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轧制差厚板作为新兴的汽车白车身轻量化技术,与传统高强钢、激光拼焊板相比,具有轻量化效果好、成本低的特点。本文以汽车白车身左前纵梁内板为载体,进行了轧制差厚板原材料、冲压件模具的开发,并进行了白车身匹配、整车碰撞、质保路试等应用试验,实现了轧制差厚板的规模化生产,并且搭载整车实现了大批量应用。阐述了轧制差厚板在汽车白车身上的应用范围,提出了轧制差厚板冲压件模具的开发要点,并提出了轧制差厚板的整车搭载验证关注点,为轧制差厚板技术在国内自主车型上的应用积累了经验。
As a new lightweight car body technology, rolling differential thick plate has the characteristics of light weight and low cost compared with the traditional high-strength steel and laser tailor welded plate. In this paper, the inner panel of the vehicle’s left front side of the car body is used as a carrier to carry out the development of the raw material for the rolling differential thick plate and the stamping parts. The application experiments of white body matching, vehicle collision and quality assurance road test are carried out, Poor production of large-scale plate, and equipped with a vehicle to achieve high-volume applications. The application range of the rolling difference plate on the white body of a car is expounded. The key points of the development of the die for the rolling differential thick plate are put forward. Attention is put on the validation of the whole plate of the rolling difference plate, Thick plate technology in the domestic application of independent models accumulated experience.