关键词: DEMATEL-VIKOR, 电火花加工, 工艺参数优化, 绿色制造, 模糊集

Abstract: To solve the problem of process parameter selection and optimization for green manufacturing, a multi-input, process and multi-output grey model for green manufacturing is developed aiming at converting a procedure of process parameter selection and optimization into a multiple-criteria decision making procedure. The fuzzy linguistic expert knowledge in a green evaluation of product manufacturing process is quantified using fuzzy set theory. Decision making trial and evaluation laboratory (DEMATEL) method is extended in fuzzy environment to deal with the correlation of process evaluation factors and to allocate its weighing factor in accordance with its influence. Furthermore, process parameter selection for green manufacturing is carried out based on a comprehensive DEMATEL-VIKOR algorithm. As a result, a best or compromise set for green process parameter values is obtained with a balanced consideration between maximum group utility and minimum individual regret, and the process controllable factor for green manufacturing is ranked aiming at a better adjustment for process parameter optimization. Finally, the proposed method is applied to select green process parameter in an electrical discharge machining to verify its feasibility and effectiveness.

Key words: DEMATEL-VIKOR, Fuzzy set Electrical discharge machining, Green manufacturing, Process parameter optimization