GAO Mingjiang, FAN Ding, HOU Yingjie, et al. Influence of trailing cooling on temperature field and microstructure properties of wire arc additive manufacturing[J]. 2021,51(8):105-110. DOI： 10.7512/j.issn.1001-2303.2021.08.13.
To solve the problems of poor forming quality,low dimensional accuracy and coarse grains of the formed parts caused by the serious heat accumulation in the process of wire arc additive manufacturing,trailing cooling wire arc additive manufacturing method was proposed to improve the heat accumulation. Numerical simulation and experiments were used to study the effect of trailing cooling on the temperature field of wire arc additive manufacturing process and analyze the effect of cold source on the forming quality,microstructure and mechanical properties of the formed parts. The results show that the application of cold source can effectively improve the heat accumulation in the manufacturing process and the forming quality and dimensional accuracy of the formed parts,meanwhile,optimize the microstructure and mechanical properties of the formed parts.
wire arc additive manufacturingtrailing coolingtemperature fieldforming qualitymicrostructure and mechanical property