Fig 6-19 - ASME 1994 and orientation (profile versus position)
Fig 6-19 - ASME 1994 and orientation (profile versus position)
(OP)
Does the profile in Fig 6-19 / 1994 (ASME) controls orientation or this job is reserved for the position?
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Fig 6-19 - ASME 1994 and orientation (profile versus position)
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Fig 6-19 - ASME 1994 and orientation (profile versus position)Fig 6-19 - ASME 1994 and orientation (profile versus position)(OP)
Does the profile in Fig 6-19 / 1994 (ASME) controls orientation or this job is reserved for the position?
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RE: Fig 6-19 - ASME 1994 and orientation (profile versus position)
The outline cannot be rotated sufficiently to extend through the LMC and MMC outlines. That is an orientation control.
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JHG
RE: Fig 6-19 - ASME 1994 and orientation (profile versus position)
John Acosta, GDTP Senior Level
Manufacturing Engineering Tech
RE: Fig 6-19 - ASME 1994 and orientation (profile versus position)
Or I am not sure why.
RE: Fig 6-19 - ASME 1994 and orientation (profile versus position)
John Acosta, GDTP Senior Level
Manufacturing Engineering Tech
RE: Fig 6-19 - ASME 1994 and orientation (profile versus position)
I am curious. What lead you to ask this question?
pylfrm
RE: Fig 6-19 - ASME 1994 and orientation (profile versus position)
Maybe it is the wording of associated paragraph in the standard (6.5.5.1):
"In this example [fig. 6-19], the basic dimensions and the profile tolerance establish a tolerance zone to control the shape and size of the feature."
Because of presence of A in the profile callout, that statement seems incomplete at best.
By removing A from the profile callout in the 2009 standard, this problem was solved.
RE: Fig 6-19 - ASME 1994 and orientation (profile versus position)
But I agree that the actual relationship to datum A is controlled by position, and you make a good point about the picture now matching the text description.
John-Paul Belanger
Certified Sr. GD&T Professional
Geometric Learning Systems
RE: Fig 6-19 - ASME 1994 and orientation (profile versus position)
With the presence of A in the profile callout, it will not only control the shape and size geometric characteristics but also the orientation, the table below is a good reference. (quote from Alex's Advanced Concepts of GD&T page 22-9)
Thanks pmarc lead me to look at this table, you catched the point shape and size.
RE: Fig 6-19 - ASME 1994 and orientation (profile versus position)
That is my opinion based on pmarc's referenced paragraph from 1994.