並列摘要
In response to international environmental trends, aluminum be used replace steel automotive parts reach carbon reduction purposes, and combined extrusion and bending achieve lightweight and high strength, but aluminum is not as steel has excellent elongation, at room temperature, large angle bending often resulting in surface micro cracks or orange peel. This project will develop bending equipment on extrusion process, After extrusion, the 350 ~ 450 ℃ remanent warmth can improve more than four times elongation, to avoid structural defects when bending.