Increase of effectiveness of pipes frictional cutting by disk saws with modified profile of tooth

As a result of research and analysis of pipes frictional cutting operation the reasons of low operability of disk saws are established. Influence of technological conditions on forces of cutting, firmness of saws and quality of end faces of the pipes cutting operation is established. The ways of increasing the endurance of disk saws and ensuring quality of end faces of pipes on cutting operation are shown. Results of researches can be used at metallurgical and pipe-rolling enterprises.