|Jul30-12, 04:48 PM||#1|
What is acceptable thread breathing (radial expansion)?
How much breathing of a threaded joint is acceptable? Is there a rule of thumb?
The specific application is a stainless steel cylinder with a threaded end. The cylinder is pressurized and an axial load is applied to the threaded end. Under FEA the threaded end bell-mouths away from the thread.
With seals (AS4716), an acceptable level of breathing is defined: .0015 in/in radial breathing for every inch of bore.
But, is there such a rule for threads?
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