Analysis of cutting forces in concrete scratching and circular sawing process

摘要

Diamond saw blades are widely used in cutting concrete materials in civil engineering industry. Concrete is a kind of typical difficult-to-cut composite material. The cutting forces in concrete scratching and sawing processes were investigated in this paper to provide basic information for properly selecting sawing conditions and optimizing blade structure. The signals of cutting forces under different scratching and sawing conditions were acquired and the factors affecting the cutting forces were analyzed. The results show that the property of composition in asphalt concrete has significant influence on the instantaneous cutting forces in scratching process. The effect of cutting speed on cutting forces is smaller than feed speed and depth of cut in concrete sawing processes.