Thread Relief
Thread Relief
(OP)
What is the Proper way to callout "Thread Relief" on a drawing.
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RE: Thread Relief
For instance in the UK on male UN threads there was actually a spec (BS 1936 maybe) that addressed this to some extent, if I'm understanding your question correctly.
KENAT, probably the least qualified checker you'll ever meet...
RE: Thread Relief
http:/
BS1936 part 2 for metric.
http://en
From memory it essentially defines the tool to be used, based on thread size, which in turn gives you the dimensions for the actual cut-out. It's a bit backward from normal drawing practice but there you go.
As I recal from working with part 1 it gives some details on how to call it out on the drawing, but with more consideration I'm not sure it fully answers your question.
KENAT, probably the least qualified checker you'll ever meet...
RE: Thread Relief
RE: Thread Relief
If this is not the case, reference ASME Y14.6-2001. I believe it shows multiple methods of dimensioning and representing complete and/or incomplete threads which would include a thread relief.
Hope this helps.
RE: Thread Relief
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RE: Thread Relief
RE: Thread Relief
I've attatched a very rough copy of the scheme in fig 13.
Figure 12 is a larger view and specifices the actual diameter of the undercut.
Madmango & WhitmireGT make a valid point. What do you mean by 'Proper'?
KENAT, probably the least qualified checker you'll ever meet...