Minor cutting edge angles of sawing teeth: effect on cutting forces in wood

Abstract Optimising the cutting tool geometries can reduce waste while increasing timber yield. The industry is moving towards thin-kerf bandsawing of timber, and therefore, geometry minor edge first flanks teeth become more important. Six with varying angles ( $$0^{\circ }$$ 0 ? , $$2^{\circ 2 $$4^{\circ 4 $$6^{\circ 6 ) clearance were tested by into heartwood sapwood frozen non-frozen Norway spruce Picea abies (L.) Karst.) Scots pine Pinus sylvestris L.). Single tooth tests conducted, feeding forces measured. higher for due to its density. Frozen resulted in forces. force stood out as it was highly negative (i.e. self-feeding) compared heartwood, sapwood. An increase angle angles, therefore room elastic spring-back, lead up less friction 40% lower Higher less-negative but remained relatively unchanged other wood conditions.