汽车轻量化铝合金门板模具的压铸工艺参数优化

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中图分类号：TG249 文献标志码：A

Abstract：To improve the die-casting process performance of lightweight aluminum alloy door panels for automobiles， an optimization method for die-casting process parameters of aluminum alloy door panel molds is proposed. Selecting ADC12 aluminum alloy material to prepare door panels，the process includes steps such as mold preheating，mold closing，and mold opening. A pouring system is designed to determine key parameters such as the filling speed of the sprue，and a DM15Oo horizontal cold chamber die-casting machine is selected. By optimizing the parameters of minimum porosity and maximum density，the optimal parameter combination is determined by analyzing the effects of injection speed，mold temperature， pouring temperature，and holding pressure on the defects and porosity of door panel castings. The experimental results show that the optimal parameters are injection velocity of 2.2m/s mold temperature of 260∘C ， pouring temperature of 750∘C ，and holding pressure of 60MPa

Under these parameters，the porosity， porosity，and shrinkage area of lightweight aluminum alloy door panel castings for automobiles are minimized，with the lowest porosity and highest density. This indicates that the automotive lightweight aluminum alloy door panel castings prepared using optimized die-casting process parameters have high quality and reliability，and are suitable for practical production.

Key words： automotive lightweighting; aluminium alloy； door panel mold; die casting process；parameter optimization；injection velocity

0 引言

汽车轻量化的制作可以有效提升燃油经济性和性能。（剩余9047字）