摘要
铝合金材料制成的汽车零件对其机械性能有着严苛的设计要求,许多汽车零部件失效案例,如开裂,异响以及装配功能不良等早期失效,究其原因大多与硬度和机械性能不达标有关.本文列举的天窗导轨由6060铝型材制成,加工工艺有挤出、冲压、弯曲、铣削、时效(热处理)、阳极氧化以及铆接等.本文应用回归方程建模,找出熔炼过程中的铁元素的含量对于抗拉强度和断后伸长率的对应关系,对回归方程的显着性进行检验,通过解一组不等式来确定"铁(Fe)"元素的含量,从而指导实际熔炼过程中的控制和预测.
Abstract
Automobile parts made of aluminum alloy materials have strict design requirements for their mechanical properties,and many auto parts failure cases,such as cracking,abnormal noise and poor assembly function,are mostly related to the failure of hardness and mechanical properties.The sunroof rails listed in this article are made of 6060 aluminum profiles,and the processing processes include extrusion,stamping,bending,milling,aging(heat treatment),anodizing and riveting.In this paper,the regression equation is used to find out the correspondence between the content of iron in the melting process and the tensile strength and elongation after breaking,the significance of the regression equation is tested,and the content of"iron(Fe)"is determined by solving a set of inequalities,to guide the control and prediction in the actual melting process.
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维普
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