Benefits given by the strength of aluminum alloy wheels

The traditional manufacturing methods of aluminum alloy wheels include casting molding and spinning forming. Among them, casting molding can be divided into gravity casting and low pressure casting. According to different manufacturing processes, the wheel hub can be divided into single (one), two pieces and three pieces according to the structure. In a single piece, the entire aluminum ingot is placed on the forging die for one extrusion (one time means the whole, not multiple times), the basic shape of the spoke and rim are formed together, and the hub becomes a unit. The two-piece type means that the rim part and the spokes are forged separately, and the three-piece type means that the spokes and the rim are forged separately, and the rim is forged in two parts. Among them, the three-piece rim should be welded and sealed as one to prevent air leakage. The spokes and the rim Secure with screws. Traditional multi-piece aluminum alloy wheels, spokes, and flanges are connected by laser welding or bolts. Laser welding has the advantages of fast welding speed and high welding precision, but has disadvantages such as expensive welding equipment, high energy consumption, and prone to welding defects.

Friction stir welding technology is used to weld the wheel hub, the spokes are placed in the rim of the wheel, and the joints are squeezed by the high-frequency rotary welding head, so that the parts are melted and fused under high temperature, and at the same time, the joints are connected due to thermal expansion and contraction. Tags: alloy wheels.