Corresponding to DIN 8589, both las

Corresponding to DIN 8589, both laser cutting and circular sawing belong to subtracting disintegration processes. However, they differ in the type of machinery involved and the energy costs and waste production associated with the cutting process. For circular sawing, the disintegration process occurs when one or more cutting wedges induce a force locally and concentrated into the workpiece. Thereby,the material is compressed above its strength and the wedge penetrates into the workpiece disintegrating the chip and creating a new developed surface. Wedges are arranged on a rotationally symmetric base in a circular saw (Gottlo¨ber 2014); thus,superimposing the rotatory motion of the cutting wedges with the feed motion of the workpiece leads to a cycloidal motion of the teeth throughout the workpiece. As the kerf width relates to the width of the cutting edge, sawing produces chips with ageometrically defined cutting wedge (DIN 8589-6 2003), in contrast to laser cutting.