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Off-Topic (Shop Talk) Profile with unequally tolerance

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Profile with unequally tolerance

DJ jerry 11 months ago

Hi guys,

It's been a while in the forum, I'm new to this community.

how the software (2019 R2) calculate the measured profile?

Profile = 0.002 upper tolerance 0.0005

masured = 0.0008

min = -0.0008

max = -0.0002

Thank you, in advance. any suggestions much appreciated.

happy new year to all.

0 Sean Meaney 11 months ago

Hi, What software are you using so we can direct your post to the correct forum ?
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0 DJ jerry 11 months ago in reply to Sean Meaney

PC-Dmis 2019 R2

thanks
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0 bfire85 11 months ago

You have a total tolerance of 0.002 with 0.0005 unequally disposed. So your tolerance band is +0.0005/-0.0015. So if you have two measurements on the negative side of the tolerance, it will report the largest single deviation, which is -0.0008, which is in tolerance. I would report your MAX and MIN within your Profile FCF, so you can see how the measurement is being calculated. When measuring ASME profile in 2020R1 or before, I would report the max and min deviations individually to see if they conform.
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