Mensuration and simulation of mold filling process in emi-solid die-cast of aluminum alloy

来源期刊:中国有色金属学报(英文版)2006年第z3期

论文作者:杨弋涛 王建甫 张恒华 邵光杰

文章页码:1402 - 1406

Key words:mold filling; simulation; semi-solid process; Al alloy

Abstract: To understand the flow trace of semi-solid slurry in mold cavity, some thermocouples were inserted in mold cavity, and the reaction timing of thermocouples showed the arrival of fluid. The filling time and rate were estimated by comparison between the experiment and calculation. The introduction of computer simulation technique based on ADSTEFAN was to predict injection- forming process and to prevent defects during trial manufacture of various parts. By comparing the formed appearance of parts in experiment and in simulation, and observing the relationship between internal defects inspected by X-ray or microscope and the flow field obtained in simulation, it was indicated that both have quite good agreement in simulation and experiment. Right predictions for cast defects resulted from mold filling can be carried out and proper direction was also proposed. The realization of numerical visualization for filling process during semi-solid die-cast process will play an important role in optimizing technology plan.

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