For a long time, steel wheels have dominated automobile wheels, but since the 1980s, the market share of steel wheels has gradually decreased, and they have been replaced by aluminum alloys. There are many reasons for the rapid decline in the share of steel wheels, and the attractive appearance is the most important factor. Steel wheels have great advantages over aluminum alloy wheels in terms of low cost and safety. Therefore, most of the current truck wheels are made of steel.
However, the disadvantages of steel wheels are also very obvious. The processing and forming performance and manufacturing process of steel determine that it is difficult for steel wheels to achieve the structure and shape diversity of aluminum alloy wheels. At the same time, steel wheels have a large mass, and the energy consumption of manufacturing and using steel wheels is much larger than that of aluminum wheels. In recent years, in the face of the penetration and challenges of substitutes, the international steel wheel industry has carried out a series of innovations in technology, including: (1) new materials such as micro-alloyed steel HSLA, dual-phase steel (DP) and bainitic steel Strength and advanced high-strength steel grades have been successfully developed and gradually applied to the manufacture of wheels, creating conditions for steel wheels to reduce weight and bolder style design.