Current status and development trend of automobile wheel production technology

The wheel is an important part of the vehicle, and its quality is directly related to the safety of human life. At present, the main materials of wheels are aluminum alloy, steel, magnesium alloy, and some composite materials and steel-aluminum composite materials. This article describes the manufacturing process of aluminum alloy wheels and steel wheels respectively. Among them, the manufacturing processes of aluminum alloy wheels include casting, forging, and the cutting-edge spinning-flow composite forming process and rolling-spinning composite forming process, and the manufacturing of steel wheels. The technology includes rim rolling technology, spoke stamping technology and cutting-edge rolling integral forming technology. The advantages and disadvantages of each technology and representative manufacturers are analyzed, and the cutting-edge wheel manufacturing technology and the development trend of the entire wheel industry are expounded. Due to the vertical load, lateral force, driving (braking) torque and various stresses generated during the driving process of the vehicle, it is a high-speed rotary motion part that requires high dimensional accuracy, small unbalance, and accurate shape of the rim supporting the tire. , light weight, and have certain rigidity, elasticity and fatigue resistance.

Therefore, the wheels are required to have sufficient load capacity and speed capacity, good cushioning and air tightness, good uniformity and mass balance, exquisite appearance and decoration, high dimensional accuracy, small quality, low price, easy disassembly and assembly, Good interchangeability etc. The selection of wheel material, wheel structure and manufacturing process are closely related to the above requirements, and are the key factors to determine the performance of the wheel.