Crouping machines for sawing logs and bars. Tutorial

The designs of various types of round-pounding machines are considered: machines with a log by a trolley (CDT-6M, CDT-7, KARA, CDS-710, etc), machines with Valtsova or chain feed, machines with conveyor feed, machines for transverse cutting of logs (AC -1, LC-60, PA-15, etc) Information about the design of round saws of steel 9XF according to GOST 980-80, as well as with attacking plates of hard alloy VK15 and a stallite according to GOST R 54489-11, are given. The information about the preparation of saws for work has been set out. The norms of the accuracy of the installation of saws on the machine are given. Information on the theory of sawing wood is given, the methodology of calculations is set out. In a new way, questions are disclosed on the period of resistance of the cutting tool and the methodology of calculations. Examples of solving direct and reverse problems are given. The textbook is intended for students of technical schools and colleges studying in the specialty Woodworking Technology