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Does ISO have composite profile?

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Garland23

Mechanical
Dec 4, 2021
103
I "grew up" in the ASME tolerancing world, but my current work is heavily ISO-based. Does the composite profile idea from ASME have the same meaning in ISO?
I've heard that ISO doesn't have composite position (they treat it as two single segments, even if there's only one position symbol centered between the frames). But now I'm curious about profile.
 
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No.
They use a "triangle" symbol for the same task
 
I can't find out any composite profile example in ISO 1101-2017 or ISO 5458-2018, but here is an example from "Geometrical Dimensioning and Tolerancing for Design, Manufacturing and Inspectiuon" 3rd edition by Georg Henzold

2022-08-26_195051_tfil9p.jpg


Is this a legal callout per ISO standards?
Thanks

Season
 
B.12 Example 11: Surface profile specification for a compound feature partially constrained by datums

B.13 Example 12: Surface profile specification for two independent features partially constrained by datums

Addition:
Because of the >< “orientation constraint only” modifier for datum D, that datum does not constrain
translation, allowing the tolerance zones to move in the vertical direction. The detailed rules for
how the datum system constrains the tolerance zone are given in ISO 5459.


ISO 1660:2017

When I said "triangle" I meant ><....as described by Season.


 
Forgot to mention ISO 1660-2017, I can't fint out any composite example in ISO 1660 as well.
Thanks

Season
 
Henzold is using this style a lot. In ISO it's equivalent to single segment as this differs from composite in ASME.
It may be confusing, but it's not forbidden either way in ISO.
 
Thanks!
Yes, I have seen the >< modifier for orientation-only datums. I suppose that would make the lower segment into the same idea as ASME's composite profile (form and orientation, but not location).
 
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