Crack Formation during Foam Pattern Firing in the Investment Casting Process
نویسندگان
چکیده
were obtained from experimental tests. A 3D nonlinear finite element model was developed to predict possible crack formation in the shells during pattern removal. The effects of the thermo-mechanical properties of the foam and the shell, as well as the firing process parameters were modeled, and extreme cases were experimentally validated. Recommendations for firing process parameters and pattern design to decrease stress and eliminate crack formation in the shell were formulated.
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