Spoke alloy wheels, Heng Ding Machinery Co., Ltd. would have to say about it the difference between the production process, combined with different production processes, created by the wheels of the strength, quality, density, there are big differences in price side is different. Aluminum wheel manufacturing method of the more popular there are three: gravity casting, forging, low pressure casting. Forged alloy wheels stronger than cast wheels is 18%, while the weight is 15 percent lighter, but the manufacturing process are higher, the current alloy wheels (wheel hub) or in the main cast. Gravity casting is a lot of low-cost cast aluminum wheel lock used in the manufacturing process, it is the use of gravity to the solution poured into the mold aluminum, polished after forming process by the lathe, to complete production. Manufacturing process is relatively simple, without precision casting process, low cost and high production efficiency, but prone to bubbles (commonly known as trachoma), uneven density, surface smoothness is not enough. Many of the early domestic brand products are produced using gravity casting wheel. Low-pressure casting is the main wheel manufacturing process, it is 0.1Mpa the low pressure casting, the casting method of forming good, clean cut, density, smooth surface, can achieve high strength, lightweight, and to control costs. The most popular high-end manufacturing process modified wheel is forged, the forging process is to block thousands of tons of aluminum ingots from the press directly on the extrusion die, the advantage of uniform density, the surface smooth and soft, thin wall wheels light weight, high strength material than the third year by more than casting methods, but require more sophisticated equipment and yields only five to Liu Cheng, higher manufacturing costs. The current principal will be divided into forged wheel monolithic, two-piece and three piece, the main point is that the wheel structure, the entire wheel monolithic as a whole, is not removable, while two-piece and three style is that the hub of the outer ring, inner ring, ring face some high-strength screws through a "combination", so that owners can choose a better, different "combinations" can make different styles, colors and parameters of the forging wheel.
