Coordinate measuring machine (CMM) is a kind of high precision measuring equipment, which has attracted much attention and been widely used for its characteristics of high precision, high efficiency and high reliability. As one of the components of CMM, granite's physical characteristics and material are also one of the key factors affecting the popularity and use quality of CMM.
However, whether different types of granite will produce differences in the measurement results of the coordinate measuring machine has been hotly debated. In practical application, many users will have a large difference between the measurement results and the real value, and these errors are often related to the granite material used.
First of all, different granite materials have different mechanical hardness and elastic modulus, which directly affects its deformation resistance and deformation resilience. The greater the mechanical hardness of the granite, the stronger its deformation resistance, for the coordinate measuring machine for long time, high strength measurement adaptability is also higher. The larger the elastic modulus of granite, the stronger the deformation resilience, can return to the original state more quickly, thereby reducing errors. Therefore, in the selection of CMM, granite materials with higher mechanical hardness and elastic modulus should be selected.
Secondly, the granulation of granite also has a great influence on the measurement results. Some granite material particles are too large or too small, the surface roughness is too large, these factors may cause the error of the coordinate measuring machine. In order to obtain accurate measurement results, special attention needs to be paid to the surface quality and degree of processing when selecting granite materials.
In addition, the thermal expansion coefficient of granite material is different, and different degrees of thermal deformation will be generated for a long time measurement. If the material with a small coefficient of thermal expansion is selected, the error caused by the different coefficient of thermal expansion can be reduced.
In short, the impact of different types of granite materials on the coordinate measuring machine is different, and the appropriate granite materials should be selected for measurement according to the needs. In actual use, it should be comprehensively considered according to the physical characteristics of granite and material processing quality to obtain more accurate and accurate measurement results
Post time: Apr-09-2024