Factors affecting the machining of precision parts

Precision parts machining technology was proposed in the 1960s, it is to improve the performance, quality, service life and reliability of electromechanical products, as well as the cross-section of the bar can be an important method, precision machining refers to the machining error less than 0.1m, surface roughness less than RA0.025IXM machining technology, also known as sub-micron machining, precision parts machining level is the level of national manufacturing important symbol.

In addition to fluctuations in hydraulic and pneumatic sources in the machining of precision parts, the working environment has a great impact on the quality of machining, so the working environment is necessary to ensure the quality of machining, the working environment mainly has the requirements of temperature, purification and anti-vibration. Ambient temperature changes on machine tool accuracy is particularly significant, including temperature changes due to thermal factors caused by machining errors, total machining errors (40 70) % of dust can lead to surface scratches on the workpiece and affect the surface quality process, such as vibration occurs, the surface of the workpiece has been processed streaks or fabric traces, the surface finish is significantly reduced.

With the high precision required for parts processing, the requirements of the processing environment is becoming more and more stringent, only from the precision parts processing on the impact of gas pressure fluctuations, ambient temperature changes, external and self-vibration analysis of the three aspects of the precision parts processing factors Many, in order to improve the accuracy of ultra-precision machining, not only to understand the impact of factors, but also must master the solution.