トラバース研削機構の研究 (第1報)

Abstract

Accumulation phenomenon and size generation mechanism in traverse grinding show quite com-plicated processes on the wheel surf ace along the wheel width. In order to make these processes clear, the experimental analysis of traverse grind-ing was conducted by widely changing the speed ratio, Kv, the setting depth of wheel, Δr, and the number of total steps, m, (the ratio of the wheel width over the traverse feed per one revolution of the workpiece). The following results were obtained : (1) One of the typical characteris-tics of accumulation phenomenon in traverse grinding is that it changes in such a way that some part of accumulation amount is relieved during the 1st step and the rest of it is transmitted to the next accumulattion. (2) When m is large enough, the size generation effect does not exist on the trailing edge of the wheel surface. In this case the limit residual stock removal, (dr) c, assumes a constant value which has nothing to do with the variables of Kv and ΔT. (3) The relationship between the real cutting depth of wheel, Δ (n), and the size generation amount, ΔR (n), is given by ΔR (n) =c {Δ (n) - (dr) l}, where c is the size generation rate. (4) The main factors which govern the changing processes of size generation mechanism are the displacement between wheel axis and work axis, the wheel wear during each step and the size generation rate.