part description trouble
part description trouble
(OP)
our CM dept is insisting that a dimensional value be included in a part description. i don't think that's correct in that if the part changes physically (size change) the description of the part (embedded dimension) no longer matches the physical dimensions of the part. is there a spec (possible mil-spec as that's what we do) that could clarify this?
thanks for you time.
thanks for you time.
Sr. Pro/E Mechnaical Designer





RE: part description trouble
I think for small standard parts washers for example in the IFI book they want the Size of the washer in the description. (ID OD Thickness) For an easy simple part this makes sense. For a more difficult part say a multiple stepped shaft what do you use for sizes in the description.
RE: part description trouble
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RE: part description trouble
I put dimensional values in part descriptions sometimes. Sometimes it matters to me. Why does it matter to your CM department?
What is your CM department? Coordinate Measuring? Configuration Management? Corporate Manufacturing? There must be some sort of context to this discussion.
RE: part description trouble
CM said they need the dimensional info in the description so purchasing knows what to get. i believe the drawing should be the control for what purchasing needs to do any purchasing. BTW the part in question is a square heatsinking material which has its own part number and drawing calling out the size that it needs to be diecut to
Sr. Pro/E Mechnaical Designer
RE: part description trouble
What is Engineering anyway: FAQ1088-1484: In layman terms, what is "engineering"?
RE: part description trouble
Generally speaking, if form changes a new part number is assigned anyway. I agree that the drawing should control what is purchased, but a drawing tends to contain much more detail than whatever size you can squeeze into the title.
"Good to know you got shoes to wear when you find the floor." - Robert Hunter
RE: part description trouble
Matt Lorono
Lorono's SolidWorks Resources & SolidWorks Legion
&
RE: part description trouble
RE: part description trouble
But you must be careful that the purchasing guy (or gal) doesn't shortcut the system and only provide the description to the vendor and not the associated drawing which might have other specs that need to be met also...
"WASHER FLAT #1/4, 17/64 ID, 9/16 OD .052" MAX. THICK STEEL ZINC"
RE: part description trouble
I'm a little confused by your reply.
To address what I think you mean, naming of parts is covered by ASME Y14.100 Engineering Drawing Practices in section 5 "DRAWING TITLES".
To address what you actually asked, numbering of parts is also covered by ASME Y14.100 in section 6 "NUMBERING, CODING, AND IDENTIFICATION".
So the answer to both questions, yes.
Matt Lorono
Lorono's SolidWorks Resources & SolidWorks Legion
&