Attach this spring to DOM tube?

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Any good ideas how I can best attach the 1” DOM on the ends to the 3/4” spring?Guessing if I weld it, the spring is gonna go to **** instantlyIt is made of tempered spring steel

www.FirehouseFabricators.comZachMillermatic 255Lincoln SW200Hypertherm Powermax 45xp2x4 CNC Plasma Table.
Reply:How far into the dom tubing is the spring going in?
Reply:JB weld or possibly silver solder it.Miller Multimatic 255
Reply:I think you can tack it without hurting the spring temper too much, with that said, longer beads will probably ruin the temper. I have seen springs on gate closers that were welded with some good tacks.NRA LIFE MEMBERUNITWELD 175 AMP 3 IN1 DCMIDSTATES 300 AMP AC MACHINELET'S GO BRANDON!"Those who would give up essential Liberty, to purchase a little temporary Safety, deserve neither Liberty nor Safety.” BENJAMIN FRANKLIN
Reply:Can you slide a solid rod into the spring and pinch the exterior of the dom into the spring and solid rod or are aesthetics of concern?Lincoln, ESAB, Thermal Dynamics, Victor, Miller, Dewalt, Makita, Kalamzoo.  Hand tools, power tools, welding and cutting tools.
Reply:Drill a hole in the pipe and plug weld it?Do not believe everything that you think.
Reply:

Originally Posted by BrooklynBravest

Any good ideas how I can best attach the 1” DOM on the ends to the 3/4” spring?Guessing if I weld it, the spring is gonna go to **** instantlyIt is made of tempered spring steel
Reply:What does the ends of the spring look like? Maybe a photo 📸 Dave

Originally Posted by BrooklynBravest

Any good ideas how I can best attach the 1” DOM on the ends to the 3/4” spring?Guessing if I weld it, the spring is gonna go to **** instantlyIt is made of tempered spring steel


Reply:Devise a catch to hold the spring.  Heat and Bend the end to be held. Will it need to be replaced, ever.  I think welding will ensure it needs replacement regardless of how well you restore its integrity.
Reply:

Originally Posted by BrooklynBravest

Any good ideas how I can best attach the 1” DOM on the ends to the 3/4” spring?Guessing if I weld it, the spring is gonna go to **** instantlyIt is made of tempered spring steel


Reply:

Originally Posted by 52 Ford

Pin it in place. Drill a through hole in the tubing, insert the spring, drive in a pin with a pointed end, then cut it to length and peen it over or weld it to the tube.
Reply:old garage door installer taught me to weld those overhead door springs by welding 2 of the spring coils together about an inch long. did this so door could be used until new spring could be ordered.  sometimes many, many months went buy before new spring was replaced.lincoln 125spdayton 250 ac/dcmiller 211 w/spool gunahp  200 sx tiglotos ltp5000dkubota b3200 FEL BHof course duramax diesel
Reply:You can braze it if you keep the heat down it will not ruin the temper. Any kind of welding anywhere and it will be trash.The best way since the the brazing is difficult to do without getting too hot is to low temp silver solder it.We braze and silver solder flexible cable into prop stub shafts for our high end R/C race boats which is same idea as what you want to do without taking temper of of the flex cable.
Reply:I suppose some context would of helped. So this is intended to be a pop out curtain rod for a training prop I make for firefighters. The spring flexes to pop the DOM sleeves apart I’m thinking maybe a flat plate welded to the end of the tube through the spring.

www.FirehouseFabricators.comZachMillermatic 255Lincoln SW200Hypertherm Powermax 45xp2x4 CNC Plasma Table.
Reply:.The spring flexes to pop the DOM sleeves apart
Reply:

Originally Posted by Oldiron2

.By that you mean the spring gets pulled into a U shape so the black tubes can pull out of the orange holders? Meaning there's no great tension on the spring-to-tube joint? Do the springs have formed ends already; I assumed not, hence my suggestion of pinning in Post #7. Or, the spring end could be annealed and formed by you; with no great force involved, even overly-soft ends would work, although careful annealing wouldn't cause that.If the ends are formed, attaching a 7/8-1" (whatever fits) wide S-hook to the loop and welding the hook into the tube end would be easier.
Reply:So one spring is $180.Good news is, 40 of them is $400. So I’m gonna order 40 and hope I’m right. Will be making an end cap with a spring stud welded into it after its clipped onto the spring loop.www.FirehouseFabricators.comZachMillermatic 255Lincoln SW200Hypertherm Powermax 45xp2x4 CNC Plasma Table.
Reply:If you took a solid rod instead of tubing, you could tread the inside so the spring would screw into the rod. The spring tension would hold it in place. Similar to a Helicoil.Airco Auto-Pak 130Forney 235AC/DC
Reply:

Originally Posted by Roert42

If you took a solid rod instead of tubing, you could tread the inside so the spring would screw into the rod. The spring tension would hold it in place. Similar to a Helicoil.
Reply:

Originally Posted by BrooklynBravest

So one spring is $180.Good news is, 40 of them is $400. So I’m gonna order 40 and hope I’m right. Will be making an end cap with a spring stud welded into it after its clipped onto the spring loop.
Reply:Walk out and look at the roll up spring that pulls a cable to lift your garage door,, and make something similar.Don't have a garage door with a spring,,?? walk over to your neighbor and look at his garage door,, 80% chance one of you two has the spring.Do not reinvent the wheel,, I mean the spring attachment,,that has been being perfected for garage lifting for over a half century,, that is tough to compete with.Trust me,, LOTS of garage door springs were broken, before the modern end attachment was developed.
Reply:Just ordered 40 custom springs with hook ends for $400. Spring stud in the end cap welded on.The quantity to price ratio is ridiculous. To order a sample is $180. To order 40 is $400, so I'm going on faith it will work.www.FirehouseFabricators.comZachMillermatic 255Lincoln SW200Hypertherm Powermax 45xp2x4 CNC Plasma Table.
Reply:

Originally Posted by BrooklynBravest

Just ordered 40 custom springs with hook ends for $400. Spring stud in the end cap welded on.The quantity to price ratio is ridiculous. To order a sample is $180. To order 40 is $400, so I'm going on faith it will work.
Reply:If that is all it is for just epoxy the spring in with West System 650 GFlex. Quick and easy and not going anywhere.Clean tube and spring good first is all. Maybe coarse up spring with 60 grit  for better bond but the 650 is strong stuff and adhesion is unreal.Last edited by danielplace; 04-13-2022 at 08:47 AM.
Reply:Not sure why you keep asking us for advice when you typically come up with the best ideas on your own anyway. I've also seen cultivator springs use those cast end plugs threaded in... they take a lot of abuse....The harder you fall, the higher you bounce...250 amp Miller DialArc AC/DC StickF-225 amp Forney AC Stick230 amp Sears AC StickLincoln 180C MIGVictor Medalist 350 O/ACut 50 PlasmaLesI say use "FLEX-SEAL" it does everything else,,If the FLEX-SEAL alone does not work,, add some FLEX-TAPE,,,HECK, FLEX-SEAL can survive a tornado!!
Reply:

Originally Posted by whtbaron

Not sure why you keep asking us for advice when you typically come up with the best ideas on your own anyway. I've also seen cultivator springs use those cast end plugs threaded in... they take a lot of abuse....
Reply:When was manufacturing I would make springs in shop.It only take a few minutes to make a large spring. The small springs I just buy by the bag. Not wroth the time. Dave

Originally Posted by BrooklynBravest

Just ordered 40 custom springs with hook ends for $400. Spring stud in the end cap welded on.The quantity to price ratio is ridiculous. To order a sample is $180. To order 40 is $400, so I'm going on faith it will work.
Reply:

Originally Posted by smithdoor

When was manufacturing I would make springs in shop.It only take a few minutes to make a large spring. ... Dave
Reply:The last time purchased spring wire in coil was Amazon. I just use round stock and a lathe on slow speed.  I just drill a hole to hook the wire the round stock. Drill a larger hole in keyway stock and put in the tool holder. Then engage the half nut and turn on the lathe stop when it long enough. Dave

Originally Posted by Oldiron2

As always, good pictures (or even detailed instructions) showing how, would be would be informative and more impressive... including what steel and how you come to have what type and sizes you happen to need.
Reply:I think the tube should be swaged over the spring, tightly gripping it.Otherwise, I'd drill and insert a skinny pin across the mouth of the tube and then fiddle the spring over it and then "screw it in".
Reply:It is good idea but cost of dies and equipment is problem. Dave

Originally Posted by metalmagpie

I think the tube should be swaged over the spring, tightly gripping it.Otherwise, I'd drill and insert a skinny pin across the mouth of the tube and then fiddle the spring over it and then "screw it in".