How the wheel is manufactured？

There are three methods for manufacturing aluminum alloy wheels: gravity casting, forging, and low-pressure precision casting.

1. Gravity casting method The aluminum alloy solution is poured into the mold by gravity, and after forming, it is processed and polished by a lathe to complete the production. The manufacturing process is relatively simple, does not require precise casting technology, has low cost and high production efficiency, but is prone to bubbles (sand holes), uneven density, and insufficient surface smoothness. A considerable number of Geely models are equipped with wheels produced by this method, mainly early models, and most new models have been replaced with new wheels.

2. Forging method The entire aluminum ingot is directly extruded on the mold by a thousand-ton press. The advantages are uniform density, smooth and delicate surface, thin wheel wall and light weight, the highest material strength, more than 30% higher than the casting method, but because it requires more sophisticated production equipment and the yield rate is only 50% to 60%, the manufacturing cost is relatively high.

3. Low-pressure precision casting method Precision casting under a low pressure of 0.1Mpa has good formability, clear contours, uniform density, and smooth surface. It can achieve high strength and light weight while controlling costs. The yield rate is over 90%, making it the mainstream manufacturing method for high-quality aluminum alloy wheels.