汽轮机静叶片装配内背弧型面线切割工艺研究

Research on the Steam Turbine Static Blade Assembly Back Curved Surface Line Cutting Process

汽轮机静叶片装配内背弧型面加工是汽轮机静叶片关键工序之一。针对汽轮机静叶片结构特征,应用线切割加工技术和工件定位原理,研究汽轮机静叶片加工工艺过程、装配内背弧型面线切割工艺、线切割夹具结构及夹紧工作原理、线切割工艺参数的调整方法,从而在满足加工零件的精度及表面粗糙要求的同时,在生产应用中形成了更加完善的工艺方法。

The back curved surface machining of the steam turbine static blade assembly is one of the key processes of the steam turbine static blade. For the steam turbine static blade structural characteristics, applying WEDM and workpiece positioning princi- ple, the steam turbine static b]ade machining process, WEDM process of the back curved surface in the steam turbine static blade as- sembly, WEDM fixture structure, workpiece clamping principle, adjustment method of WEDM process parameters were researched. So the machined part accuracy and surface roughness requirements are met and the perfect machining processing is formed in production.