Dry information | Inventory of common forged modified wheel structures

Monoblock

The monoblock means that the entire wheel is a whole. Forging can be divided into two processes: forming forging and milling forging.

Form forging means that the wheel hub shape has been basically formed after forging; milling forging means purchasing a ready-made forged wheel hub blank, and then milling the wheel hub shape through a CNC machining center. The two have different requirements for manufacturers' own capabilities, but the quality is actually about the same.

Compared with the multi-piece type, the one-piece type is lighter in weight, can be the lightest, has better dynamic balance, has good reliability, and has no hidden dangers of air leakage, but the shape is relatively simple.

Multi-piece wheel 

Multi-piece forged wheels can be divided into two-piece and three-piece types. The most obvious difference from one-piece forged wheels is the structural difference. The two-piece forged wheel is composed of two parts: the rim and the spoke. The rim part of the three-piece forged wheel is composed of two parts: the front piece and the rear piece. Therefore, the three-piece wheel consists of three parts: the front piece, the rear piece, and the spoke. Multi-piece forged wheel spokes are connected to the rim.

Currently, there are two main methods: a special bolt/nut connection or welding. Since the three-piece wheel is composed of a front piece and a rear piece, it must be sealed after assembly to ensure air tightness. The multi-piece rim parts can be shared, so only the center plate can be replaced when changing the shape. Different sizes of spokes and rims can be matched, so there are more styling options. However, the weight is greater, the dynamic balance is not as good as the one-piece type, and the assembly requirements are also higher.