64 「ロータリーレース」の刃の木材切断曲線について

概要

論文の詳細を見る
Here are studied the problems about the locus of the knife edge of rotary lathe. The centre of the spindle of rotary lathe is taken as the origin of rectangular coordi. nate (x, y) and polar coordinate (r, θ). The knife edge is to progress on the line (y=na) parallel to x axis. The angular velocity of rotation of spindle is w, the traveling velocity of knife edge is v and v/w=ma. Then the results are as follows : 1) The general equation of the locus in polar form (r, θ) is [numerical formula] and the equation is also written as follow. [numerical formula] φ is parameter and shown in Fig. 3. 2) The above equation is approximately written [numerical formula] or [numerical formula] when na/r is small. In actual case na/r is so small that the approximate equation is sufficient. 3) The cutting velccity u is not exactly proportional to radius r and approximately shown as follow. [numerical formula] 4) To hold the cutting angle constant, it is sufficient when the relation is satisfied. 5) Then the thickness of produced veneer is 2π ma.
一般社団法人日本森林学会の論文
1950-11-25