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Re: Re: Angularity and Profile of Surface


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Posted By<" ">David Schenken on December 31, 2001 at 00:09:40:

In Reply to: Re: Angularity and Profile of Surface posted byDon Day on December 10, 2001 at 14:16:33:

: : What is the real difference between angularity and profile of a surface. Are'nt they interchangable, same thing?

The difference is seen in the following:

angularity -
1)requires datum reference(s)
2)controls only orientation of axes, line
elements, planes*

profile of a surface -
1) may not require datum reference
2) can control co-planarity, location,
orientation (surfaces, not axes), form

So, there is overlap between the two controls, but neither is a superset to the other making eliminating either one difficult.

* Also controls form indirectly by limiting departure of surface - similar to flatness control


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