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Question on controlling form and position of irregular features

Question on controlling form and position of irregular features

Question on controlling form and position of irregular features

(OP)
Section 8.8 and Figure 8.24 of ASME Y14.5-2009 discusses the control of form and position of irregular features. Figure 8-24 shows an example where the profile tolerance is larger than the positional tolerance. Is it a necessary condition that the profile tolerance be larger than the position tolerance? Can the position tolerance be larger than the profile tolerance in a similar example?
TIA for your inputs.


Tunalover

RE: Question on controlling form and position of irregular features

Short answer - yes, the position tolerance can be larger than the profile tolerance.

RE: Question on controlling form and position of irregular features

Cannot see why not - imagine that you use profile to control the size of (round) hole. Your hole size tolerance may be larger or smaller that position tolerance - there is no refinement.

"For every expert there is an equal and opposite expert"
Arthur C. Clarke Profiles of the future

RE: Question on controlling form and position of irregular features

(OP)
Thanks guys!

Tunalover

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