Simulation Study on Wax Injection for Investment Casting

Bo He; Dong Hong Wang; Fei Li; Bao De Sun

doi:10.4028/www.scientific.net/AMR.834-836.1575

Paper Titles

Simulation on Stress Relaxation of DD3 Nickel-Based Single Crystal Superalloy Based on Micro-Cell Model
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Study on Simulating the Temperature Field of P110 Oil Case for Quenching by Finite Element Method
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Computer Simulation of Aluminum Conductors Drawn in High Speed
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System Development of Processing Functional Gradient Material Part by Laser Rapid Prototyping
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Simulation Study on Wax Injection for Investment Casting
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The Lost Foam Casting Simulation of the Gray Cast Iron Linner
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Numerical Simulation for Fluid Flow of Flow Channel Structure in the Injection-Rolling Nozzle during Polymer Continue Injection Direct Rolling
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Development of Visualize Simulation System of Jet Milling Process
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How to Increase the Accuracy of Analysis and Reduce the Computational Time in ANSYS in the Case of Deformation Study of Orthopedic Bone Plates
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Simulation Study on Wax Injection for Investment Casting

Abstract:

As investment castings grow in size and complexity, control of wax pattern dimensions becomes increasingly important and difficult. Conventionally, mold design and dimensions are re-worked by trial-and-error procedures until casting dimensions are produced within acceptable dimensional tolerances, increasing the cost of the castings.Nowadays, numerical simulation is an efficient tool for mold design. However, one of the critical difficulties in using computer models for the simulation of wax injection process is the lack of material properties of the wax. Material property measurements were conducted in this study that can be used as input in Moldflow. Then, 3D numerical simulation could be applied in analysis with mold design of thin-walled wax pattern, with high dependability. Simulation results of filling time and the location of the air traps were analyzed. Consequently, best gate location and reasonable gate system were determined. The paper highlighted the effectiveness of simulation in filling optimization and deformation of wax pattern.