Man Ruiping, Zhu Xiao, Li Xuechen, Ni Hui, Liu Shuchong
2026, 55(1): 42-45.
This paper presents the application of aluminum alloy profiles in automotive threshold beams. The structural performance of threshold beams such as stamping and integral aluminum alloy is compared, and the alloy characteristics of 6008 (with excellent extrusion and energy absorption) and 6082 (with high strength and corrosion resistance) are analyzed. By combining three types of vehicle cases, this paper elaborates on the realization of lightweight and safety synergy through multi-chamber design, laser welding, etc. Although it faces challenges such as high initial costs and complex aluminum-steel connections, with the advancement of lightweighting and electrification in the industry and the research and development of new materials, its application scale will expand, contributing to the high-performance and sustainable development of automobiles.