... DISCUSSIONS The aim of this study is to improve the relation that allowed calculating cutting forces involved during machining, and to take into account, more precisely, the influence of wood material in ... crack propagation in the wood cutting process influences either the quality of the chip in veneer cutting, or the quality of the residual surface in other cases The theory of fracture mechanics ... gravity to estimate the influence of wood species, and then, calculate cutting forces involved The aim of this work is to find better parameters, linked to wood internal characteristics to estimate,...