Strain Analysis on Weld Zone of Tailor Welded Blanks in the Case of Welded Seam Cracking
A simulation model for the filling of a tubular cavity during water assisted injection molding is proposed. The polymer melt and water are assumed to be incompressible and to follow a Hele-Shaw fluid behavior. The finite element/finite difference/control volume methods are adopted for numerical simulation of the melt front, pressure at injection location variation, water thickness fraction and bulk temperature about a curved pipe, the simulation results have good agreement with the results presented in the former experiment. In comparison with the simulation result of gas-assisted injection molding, water assisted injection molding can give parts with thinner and more uniform walls and more rapid cooling.
Zhengyi Jiang, Xianghua Liu and Jinglong Bu
Q. S. Hu et al., "Strain Analysis on Weld Zone of Tailor Welded Blanks in the Case of Welded Seam Cracking", Advanced Materials Research, Vols. 154-155, pp. 355-358, 2011