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Analysis and Study on the Paramerers of Die-casting Based on Foundary CAD/CAE

Author: GuiZuo
Tutor: WangZhiPing
School: Lanzhou University of Technology
Course: Materials Processing Engineering
Keywords: CAE technology Die Casting Process PQ ~ 2 Fig. Numerical Simulation Filling / solidification process
CLC: TG249.2
Type: Master's thesis
Year: 2011
Downloads: 92
Quote: 0
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Abstract


In the world of energy saving environment, on light alloys ( magnesium alloy ) using growing demand. This light alloy die-casting molding process main requirements are also increasing . In today's rapidly changing computer technology , CAD / CAE / CAM technology has become the main development direction casting process . Based on commercial casting CAE software to the magnesium alloy tensile, impact test bars consisting of casting for the study, three-dimensional modeling software Pro / E for the modeling platform , in the traditional casting process based on the theory , the thick-walled casting process development and design . Proposed the use of PQ ~ 2 diagram casting and die casting machine performance to match , choose the simulation parameters of CAE methods . Design of experiments, using the cooling curve control points approach the process of collecting solidification temperature changes, which reflect the different cooling water solidification effect under the program , to optimize the selection of the program , to facilitate follow-up observation of injection speed , the single variable for die casting mold filling , solidification process. Figure in PQ ~ 2 time - speed window and matching cross-sectional area inside the gate within the design of injection speed three different experiments. Combined with the same initial and boundary conditions , for three scenarios were simulated to track particles , mold filling and solidification as a percentage of a percentage to the phenotypic effects of injection speed . Meanwhile in a variety of ways to show multiple perspectives casting temperature field, flow field and casting defects. Studies have shown that the filling thick casting speed is not too large , to avoid increasing the liquid metal in the cavity of the degree of turbulence , while reducing the liquid metal inside runner embroiled in air content , that is, reducing the casting shrinkage may occur within , volumetric shrinkage and ensure the quality of castings . Casting CAE technology has revolutionized the casting process programs are under development in the process of uncertainty and non-repeatability , ensuring the success rate of mold casting quality , shorten product development cycles and reduce costs, improve production and competitiveness has significance.

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CLC: > Industrial Technology > Metallurgy and Metal Craft > Casting > Special Casting > Pressure die casting
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