Multi-physics Coupling Simulation of Precise Electrochemical Machining(PECM) with Pulsed Current and Vibrating Cathode

International Conference on Manufacturing Technology, Materials and Chemical Engineering

机械制造;材料科学;化学工业

Chen, Yuanlong^1 ; Liu, Zhi^1 ; Zhang, Juchen^1 ; Wang, Yudi^1

School of Mechanical Engineering, Hefei University of Technology, Hefei

230009, China^1

关键词: Electrochemical machining;    Geometric deformations;    Machining process simulation;    Multi-physics couplings;    Multi-physics modeling;    Steady-state flow field;    Transient flow fields;    Transient simulation;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/392/3/032020/pdf
DOI  :  10.1088/1757-899X/392/3/032020

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

A new multi-physics model is presented for numerical simulation of the precise electrochemical machining process with pulsed current and vibrating cathode. The method includes the change of electric field, flow field, temperature field and geometric deformation field. Meanwhile, the effects of cathodic vibration on electrolyte velocity is obtained by transient simulation of flow field and the velocity distribution obtained from the multi-step steady state flow field is compared with that of transient flow field. To solve the problem that machining process simulation needs a lot of computing time, a multi-step steady state flow field solution and a loop iterative solution algorithm based on COMSOL are presented, and the error analysis was carried out. The results show that the algorithm can ensure the error within a reasonable range and greatly reduce the calculation time.