What is stronger cast or forged-YOG Rim?
I believe that many netizens will ask if the wheel frame of a motorcycle is
forged or cast. Since we need to understand the mystery, let us first understand
the production methods of the two mainstream wheel frames.
1.What is casting?
After the metal is smelted into a liquid, it is poured into the model. After it is
cooled and solidified, the casting is taken out from the model, and the removed
casting is called a blank and needs to be trimmed. The material to be cast is
mostly metal (such as iron, copper, aluminum, etc.), and the material of the mold
is mainly divided into three types: sand, metal and ceramic; it is often used to
manufacture mechanical parts with complex shapes or subjected to static load
and compressive stress.
Moreover, the most important point is that the price of the cast wheel frame is
relatively close to the people.
▲ cast wheel frame
In terms of advantages, the casting wheel frame mold has low cost, low
processing cost, and good efficiency in manufacturing a casting having a
complicated shape. The disadvantage is that bubbles are generated due
to no pressure, the tolerance is large, the strength of the casting is low,
and the environmental pollution is serious.
2.What is forging?
The metal blank is heated to the ideal working temperature and an external
force is applied thereto to change its shape, density, mechanical properties
and grain structure, and the processed forgings must also be trimmed.
According to the workpiece temperature section during processing, it can
be divided into three types: hot forging, warm forging and cold forging.
Often used to make mechanical parts that withstand large dynamic loads.
Forged wheel frames are also common in retrofitted vehicles.
▲Forged wheel frame
In terms of advantages, the forged wheel frame reduces air bubbles and
changes grain structure due to pressurization, has small tolerances, and
has high strength for forgings. In terms of shortcomings, due to the high
cost of the mold, it is not suitable for small-scale production, the process is
complicated, and the shape complexity is limited.
3.Why is the forged wheel frame better than casting?
The price factor is set aside because forgings have higher strength and
density and can withstand higher stresses, and the weight of the forged
frame is lighter than that of a rigid cast frame.
The advantage of the lightweight weight of the wheel frame can reduce
the energy loss transmitted by the engine to the rear wheel, thereby improving
the acceleration performance and improving the braking performance.
In terms of price, the forged wheel frame is obviously more expensive than
casting, but the forged wheel frame is lighter in weight and uniform in mass
distribution, and the wheel gyro effect is lowered to improve the handling
performance of the vehicle.