Abstract
In this study, investment casting is used as the manufacturing methodfor an exhaust manifold of modified-HF stainless steel, and the filling and solidification process is simulated by Procast software. The simulated results of the preliminary design show that the porosity defects exist in the exhaust manifold and the casting yield is only 38.8%, which is in good agreement with the actual casting product. Based on the technical requirements, an optimal design is proposed by enlarging the size of the riser and decreasing the size of the downsprue. The simulated results of the optimized design show that there is almost no porosity defect in the product and the casting yield is increased from 38.8% to 49.1%, which is confirmed by real production testing. Therefore an exhaust manifold with better casting quality and higher yield can be successfully produced by applying the optimized design.
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Fang, Y., Hu, J., Zhou, J. et al. Numerical Simulation of Filling and Solidification in Exhaust Manifold Investment Casting. Inter Metalcast 8, 39–45 (2014). https://doi.org/10.1007/BF03355593
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DOI: https://doi.org/10.1007/BF03355593