Since then, people have come up with a wheel, they do not cease to improve it. Wheel, or rather wheels, great make life easier for people, helping them to quickly move themselves and goods over long distances.
However, it needs more traction motors or horses, and most importantly - the road. Now things have changed, not the old wooden wheels, studded with iron. Now car wheels - it's complicated, but at the same time simple and reliable design, representing a metal base, which wears a rubber car tire, is often available within the air chamber. Here are just a form of wheels today, as before, remained round. And rightly so, since the square wheel drive is probably not very comfortable.
An important part of the automobile wheel is its foundation - a metal disc. Do motorists who acquires or automatically mount wheels for your car, there are several options. The principle of selection wheel depends on the material means that it can invest in this venture. An important parameter of an automobile wheel as a whole, is its weight.
The smaller the total weight of the wheels of the car, the better are its agility and handling. Judge for yourself, wheels, untwisted operate at high speed as the flywheel, and if you want them to stop quickly, it will not do so-and-easy, because the flywheel continues to spin out of inertia. In light wheel inertia mass is naturally smaller. However, light and durable Wheels are more expensive.
Currently, automobile wheels offered by many manufacturers, can be divided according to the method for manufacturing a stamped, on the cast or forged. Pressed disk very simple to make, have the lowest price and are widely available. For stamped discs commonly used low-cost steel sheet, which has a large mass and subject to corrosion.
Because of this, steel wheels are covered by a protective primer and enamel, which is in operation collapses. In the event of a collision automobile wheel steel disk on the obstacle takes the pressure off themselves and because of good ductility of the material can only distort its shape, but not break. It is also a positive quality of steel wheels.
Alloy wheels for automobile wheels are manufactured by casting. The material used aluminum alloys, so that alloy wheels are obtained approximately 20% lighter than forged, which significantly increases the car's handling. When casting these discs use a specially designed designers designers molds that give the aesthetic appearance of the discs.
A positive aspect of alloy wheels is the fact that they are very well remove heat from the brakes due to their good thermal conductivity. The disadvantage of cast wheels is their increased fragility under mechanical impact, because in the process of pouring the alloy is formed in a crystalline structure. The casting process is more complicated than punching, and alloy wheels are more expensive.
Best, but also the most expensive car wheels going on the basis of forged wheels. Technology of their production is pressing of titanium-magnesium alloys under high pressure. Thus obtained disks have a high impact strength and low weight, which is almost 50% lighter than steel stamping.
These discs are significantly enhance the dynamic characteristics of driving, especially at high speeds. Forged alloy wheels also recommended for use on racing and sports cars. However, these disks are inherent and some of the disadvantages associated with the difficulty of self-installation.
