Sujet : Re: Outdoor Welding
De : null (at) *nospam* void.com (Richard Smith)
Groupes : rec.crafts.metalworkingDate : 09. Jul 2025, 08:17:33
Autres entêtes
Organisation : BWH Usenet Archive (https://usenet.blueworldhosting.com)
Message-ID : <m1jz4hhlyq.fsf@void.com>
References : 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
User-Agent : Gnus/5.13 (Gnus v5.13)
"Jim Wilkins" <
muratlanne@gmail.com> writes:
"Jim Wilkins" wrote in message news:1043b3k$3hded$1@dont-email.me...
>
I'm having trouble analyzing to learn from this. What is the load direction
on the inner ring that your weld must resist?
---------------------------------
>
More specifically I assume that if the inner ring bears weight the
upper weld could fail in tension (+shear?) across its throat area. The
lower weld might shear along the column so punch press math could
apply, or to the extent the fit is loose or the column can expand and
the ring shrink the shear could be along a shorter line angled toward
the weld throat. Does that make sense?
>
If the load is a mooring line I'd have to know how it's attached.
>
I have similar geometry in two recent projects, one a shop-made
stainless solar array thrust bearing with the ring retained in the
tube by a circle of screws, their inner ends turned smooth and loosely
fitting in a groove in the ring. The load on the cap passes through
the races and balls to the ring below, so the outer tube is only
shielding.
>
The other is a thick sleeve with an integral ring inside threaded
internally. It adapts this to a non-HF floor jack.
https://www.harborfreight.com/steel-floor-jack-cross-beam-64051.html
Per previous - leave-alone this line of thought. It will be designed
for "special" load-conditions.