I am QC not engineering. We have a couple of young engineers that are using 'Drill' and then put a +/-.002 tolerance. I thought Drill had been removed by ASME at some point, obviously not from your comments. I will have to impress upon them that if they want a hole give a diameter plus the...
Attached are the pictures of sheet 1 and 2. It is my view that the call-outs in question should be detailed on the side view (3rd view down) on sheet 1 not on a cross section on sheet 2.
I am head of QC in a manufacturing company full of engineers and I am constantly arguing with the engineers especially the younger right out of school types about the correct way to detail their drawings.
The latest concerns Datums. This engineer continually places Datums on cross sections...
Engineer is a young guy. We usually work well together but when we (QC) question something like this the reaction is 'well what the hell do you know you are just QC'.
Ok, lets say we stay with what the language is would you say the 1.763 insp. result is acceptable? In addition could detail how you think the language should be.
Thanks
The design engineers response to our question was;
"As the slot becomes more oversize its location becomes less critical. At LMC The location can be off 0.010 more than at MMC."
The dimension 1.753+/-.003 is measuring 1.763.
Note:
We rarely ever see LMC used and when we do it's nearly always...
We are trying to establish if the LMC call out on the attached is applicable in this situation.Detail 20
Thanks
Elton Hughes
Q C Manager
Napco Security Grouphttps://files.engineering.com/getfile.aspx?folder=bc5e4bab-c5cc-4b19-a84c-c4f28ac719fa&file=MH121.jpg
We are trying to determine if the LMC called out on a drawing is truly applicable in this situation. Detail 20.
Elton Hughes
QC Manager
Napco Security Grouphttps://files.engineering.com/getfile.aspx?folder=db9be8b2-4482-49cc-9ff5-6cb909d96d75&file=MH121.jpg
Those that use a blank just refer to the drawing number.We do not have customer numbers since we are the design authority.We have other issues here where half of the product line has part numbers aswell as drawing numbers. That half starts with "A" for released drawings and numbers for pre-prod...
Actually we do not have any specific standards here. Everybody is allowed to do their own thing on the engineering design side even though our print notes start with "Interpret Drawing per ASME Y14.5-1994". The trouble with that is 90% of our engineers no nothing about GD&T. Our VP of...