Special-shaped Shell Of Electrochemical Machining And Parametric Design Based On UG

Closed integral structure has the advantages of compact structure, high strength, light weight, good reliability and greatly reducing the parts connection leak runoff loss, improving the efficiency and performance, it widely applies in the new engine. The special-shaped shell flow channel of turbine disk which is deep, narrow and twisting, tool accessibility, and the material has high hardness uses the variable cross-section spiral cavity design. Unable to realize the conventional NC machining tools, electric spark machining has low efficiency and the big electrode loss. So we combine the method of electrolytic machining and electrical discharge machining to slove this problem.Our research work concentrates on the combination of processing the first process of electrolytic machining. According to the processing object closed integral structure shell material for electrolyte formulation development, completion of the parametric design, electrolytic machining UG NX platform based on virtual assembly equipment, digital design and motion simulation of NC machining path of internal and external flow. In the design process, through the finite element analysis with the mechanical properties of the key tools, we based on the results of the numerical stiffness and deformation, determined slow processing the structure of device. Using the electrochemical machining cathode and tooling design integration, a solution to the positioning, clamping, conductive, drainage, sealing and insulation problems.Through the experiment, when the composite electrolyte materials in10%Nacl+6%NaNO3+2%NaC103, using voltage14V, temperature15℃, feed rate3.0mm/min, electrolyte pressure0.6Mpa, it can satisfy the electrolytic rough machining requirements. Through the detection of virtual assembly and motion simulation, we can prove the whole electrolytic processing device has a good assembly performance, and assembling and machining movement with no interference. In this paper, we use the application of parametric design which is easy to modify and shorten period of development tools in the designing of the electrolytic processing.