Machinability of Metals : Effect of Microstructure of Metals on Cutting Mechanism, Continued Report

Abstract

The effect of microstructure of work materials on machinability was investigated from the viewpoint of cutting mechanism. The work materials with martensite, bainite, troostite, Widmanstatten, sorbite, pearlite microstructure were used and these materials were tested over a wide range. The effects of microstructure of work materials on cutting force, mean frictional angle on tool face, conventional shear angle, inclination angles of starting and end boundary lines of the flow region, sector angle of the flow region, shearing stress on shear plane and tool face, conventional shear strain, shear strain on end boundary line of the flow region were discussed. The effect of microstructure of work materials on machinability was made clear.