With the accelerating speed of industry and development, mechanized production methods in part of the production has gradually replaced the hand-made, especially in the manufacturing industry. As part of the more important parts of the use of the environment is relatively, such as in high temperature, high pressure and other environments, to use the parts of the solidity of the parts, the quality of the parts to meet the relevant standards, which puts forward the requirements of the quality of machining. Machining quality is mainly composed of two parts, namely, machining accuracy and machining surface quality. Only two important aspects of machining for strict control, the quality of machining can be well controlled, the quality of mechanical products can also meet the use of standards.