Abstract
Car is a complex Machinery product which is composed of many kinds of components. Many of the technical information for product development can not be calculated but can only get through the test currently. So some people say that the car is made by test. Drive axle is an important automobile transmission parts in the car. The stable of vehicle drive system is a key part which is to ensure the car’s fuel economy and dynamic. Drive axle that works in a bad environment is the most important part in the vehicle transmission. According to the industry's standard of state, when there is a significant improvement、new design or Product's quality assessment in the drive axle, drive axle must to be tested. Therefore, it is necessary to test drive axle.
