Research on Three Dimensional Modeling and Track Parameters of WEDM of Closed Interface on the Ring with High Precision

An optimum method is presented to obtain the track parameters of wire electrical-discharge machining (WEDM) of closed interface on the ring with high precision. Firstly, the three-dimensional model in WEDM motion space of the ring was obtained based on AutoCAD software and WEDM experiment. Seven track parameters were defined, and then the effects of the position size L₁ of P₁ space along the direction Z upon six other parameters were discussed in the paper. Finally, the constrained condition about the track parameters of wire electrical-discharge machining was analyzed and the relations between the track parameters and fit characteristics of the joint were studied. The results show that the six other track parameters change evidently, fit stability of the interface is reduced, and inosculation degree is increased when L₁ increases from 10.27 mm to 28.27 mm for Phi105 ring. It is concluded that the optimum method and track parameters can be applied in the design and manufacture of ring under the condition of L₁ limited from 16.16 mm to 19.76 mm.