Integral impeller s formation upon Pro/E platform and cathode design;

According to the basic principle of electrochemical machining,discussed in this paper are two kinds of cathode design methods,which were respectively based on the mathematical model of a simplified electric field and the mathematical model of actual electric field distribution in the machining gap.

Finally,an electrode design and calculation process is simulated on comput.

To produce shrouded turbine blisk by electro-discharge machining(EDM),a special CAD/CAM system called the BliskCad/Cam is developed to solve the problems,such as electrode designing and manufacturing,searching path for multi-axis NC-EDM,and precision measurement and detection,etc.

This paper describes the optimum project of heating equiment and electrode design con- cerned, based upon the small-sized LTR heat treatment furnace with fluidized graphite bed which was early developed by the writers, and the experience of developing a large powered fur- nace thereafter.

By the study on whole strength and parameter optimization for the bearing,the theory analysis and the test show that the ultimate design method can largely increase carrying ability and service life of the bearing without changing bearing material and manufacture technology,and the method can decrease bearing weight and reduce the material consumption.