长梁类整体结构件加工过程变形稳定性控制.

Machining distortion has always been a serious problem perplexing the aviation manufacturing industry. Taking the long beam parts as the research object, this paper analysed the evolution of bending energy caused by the initial residual stress in the material, defined the indexes of machining distortion stability and bending potential energy, and put forward a method to control the distortion stability by optimizing the release of bending potential energy. The results of theoretical analysis. simulation and machining test show that the stability of machining distortion in finishing stage can be significantly improved by optimizing the material removal sequence. [ABSTRACT FROM AUTHOR]