翻译外文文献Keywords Al-alloy, finite element analysis, residual stresses,resistance spot welding, x-ray diffractionAluminum alloys are widely used in various manufacturing industries because of their light weight and relatively highstrength pr

翻译外文文献Keywords Al-alloy, finite element analysis, residual stresses,resistance spot welding, x-ray diffractionAluminum alloys are widely used in various manufacturing industries because of their light weight and relatively highstrength pr
翻译外文文献
Keywords Al-alloy, finite element analysis, residual stresses,resistance spot welding, x-ray diffraction
Aluminum alloys are widely used in various manufacturing industries because of their light weight and relatively highstrength properties. They are considered as substitute materials for steel in the automotive industry to reduce vehicle weight, to improve fuel economy, and to reduce exhaust emissions.Comparing with other steels, spot welding is more challenging in aluminum alloys, which is because of their narrow
plastic range, low bulk resistance, and higher thermal conductivity.However, resistance spot welding (RSW) is the chief method used for joining aluminum sheets and aluminum alloys for the bodies and chassis of various components in the automotive industry (Ref 1, 2).
In RSW process, a high electric current is passed through two sheets via electrodes in a short time, which results in the generation of a melting zone between the sheets. When the electric current is turned off, molten metal starts to cool down to room temperature nonuniformly.

翻译外文文献Keywords Al-alloy, finite element analysis, residual stresses,resistance spot welding, x-ray diffractionAluminum alloys are widely used in various manufacturing industries because of their light weight and relatively highstrength pr
关键词：铝合金,有限元分析,残余应力,电阻点焊,x-射线衍射
铝合金广泛使用于不同的制造行业,因为它具有重量轻和相对高强度的性质.它们被认为是汽车工业中钢的替代材料,以降低汽车的重量,改善燃油经济性,和减少废气排放.与其它钢相比,点焊在铝合金方面更具挑战性,这是因为它们的塑性范围较窄,体积电阻低,以及较高的热导率.然而,电阻点焊（RSW）是汽车行业中用于车身和各种组件的底盘的铝板和铝合金接合的主要方法（参考文献1,2）.

关键词铝合金，有限元分析，残余应力，电阻点焊，X射线衍射
铝合金是广泛应用于各种制造行业，由于其重量轻，高强度性能的比较。他们被视为替代材料在汽车用钢行业降低汽车重量，提高燃油经济性，并减少废气排放。与其他钢相比，点焊是更具挑战性的铝合金，这是由于其狭窄的塑性范围，低电阻，和热传导率高。然而，电阻点焊（RSW）是用来连接铝板、铝合金在汽车行业的机构和各部分的底盘的主要方法（参考文献1，2）...

全部展开

关键词铝合金，有限元分析，残余应力，电阻点焊，X射线衍射
铝合金是广泛应用于各种制造行业，由于其重量轻，高强度性能的比较。他们被视为替代材料在汽车用钢行业降低汽车重量，提高燃油经济性，并减少废气排放。与其他钢相比，点焊是更具挑战性的铝合金，这是由于其狭窄的塑性范围，低电阻，和热传导率高。然而，电阻点焊（RSW）是用来连接铝板、铝合金在汽车行业的机构和各部分的底盘的主要方法（参考文献1，2）。
在点焊过程中，高电流通过两片通过在短时间内电极，其结果是在熔融区之间的代表。当电流切断，熔融金属开始冷却到室温不均匀。

收起