A Feeble Attempt - Heras Fencing Repair...

[Muggins the Mug]

My friend bought a load of new Heras fencing panels last year, but some of the welds on the tubing has failed.

So, I brought some old pieces of tubing home, to see if I could reweld them. I put the ends of the tubing back together, roughly. Then put a triangular 1mm thick piece of mild steel, across the corners (75mm long). This was simply to see if it could be done. I had removed the galvanising from the area to be welded.

I set the flux core amperage at it's lowest, at 40 Amps and give it a go.

It seemed to be okay on the larger tube, but blew through on the smaller tubing. Do you think this type of repair is achievable?

 

[JOEPRO]

Always flap disc clean the metal before welding. In this case with galv material you really need to grind that coating off well before welding

 

[Kayos]

A herras panel is about 75p though

 

[Erie Fred]

I would put the triangle gusset on the middle of each tube, not on the edge.

What diameter of flux core wire ?

Do you have gas available for solid wire ?

 

[BrokenBiker]

Yes it's achievable, flux core wouldn't be my first option, 0.6mm wire and gas would be ideal, but flux core could do it. if it's blowing through then aim the arc slightly biased to the thicker material so the brunt of the heat goes there, the thinner will melt and wick the puddle over.

 

[Muggins the Mug]

Always flap disc clean the metal before welding. In this case with galv material you really need to grind that coating off well before welding

I did.

 

[Muggins the Mug]

A herras panel is about 75p though

75p?

 

[Muggins the Mug]

I would put the triangle gusset on the middle of each tube, not on the edge.

What diameter of flux core wire ?

Do you have gas available for solid wire ?

0.8mm. I don't have any gas, but the welder will do gas MIG.

 

[JOEPRO]

I did.

I can see in the photos it is not near clean enough for welding. You rubbed a wire brush on it. May as well not have bothered - grinder + flap wheel 60 grit.

 

[Erie Fred]

It appears to be the much thinner zinc layer, electro galvanized (as opposed to hot dipped)

I weld right thru that stuff with gasless flux core, welding EMT thinwall tube for various
projects.

I think you need some more practice on plain steel.

Work on seeing the puddle, moving the puddle
to where it's needed, and tip distance.

 

[Porkypine]

I always used the Oxy Acetylene for welding the corners back on these

 

[Kayos]

75p?

Plus VAT, obvs

Last time I ordered 1500 that is what they cost, clamps and stands were extra

 

[Pete.]

Here's panels break like that bit you only use one clip and it gets windy. You need 2 clips and an old long reach spark plug socket to zip them up.

Get some 1mm sheet, cut into strips about 40mm wide. Wrap them around the big end tube and lay them alongside the horizontal then form them round and lap weld.

 

[Gareth J]

It appears to be the much thinner zinc layer, electro galvanized (as opposed to hot dipped)

I weld right thru that stuff with gasless flux core, welding EMT thinwall tube for various
projects.

I think you need some more practice on plain steel.

Work on seeing the puddle, moving the puddle
to where it's needed, and tip distance.

This.

The metal is so thin that grinding the very, very thin layer of valve back risks making the already thin tubes even thinner.

Run the welder hotter, so it'll blow holes if you try to travel, then stack tacks, ideally removing slag in between.

By being a bit hotter, it'll help burn off the galvanise. Makes for a less than great weld but hey ho.

Ignore the back side, with the acute angle, really hard to do

 

[tom2207]

I always used the Oxy Acetylene for welding the corners back on these

thats why god gave us brazing

 

[Bornfree]

Try 3mm thick gussets, concentrate most of the arc on the gusset plate and just flick it on the tubing.

 

[finyuk2005]

thats why god gave us brazing

you often see heras fencing brazed, likely mig brazed at the factory

 

[Erie Fred]

thats why god gave us brazing

I thought he gave us Rock & Roll......

 

[tom2207]

I thought he gave us Rock & Roll......

no , thats
Sex and Drugs and Sausage Roll

think it was Ian Dury

 

[Erie Fred]

no , thats
Sex and Drugs and Sausage Roll

think it was Ian Dury

Rod Argent.....from the "UK"......