Strain Analysis on Weld Zone of Tailor Welded Blanks in the Case of Welded Seam Cracking

Abstract:

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.

• Periodical: Advanced Materials Research (Volumes 154-155)
• Pages: 355-358
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.154-155.355
• Online since: October 2010
• Authors: Qiao Sheng Hu, Feng Ni, Jian Ping Lin
• Keywords: Crack, Formability, Strain State, Tailor Welded Blank (TWB)

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