Sir, Geometrical tolerance for surface flatness mentioned 0.05 in feature control frame, but how it is changed to 0.03 , saying all points lie between two plane 0.03 apart on surface .
Thank you for the comment. This is an error on our part, that is a typo. If the Feature Control Frame states 0.05 the tolerance zone should be two parallel planes at 0.05 apart, not 0.03.
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Very good explanation thank you!
The other way to measure flatness is with an optical flat and monochromatic light source.
Sir, Geometrical tolerance for surface flatness mentioned 0.05 in feature control frame, but how it is changed to 0.03 , saying all points lie between two plane 0.03 apart on surface .
Thank you for the comment. This is an error on our part, that is a typo. If the Feature Control Frame states 0.05 the tolerance zone should be two parallel planes at 0.05 apart, not 0.03.
Thank you very much, for clarifying doubt.
Can you please explain how Flatness per area calculation?