CNC turntable as an important part of the processing center, the main realization of the processing of the rotation index and z feed. Compared with other functional components, turntable in the processing area, by the cutting fluid, the workpiece chip and cutting force, the working environment is very bad, easily lead to the occurrence of failure and rotation accuracy of excessive attenuation, is the impact of domestic processing center reliability Of the important factors.

The purpose of the reliability enhancement test is to elicit failure in a shorter test time. The technology is derived from the aging test of the 1950s, and its theory is based on fault physics, through the study of faults or failures, Root cause failure to achieve the purpose of improving reliability.

In foreign countries, the reliability of the application of electronic products and mechanical and electrical products in the application and promotion of the reliability of the product has been greatly improved, the use of high-speed electronic life test equipment and get satisfactory results in the statistical model, test profile and Data collection and analysis and other aspects of a lot of work carried out. The domestic reliability enhancement test is still in the exploratory stage due to the limitations of the test method and the test equipment.