Abstract
In this report, frequency analysis on some lapped surface roughness are made. The profiles of turning specimens recorded on a magnetic tape are obtained using the stereo type pick-up which is rewired so as to measure the vertical displacement of its stylus.The conclusions obtained are as follows;……1) When logarithmic plot of frequency is taken on the axis of abscissa, frequency analysis curves of lapped surface roughness, that are called spectrum curves, show the Gaussian distribution approximately.This fact concurs with some results of other investigations on periodicity of lapped surface roughness2) The frequency corresponding to the peak position of Gaussian curves is considered to be the mean frequency.3) A constant functional relation between the output voltage at the mean frequency and the center line average roughness is derived.
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