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Study of Numerical Simulation and Design of Die-casting Mould for Magnesium Vehicle Parts

Author: MaQiu
Tutor: YuYanDong
School: Harbin University of Science and Technology
Course: Materials Processing Engineering
Keywords: Magnesium alloy Die-casting Numerical Simulation Mold design optimization Standard mold base library
CLC: U466
Type: Master's thesis
Year: 2005
Downloads: 523
Quote: 7
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Abstract


Proceed from the the domestic magnesium alloy die-casting mold CAD / CAE technology with the international advanced level of technology gap and the urgent need to solve the problem , a magnesium alloy die-casting mold integration of CAD / CAE thinking , combined with the actual casting mold design example , a typical magnesium alloy die castings shift housing die-casting mold CAD / CAE integration . This article focuses on the research and the establishment of standard mold base library magnesium alloy automobile parts die casting mold CAE implementation . First , for magnesium alloy die-casting process characteristics and the opacity of the filling process , the use of Pro / E solid modeling casting , and generates a surface mesh file . Secondly , the use of simulation software the ProCAST of physical field of magnesium alloy car the shift shell filling process modeling and simulation . Mold filling simulation , analysis results show that the use of die-casting technology to produce magnesium alloy automobile gearshift housing casting defects porosity and shrinkage . The formation of pores in the filling process , the gas can not be smoothly discharged cavity involvement of high-pressure liquid alloy , extruded together into holes in the casting during the cooling process . The presence of these defects makes the mechanical properties of the material is decreased, while the airtightness is deteriorated . Finally , the results of the analysis based on the filling simulation of the gating system and the overflow system proposed amendments to the program , and then carry out the modeling and simulation , which has been optimized process plan , the results show that the optimized process solutions ideal filling parts overall quality greatly improved. Reproduction capability of computer simulation technology for real casting situation , casting mold design has a good guide through the filling process simulation of automotive parts . In addition, in Pro / E and its function on the basis of analysis of characteristics common die-casting mold standard mold base and standard base library hierarchy to construct a three - dimensional die-casting mold standard base library . Design examples show that the standard mold base library to improve the efficiency of the casting mold design good usability .

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CLC: > Transportation > Road transport > Automotive Engineering > Automobile manufacturing process
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