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An Attempt to Model the Main and Normal Cutting Forces Dependencies between Cutting Parameters and Some Strength Properties of Wood by Flat Longitudinal Cutting

Porankiewicz Bolesław

Computational Methods in Science and Technology

2022

Vol. 28, No. 1

27--35

This paper evaluates multi-factor, non-linear dependencies of main (F C ) and normal (trust) (F N ) cutting forces, from chip thickness (ap), rake angle (γF ) and some strength properties, namely the compression strength parallel to wood fibers (RC∥), tensile strength perpendicular to wood fibers (RT ⊥), shearing strength parallel to wood fibers (RS∥) and bending strength (RB), for three North American wood species (analyzed altogether), by opened, flat, longitudinal cutting and very low cutting speed, based on work [1]. In the analyzed relations, several strong interactions were evidenced, graphically illustrated and discussed. Although a wood density (D) and a moisture content (mc), were not taken into account in this study, very good fit was obtained. The lowest influence of the RC∥ on the F C and the F N cutting forces was observed.