Abstract:The rational choice of cutting fluid is one of the important ways to improve the degree of green cutting. According to the philosophy of green manufacturing, to meet the processing quality, a multi-target decision-making system for selecting cutting fluid is established, in which five targets, time, quality, cost, resource consumption and environment impact, are included. Shaving processing experiments using oil-based cutting fluids and different types of water-based cutting fluids are carried out, and the results of the quality of work piece, tool life, cost, and environmental protection are compared. The processing results are evaluated by fuzzy comprehensive evaluation method. Based on the evaluation results, a synthetic selection model for shaving cutting fluid and related constraints are put forward. The feasibility of the model is verified by a shaving processing case. Tests show that compared with the traditional oil-based cutting fluids, water-based cutting fluid can meet the quality requirements, effectively reduce production costs and reduce environmental pollution.