Thread: Welding pipe to RHS

Hi

Dont know how helpful this would be but, if you had a piece of plate say 10mm+ you could clamp this to your rhs frame underneath the weld area then clamp the pipe to the plate in the angle you need it. Then tack your pipe in place.
Im sure Grahame will be able to offer a few more ideas.
A photo would help though!

Good luck

Mitch

Thanks Mitch a piece of plate then some packing may have done the job. I don't have a photo as I was trying to help someone out. Just imagine some pipe having to be welded to RHS but at an upward angle of 15 degrees or so. The pipe was heavy enough that it just wanted to drop down.

Try tacking a scrap to the end of the pipe to support it while you weld the other end to the rhs. If this is not possible then a couple of pieces of wood and a clamp down to the ground?

Chipman

G'day Tiger
It may depend on how often you will need to work off square - for odd jobs, bits of plate/scap and a few clamps, while fidely, will work. If you intend to do more work like this, you can get magnetic clamps that look like a bevel and allow you to set any angle you wish.
regards
Piney

If it was me, I would just cut the required angle on the pipe and then just hold it up by hand, tack and then adjust as necessary tacking more solidly as I went. The only reason to jig it would be if you had more than 5 to do and maybe if the pipe was long and unwieldy.

Robert

Piney, can these magnets be adjusted to any angle?

Specialist, if I had a spare hand available, I'd do it the way you suggest but I have one of those older helmets that you flip down so that your eyes are protected so you don't have a spare to coordinate everything.

Hi Tiger
Missed this one. I did.

Maybe this would suit.
Be sitting down when you check the price.
http://www.magswitch.com.au/angles/3...omerangle.html

It is either get someone to hold the thing in place or make something.Surely there is somebody you can get to hold it.

Just ensure you don't burn your assistant or flash them or you will not get a second chance.

Failing that, what about something like in the photo with magnets attached?

Grahame

After you have had the strong drink to recover from the shock of the purchase price of the commercial magnets you might try something like this.

You will need to have the type of el cheapo welding magnets that have holes right through them. Some types do,others don't. You will need to the the hole type as you can't drill through magnets.
Some 25 x 3 flat ms paired , add some bolts and friction washers and you in business. Bingo adjustable magnet jig.

Grahame

Thanks, Grahame, yeah great product but the price! I can usually work out how to hold things but on this occasion the pipe with all its weight kept moving on me. I like your magnet idea, and I do have magnets with holes in them, but what do you mean by friction washer?

Usually fibre washers that allow you to tighten the pivot bolt enough to hold it still, but with a little effort you can still move it and adjust it with undoing it.

Thanks, Yonnee.

Hi,

The friction washers ( thats what I know them as) can be installed on all pivot points .By using them and bolt and wing nuts in the appropriate areas, you should end up with a fairly versatile tool.

Something that I omitted to say, was about putting in a tube sleeve at the pivot point of the strap.This will prevent crushing of the straps as the bolt is tightened up.

Even maybe go to the length of multiple holes (matching of course ) down the length of the straps to make a super versatile unit
Crikey! we had better patent this idea before the Chinese spot it.

Cheers
Grahame

Lets us all know how it works out, please!

Turn buckle?

Thanks again Grahame, I won't get an opportunity to have a go at the job for a little while but in the mean time you've given me some ideas about jigging the work up. I will try and come up with something that is versatile and can be used for a number of jobs.

Spooled, like the idea of the turnbuckle and they are cheap so will try and use that for fine tuning. Thanks.