Numerical Simulation of Sintering Temperature Field in Titanium Alloy Investment Casting Shell
The thermal conductivity,density and specific heat capacity of shell for titanium alloy investment casting were measured,providing parameter support for numerical simulation of shell baking temperature field.A reverse trans-formation of traditional solidification cooling theory was carried out to develop a solution for investment casting shell baking,and a heating model for high-temperature baking process of the shell was established to simulate the heating and cooling processes of baking process.Based on geometric modeling of casting,the automatic generation of shell geo-metric modeling was realized.Taking the complex thin-walled skeleton shell for titanium alloy casting as object,the temperature variation law of baking process was simulated and analyzed.The results indicate that the established shell baking model gives a better description of the variation law of baking temperature.
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