Transcription of TECHNICAL DATA TECHNICAL DATA SURFACE …
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TECHNICAL DATA TECHNICAL DATA SURFACE …
PD-4 1st TECHNICAL data TECHNICAL data . SURFACE ROUGHNESS Excerpt from JIS B 0601(1994)and JIS B 0031(1994) TECHNICAL DRAWINGS METHOD OF INDICATING SURFACE . TEXTURE ON DRAWINGS. Excerpt from JIS Z B 0031(1994). Categories of SURFACE roughness Positions of respective indicating symbols relative to indicating symbol of SURFACE Definitions and indications for SURFACE roughness parameters(for industrial products)are specified. They are arithmetical mean roughness(Ra), Each grain SURFACE position is indicated as shown in Fig. includes SURFACE roughness, maximum height(Ry), ten-point mean roughness(Rz), mean spacing of profile irregularities(Sm), mean spacing of local peaks of the profile(S) cut-off value or reference length, processing method, symbol of direction of lay, SURFACE waviness, etc. and profile bearing length ratio(tp). SURFACE roughness is given as the arithmetical mean value for a randomly sampled area.
200 z 400 z 50 z 100 z 12.5 z 25 z 1.6 z 3.2 z 6.3 z 0.1 z 0.05 z 0.2 z 0.4 z 0.8 s 0.8 z 0.4 s 0.2 s 0.1 s 0.05 s 6.3 s 3.2 s 1. 6 s 25 s 12.5 s 400 s 200 s 50 s 1 0 ...
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