and effective stress release can improve the machining quality of parts.In this regard,the numerical control programming was carried out by UGNX software,and the simulation was carried out by VERICUT software,and the cutting parameters were optimized with the goal of maximum cutting thickness,and the optimized program could effectively improve the machining efficiency,and the toolpath programming strategy and method to ensure the machining quality goal were discussed,which effectively solved the problem of deformation in the milling process of aircraft structural beams.