Study on the strength of composite material for CNC grinder base structure

In this study, it is possible to find a suitable composite material for the strength of the composite foundation of CNC grinding machine to replace the use of metal base. To reduce the weight of CNC grinding machine and can increase its seismic capacity. The main points of this study are: 1. Structural stiffness analysis, stress and deformation of the structure caused by the external load distribution of the CNC machine. 2. Vibration frequency analysis, analysis of the natural frequency of grinding machine will be avoided resonance. The study result appears as following, max value of equivalent stress and average amount of displacement in structural rigidity analysis are 0.67(Mpa) and 0.92(μm). And modal analysis compared with the experimental, the average error percentage was less than 10% of parts. The whole structure percentage error does not exceed 3%, shows the results of analysis and practical percussion data conformance with nice, and has its reference value in the structural design phase.