Общий каталог Tungaloy 2020 - 2021 - страница 1683

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Arithmetic mean roughnessMaximum heightTen point mean roughness GradeInsertExt. ToolholderInt. ToolholderThreadingGroovingMiniature toolMilling cutterEndmillDrilling toolTooling SystemUser's GuideIndex User’s Guide - Technical Reference A Surface Roughness (According to JIS B 0601, 2001 and its explanation.) Type Symbol How to determine Example (Fig.)Ra means the value obtained by the following B formula and expressed in micrometer (μm) when sampling only the reference length from the roughness curve in the direction of mean line,taking X-axis in the direction of mean line and Y-axisRain the direction of longitudinal magnification of C this sampled part and the roughness curve is expressed by y- f (x): where, R: reference length D Rz shall be that only the reference length is sampled from the roughness curve in the directionof mean line, the distance between the top ofprofile peak line and the bottom of profile valley E line on this sampled portion is measured in the Rz longitudinal magnification direction of roughness curve and the obtained value is expressed inmicrometer (μm). F RzJIS shall be that only the reference length issampled from the roughness curve in the directionof its mean line, the sum of the average value of G absolute values of the heights of five highest profile peaks (Zp) and the depths of five deepest RzJIS profile valleys (Zv) measured in the verticalmagnification direction from the mean line of thissampled portion and this sum is expressed inwhere,Zp1,Zp2,Zp3,Zp4,Zp5:altitudesoftheheightsoffive highestprofileH micrometer (μm) peaks of the sampled portion corresponding to the reference length R where, Zv1, Zv2, Zv3, Zv4, Zv5 : altitudes of the depths of five deepest profile valleys of the sampled portion correspondingto the reference length RI J K L M Tungaloy L095