The chassis subframe of New Car is an important structural safety part

Hydraulic forming process: liquid is used as a force transmission medium to form the workpiece through a mold. The use of steel pipe hydraulic forming can not only reduce the production process and reduce the cost of parts, but also make the parts more accurate, material utilization and strength higher. However, due to the low elongation of aluminum alloy materials, it is difficult to hydraulically form aluminum tubes.

Material selection: Select the appropriate material according to different processes and performance requirements. For example, die-cast aluminum alloy subframes often use a-si alloys, and the aluminum tube material grades used for aluminum tube hydraulic forming Fuel Car subframes of some models are al-mg3-mn, etc. For the combination of aluminum plates and other processes, commonly used aluminum plate materials include 6061, 5754 (al-mg3-mn), etc., and the thickness is usually between 2.5mm and 5mm.

Meet performance requirements: The chassis subframe of New Car is an important structural safety part, connecting and fixing assembly parts such as suspension systems, steering systems, and engines, and has high requirements for its strength, stiffness, modality, and handling stability. Therefore, various processes and material selections are required during the manufacturing process to ensure that the Fuel Car subframe can meet these performance indicators.