Ways to secure/weld studs/bolts to a plate
Ways to secure/weld studs/bolts to a plate
(OP)
I need to weld or secure bolts to a steel plate that will be an mounting adapter plate. We are replacing an older gearbox (quite large, about 800 pounds) with a newer one, which, of course, has a different bolt hole pattern. The adapter plate will have studs protruding down into the old bolt holes of the original mount, and have studs protruding up to match the bolt holes in the new gearbox. I plan on making holes through the plate (about 1/2" plate) for 3/4" studs and welding the studs into place from the back side, possibly with a chamfer in the hole to get a good weld (The back side of the plate at each stud must be flush). I understand that something like this was done before and a stud wrung off when tightened during installation. I know that welding will weaken the studs. Any suggestions? Bolt or stud? Material? How to weld? Where to weld? Shape of hole? Thanks, Steve





RE: Ways to secure/weld studs/bolts to a plate
Hg
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RE: Ways to secure/weld studs/bolts to a plate
http://www.emhart.com/products/pk/screws.asp
HgTX mentions Nelson studs - they specialize in discharge weld studs that don't require holes, which are usually used for lower force applications.
http://www.nelsonstud.com
Regards,
Cory
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RE: Ways to secure/weld studs/bolts to a plate
(e.g. small roll pins installed in blind holes drilled parallel to the stud axis but offset through the thread pitch cylinder.)
Mike Halloran
Pembroke Pines, FL, USA
RE: Ways to secure/weld studs/bolts to a plate
RE: Ways to secure/weld studs/bolts to a plate
Get a tubular wrench head from the hardware for each bolt (i.e the type you interchange for a ratchet spanner) put this around the head of the bolt on the blind side, and weld this to the plate rather than the bolt head.
This will be sufficient to tighten the bolt.
RE: Ways to secure/weld studs/bolts to a plate
http://www.merko.no/Kataloger/Gjengeinnsatser.PDF
Mike Halloran
Pembroke Pines, FL, USA
RE: Ways to secure/weld studs/bolts to a plate
RE: Ways to secure/weld studs/bolts to a plate
RE: Ways to secure/weld studs/bolts to a plate
diameter. What are the hole patterns? Do any of
the holes match?
RE: Ways to secure/weld studs/bolts to a plate
http://www.aetnascrew.com/wheelhvy.htm