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一、问题的提出近十多年来,国内外对中小型发动机逐渐引起重视,整体叶片是中、小型发动机的重要部件,它的型面复杂,精度高、截面变化大,通道狭窄、叶型薄、材料难切削,而且大多数毛坯都是锻造的“大饼子”加工余量特大,成为工艺上急待解决的一项重大的技术质量关键。整体叶片的叶身扭曲厉害,从径向或轴向看叶型大部分彼此复盖。所以常用的单个叶片的加工方法,如靠换车、砂带磨、电脉冲、电解等,均因无足够的空间来安排刀具和各种运
First, the issue put forward Over the past decade, the domestic and international attention to small and medium-sized engines gradually, the overall blade is an important part of medium and small engines, its complex surface type, high precision, large cross-section changes, narrow channels, leaf Thin, difficult to cut the material, and most of the rough forging the “big pancake” processing margin extra large, become the technology to be solved a key technical quality key. The whole leaf blade body twisting powerful, most of the leaves from the radial or axial cover each other. Therefore, the commonly used single blade processing methods, such as by changing the car, belt grinding, electric pulse, electrolysis, etc., because there is not enough space to arrange the knives and all kinds of transport