Abstract
Irregular vibration of circular saw blade caused by complex forces in the process of cutting harms the operators, product quality and the life of circular saw blade. In this paper, the modal analysis of circular saw blades with different slot length and four kinds of unequal slot length saw blades are carried out based on the finite element theory. The vibration characteristics of circular saw blades with different slot length is studied. The results show that the natural frequency and the maximum deformation increase with the increasing slot length. In the case of higher order after the 5th order, the phenomenon is even more obvious. The effects of slot length, slot depth and diamond segment on natural frequency are compared. The results show that slot length has the greatest effect on natural frequency. Circular saw blades of different structures with unequal slot length can be selected to avoid resonance during operation.
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