Strain-stress simulation and comparison of different welding sequences during manufacturing of packing vacuum cover

[摘要] Double ellipsoid heat source model was used to simulate the welding strain-stress evolution during the welding of a vacuum cover for packing machine. Results showed that each welding process has influence about the deformation and residual stress distribution over product. Stress concentration area was found in an area of the cover and the improved structure, manufacturing technologies were proposed to minimize residual stress after simulation and comparison of different manufacturing process, it is an available method to improve the product quality and reduce residual stresses.

[发布机构] School of Mechanical and Electrical Engineering, Wenzhou University, 276 Xueyuan Middle Rd, Lucheng, Wenzhou; 325035, China^1;Hualian Machinery Group CO.LTD, Area A China Import and Export Fair Complex, Wenzhou; 325000, China^2;Department of Physics N.a. Prof. V.M. Finkel, Siberian State Industrial University, 42 Kirova Street, Novokuznetsk; 654007, Russia^3

[效力级别] 金属学 [学科分类] 材料科学（综合）

[关键词] Heat source modeling;Improved structures;Manufacturing process;Manufacturing technologies;Stress evolution;Stress simulations;Welding process;Welding sequences