六西格玛方法对改善叶片电火花微孔加工质量的应用研究

摘要

针对某型发动机高压涡轮导向叶片长期以来存在的电火花微孔加工质量问题,探索性地运用六西格玛过程方法DMAIC--定义(Define)、测量(Measure)、分析(Analyze)、改进(Improve)、控制(Control),全面深入地对电火花微孔加工质量问题进行了研究分析,确定电极和导套为影响电火花微孔加工质量的关键因素,通过不断改善使该问题得以圆满解决.%The article comprehensively and thoroughly discusses and analyzes the EDM quality of micropores on blades by using 6σ method—DMAIC(define, measure, analyze and improve)in order to solve this quality issue on HPT vanes of a model of engine. It has defined that the electrodes and guide bushes are the key factors which will impact the EDM quality, which has been improved continuously by this method.