Stability diagrams and chatter avoidance in horizontal band sawing

A Critical Reanalysis of Uncontrollable Washboarding Phenomenon in Metal Band Sawing

“…A common case of errors when cutting with band saws is the occurrence of a characteristic wave on the cut surface. In recent years, a number of papers analyzed the problems of loss of stability in the cutting process of band saws where the authors Used signals of sound pressure, vibrations and cutting forces for the proprietary method of detecting chatter vibrations, which in this case were independent of the workpiece geometry and cutting parameters [ 6 , 7 ]; Developed a model in which the free length of the saw blade, cutting speed, and feed speed were taken into account to determine stability regions, which avoid the presence of chatter vibrations when cutting [ 8 ]. Two strategies have been proposed to avoid this type of phenomenon, the first of which is to reduce and the second to increase the cutting speed to find working parameters outside the area where there would be a risk of loss of stability [ 8 , 9 ].…”

“…Developed a model in which the free length of the saw blade, cutting speed, and feed speed were taken into account to determine stability regions, which avoid the presence of chatter vibrations when cutting [ 8 ]. Two strategies have been proposed to avoid this type of phenomenon, the first of which is to reduce and the second to increase the cutting speed to find working parameters outside the area where there would be a risk of loss of stability [ 8 , 9 ].…”