The
aluminum alloy wheels forged
in our country use 6061 grade aluminum alloy (LD30). Compared with traditional steel wheels, they have the advantages of light weight, beautiful appearance, and good heat dissipation performance. However, due to the limitations of 6061 material, under the existing commonly used forging methods, its good mechanical properties can only reach tensile strength of 350Mpa, yield strength of 320MPa, elongation of about 12%, a piece of 6061 aluminum alloy truck wheel finished product is about 25kg, so its tensile strength, yield strength, elongation and weight can no longer meet the requirements of existing trucks for wheels.
Forging: The front surface of the cast rod is pre-forged with a pressure forging machine, forged into a bowl shape, and then the back of the cast rod is forged once with a pressure forging machine, forged into a cylindrical shape, and the cast rod is rolled into a forged billet with a spinning machine. The forged billet is in the shape of the edge of the rim.
Heat treatment: solid solution treatment of forged billet, solution temperature 465-475℃, solution time 2-3 hours, quenching within 15 seconds after solution treatment, quenching temperature 40-60°C, time 85-95 seconds, aging treatment after quenching, aging temperature 115-125°C, aging time 22-24 hours.
Some people increase the wheel rim in order to improve the performance of the car. In the case of the same tire diameter, the
large wheel rim
should be matched with the wide tire. The lateral swing of the car is small and the stability is improved, but the flatter the tire, the thinner its thickness, the worse the shock absorption performance, and the greater the sacrifice of comfort.
The complex structure and dense wheels are really beautiful and look very high-grade, but it is easy to refuse to wash or overcharge when washing the car, because it is too troublesome to wash the car, and the simple wheels are dynamic, clean and tidy.
Compared with the previous cast iron wheels, the popular aluminum alloy wheels have greatly improved deformation resistance, greatly reduced weight, small power loss in the car, fast running speed, and good fuel-saving and heat dissipation. They are loved by the majority of car owners.
As a reminder, many car dealers choose to use aluminum alloy wheels to cater to the tastes of car owners. They can be changed according to their own style, and the styling styles of the wheels are also diverse for consumers to choose from.
