Show us your best welding

[Hood]

Here is one from me, done better, done worse but happy enough.

 

[Richard.]

I know this thread has been running a while so to restart it it here is a tig fusion weld mild steel plate to bright drawn bar @ 100 amps done by a amiter

I know it’s just a mess about mate but alway use filler if your welding on steel.

 

[eSCHEn]

Here is one from me, done better, done worse but happy enough.

View attachment 140893

EWM back in service there?

 

[Hood]

EWM back in service there?

That was before it was out of service

 

[D5meister]

This is my best one, I got given a load of 1" squares in mild steel.
Done a cube,. hit it with belt sander.

 

[Hammy]

A few randoms of mine,

Maybe a stupid question. but why are some welds rainbow coloured and others not ?

 

[Hood]

Maybe a stupid question. but why are some welds rainbow coloured and others not ?

Stainless and Titanium and to a lesser extent steel will show the oxidisation as multi colours, Alu will not.

 

[Richard.]

Titanium

If this one does you’ve wrecked it.

 

[Hood]

If this one does you’ve wrecked it.

I wreck everything

 

[Ian James]

I know it’s just a mess about mate but alway use filler if your welding on steel.

Hi Richard. I had no reason to use filler as all I wanted was a very fine weld to hold the pieces together as it's part of a slide nothing that's going to to be under any particular stress

 

[HughF]

Hi Richard. I had no reason to use filler as all I wanted was a very fine weld to hold the pieces together as it's part of a slide nothing that's going to to be under any particular stress

You still need to use filler, steel will crack when fused without, you need the deoxidisers in the filler, even if it's just a little dab with some thin filler

 

[Ian James]

@HughF well in that case I have been warned when it cracks I know it was because I did not use any filler

 

[Badger1bear]

Nowt special, this was on a Rotar 500 grab, I like the challenge of awkward to get to jobs, jobs that have a good chance of catching fire with hydraulic fluid lol jobs that are in a rush when a machine goes down. We don’t mind getting down and dirty...... we don’t need an operating room to perform in

 

[Brad93]

I know this thread has been running a while so to restart it it here is a tig fusion weld mild steel plate to bright drawn bar @ 100 amps done by a amiter

You never want to do a fusion (autogenous) weld on steel. Always use the right filler. Bright steel has Chromium in it too.

 

[Ian James]

Well i have done it now from searches done before hand there is arguments for and agains on metolagy grounds i know application dependant of course

 

[Richard.]

Well i have done it now from searches done before hand there is arguments for and agains on metolagy grounds i know application dependant of course

Hi mate.
I haven’t seen any metallurgical arguments going for the welding of steel without filler other than the fact it’s cheaper and easier.
The filler contains deoxidising agents which purify the liquid pool from oxides.
You might find it does what it’s supposed to and holds out but the joint will be compromised
It’s likely it contains porosity from the lack of deoxidising achieved from the filler. This can quite easily crack and in your case even more likely because of the thickness involved meaning fusion will be lacking, very fast cooling is inevitable and thickness is weight so it’s under some force.
I’m not trying to diss what you’ve done but to save you the costly mistake of assuming it’s a sound weld and applying the same technique to something more critical. It’s always my advice if your tig welding steel to use a suitable filler material.
On steel that gage in your pic whether it holds or not I’m struggling to understand why you didn’t use filler.

 

[Ian James]

Hi mate.
I haven’t seen any metallurgical arguments going for the welding of steel without filler other than the fact it’s cheaper and easier.
The filler contains deoxidising agents which purify the liquid pool from oxides.
You might find it does what it’s supposed to and holds out but the joint will be compromised
It’s likely it contains porosity from the lack of deoxidising achieved from the filler. This can quite easily crack and in your case even more likely because of the thickness involved meaning fusion will be lacking and thickness is weight so it’s under some force.
I’m not trying to diss what you’ve done but to save you the costly mistake of assuming it’s a sound weld and applying the same technique to something more critical. It’s always my advice if your tig welding steel to use a suitable filler material.
On steel that gage in your pic whether it holds or not I’m struggling to understand why you didn’t use filler.

Now Richard. knew the weld would be weaker before I did it and would not dream of doing it on a critical joint the reason for no filler was to keep the weld as small and tucked in to the corner as I could saving me grinding as mutch off corners off the other runner I could of drilled and tapped and countersunk but did it this way because I felt like it the top part slides in the bottom pic to show

 

[Brad93]

Well if the no filler doesn’t get you the undercut will. That’s atrocious.

 

[Ian James]

@Brad93 Are we not just been a little to critical here now with no filler there is bound to be some undercut maybe in future I will not bother posting any weld pics for you to pull to pieces it will be one less less for you to pull to pieces and eventually you will of scared every one away ha ho

 

[Badger1bear]

Ease up guys, we all have good days and bad days and the odd occasion where something isn’t critical so we sometimes say “that’ll Do”

If it was critical or load bearing we all know we would do the job correctly

It’s just a friendly post of show ya welds, let’s step back and have a beer eh ?