Optimization of Surface Casting and Al2O3 Process for Copper Alloy Based on Improved TOPSIS
WANG Yan
ZHANG Xiaofan
Abstract：The orthogonal design and the improved TOPSIS were used to optimize the process parame-ters of the surface castings of aluminum bronze.The surface hardness,bonding strength,relative wear rate and corrosion quality of the infiltration layer were optimized by the pouring temperature,the vacuum de-gree,the preheating temperature and the coating thickness.The experimental data were obtained by or-thogonal test,Then,the evaluation scheme of TOPSIS method is used to evaluate the experimental scheme. In the process of evaluation,the single process goal is regarded as the attribute index,and the multi-process optimization target is expressed as the sum of the weights of the single process optimization target.For the traditional TOPSIS method,the distance formula is adopted,and the correlation between the attribute inde-xes is neglected.The distance calculation method of TOPSIS method is improved by Mahalanobis distance. The optimum results were as follows:casting temperature 1 200 ℃,vacuum 0.04 MPa,preheating temper-ature 180 ℃,coating thickness 3 mm.
Keywords：copper alloycasting processoptimizationTOPSISMahalanobis distance
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：7( 20-26 )