How do the machining accuracy and surface roughness of granite components affect the repeated measurement accuracy of CMM?

With the continuous development of the manufacturing industry, the precision requirements are getting higher and higher. As an important measuring equipment in manufacturing industry, CMM has been paid more and more attention by people. However, the quality of the component used in the measurement of CMM directly affects the measurement accuracy, and the manufacturing precision and surface roughness of the granite component have a direct impact on the repeated measurement accuracy of the CMM.

First of all, the manufacturing accuracy of granite components has a very large impact on the accuracy of measurement. Higher precision granite components can provide more precise support and positioning, thereby reducing the deformation of the component and the small displacement when in contact with the machine, thereby improving the measurement accuracy of the CMM. However, components with low manufacturing accuracy will have some deviations during installation due to the problem of machining roughness, which will directly affect the measuring accuracy of the CMM.

Secondly, the surface roughness of granite components also has a very important impact on the accuracy of repeated measurement of CMM. The smaller the surface roughness, the smoother the component surface, which can reduce measurement errors. If the surface roughness of the granite component is large, it will lead to uneven small fluctuations on the surface of the component, and then affect the contact state of the CMM, resulting in a large error of repeated measurement.

Therefore, for CMM granite components, it is necessary to strictly control the manufacturing accuracy and surface roughness of the components. Manufacturing accuracy needs to ensure that the dimensional accuracy required by the design is strictly implemented during the processing process to ensure component accuracy. Surface roughness needs to take appropriate technological measures in the machining process, so that the roughness of the component surface can meet the measurement requirements.

In short, the measurement accuracy of the CMM is closely related to the manufacturing accuracy and surface roughness of the granite components used. In order to ensure the stability and accuracy of measurement accuracy, it is necessary to strengthen the quality control of granite components in the actual use process to ensure its consistency and reliability.