Flow Behavior of an A6082 Alloy at Elevated Temperature and Precision Finite Element Prediction of Its Hot Forging Process of an Automotive Part
摘要
During forging, temperature effect is relatively weak in the case of an A6082 alloy to magnesium and titanium alloys and both friction and temperature compensations are thus necessary to accurately characterize it. This point is quite different from other materials for which friction-compensation can be neglected. The characterized flow information of the A6082 alloy is verified by comparing the predicted and experimental stroke-compression load curves. The improved flow information is utilized to simulate a hot forging process of an A6082 alloy automotive part with high accuracy. The predictions are compared with the experiments, showing a good agreement with each other. The effect of friction on the flow pattern of the aluminum forging process is also investigated to practically find the ac-acceptable frictional condition.