datum targets
datum targets
(OP)
we have a forging. one of the datum points is right on the raised marking (part number) letter. where in Y14.5 saying the datum point should be moved/adjusted?
thanks.
thanks.
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RE: datum targets
Harold G. Morgan
CATIA, QA, CNC & CMM Programmer
RE: datum targets
Another trick used on castings is to cast in raised points to be used as datum targets. Maybe they are multi-purposing their part number.
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JHG
RE: datum targets
After doing a quick search I was just able to find following statement in para. 4.3.1:
"Datum targets should be located as follows:
[...]
(c) on features not subject to processing variables, such as parting lines, flash extensions, etc.[...]"
If on the drawing you are dealing with the height of marking is not decently controlled (because for instance it is not critical from functional point of view), I think this falls under the 4.3.1(c).
RE: datum targets
Tunalover
RE: datum targets
What is Engineering anyway: FAQ1088-1484: In layman terms, what is "engineering"?