Studis on Quantification of Sensuous Sharpness and Mechanical Sharpness of Wood Cutting Tools. VI. Effects of Sharpness of Knife Cutting-Edge and Adjustment of Plane on Chip Deformation and Surface Quality of Workpiece in Planing of Wood against Grain with a Japanese Hand Plane

摘要

The purpose of this study was to investigate the sensuous sharpness of various new hand planes in relation to knife-edge sharpness in order to obtain fundamental information on the planing with the hand plane. The orthogonal planing tests of wooden boards with hand planes of different knife-edge sharpness was performed. Air-dried wooden boards of hinoki (Chamaccyparis obtusa) and white seraya (Parashorea malaanonan) were planed, and the roughness of surface planed and the deformation of the chip were observed and estimated. Characteristics of planing with various new planes, in which the knives grinded by hand plane makers were equipped, are discussed, comparing planing with the several planes, in which the knives grinded by students and author were equipped.