The Effects of the Oblique Cutting of Wood Perpendicular to the Grain with a Rebating Plane in the Wood Working of the Halving Joint and the Tenon Joint

摘要

This report clarifies the effects of the oblique cutting of wood perpendicular to the grain with a rebating plane in the wood working of the halving joint and the tenon joint. Air-dried specimens of white seraya (parashorea malaanonan Merr.), Sugi (Cryptomeria japonica), and shirakashi (Quercus myrsinaefolia) were used in this study, and were cut by feeding a tool, which was set on the same experimental apparatus as used in the previous report1). In order to compare with the oblique cutting of wood perpendicular to the grain, the oblique cutting of wood parallel to the grain was performed, too. The deformation of the chip and the roughness of the workpiece cutting-surface were observed relatively and estimated sensuously. And the effects of the cutting conditions (the inclination angle (i) of the tool and the depth of cut (tn)) and the workpiece conditions (the wood species, the grain orientation, the annual rings, and the ray orientation of the workpiece) upon them are discussed.