Welder

Forum Moderator Joined: 02 Mar 2004 Posts: 19978

well got docs welder last night.

Today I had a look at it and got it working. The reel was a right mess so I had to cut a lot of the wire away. Someone obviously didn't know how to set the thing up! Anyway I have set it up so it works properly now.

Its gonna need a new tip and nozzle tbh.

its a mig90 btw.

Anyway, why the hell can I no longer weld?

Its just a mess! its strong but not pretty. I sealed up holes in an old exhaust and the chipping hammer won't budge the weld.

i also burnt my foot, a hot bit went right through my trainer onto my toe! it hurts a wee bit! lol

Anyway what I am trying to do is build up a pool of weld on a broken stud then secure are nut on it so i can unscrew it, I can't see to get consistency.

btw it crackles like bacon as it should but it seems to spit a bit. Only real adjustment is wire speed, theres 2 switches, high and low and 1/2.

All surfaces are clean and back to clean metal, earth clamp is within a coupel of inches as well.

Any tips anyone?

Level 8 User Joined: 14 Apr 2004 Posts: 278

An ARC welder might be the tool, that way a thin rod can be used to apply a precise weld, and also there will be nothing blocking the view.

But you have to work with what you have. I don't know anything about migs, anyone else?

It's so easy to set things on fire!

I was using the angle grinder a couple of weeks ago and had to direct the sparks towards myself.
So I felt this heat on my leg and face at the same time. I looked down to see that my coat was on fire and the flames were leaping up around me!
Not only that, but the sparks had burned though the pocket, the coat itself, my trousers and was starting work on my boxers! lol!

Forum Moderator Joined: 02 Mar 2004 Posts: 19978

arc welder is to hard to use, I don't know anyone that can actually use them!

Easy on fences and 2 inch cast iron.

i have an arc welder but i can't use it for this stuff it just sticks to the metal or makes a fecking mess.

I set the dry grass on fire earlier! lol

Mr Quoter-vator Joined: 16 Feb 2004 Posts: 7405

does it need gas?

i bought flux core wire for mine, so i didnt need gas...but if its normal wire with no gas it will be difficult i imagine.

Forum Moderator Joined: 02 Mar 2004 Posts: 19978

it is non fglux core but theres gas in the bottle.

I have managed to build up a nice pile of weld in trh hole drileld down the middle of the stud that seems to be solid now.

Its just building it up on the top and through the nut.

turn the gas up a bit?

Level 8 User Joined: 14 Apr 2004 Posts: 278

If the metal that is being worked on is hot, and the stick is hot, an ARC welder will be easiest to use. But yes, it is by no means easy.

That reminds me - One day I got an Oxyacetylene torch and some dry ice!

So the torch is approx 3000 oC and dry ice is around -78 oC.

This should be interesting I thought...
No.
It did absolutely nothing.

Dry ice is cool stuff to play with. I put some in my mouth to get the 'on fire' effect.

Mr Quoter-vator Joined: 16 Feb 2004 Posts: 7405

i dunno

Level 8 User Joined: 14 Apr 2004 Posts: 278

If you are beat then try some stud extractors.

Forum Moderator Joined: 02 Mar 2004 Posts: 19978

i have yet to ever see a stufd extractor work! i have yet to actually also find a stud extractor not snap as well!

Anyway, turned the gas up a bit, seems to have helped a lot.

Stephen any arc tips would be appreciated though mate.

oxy torches are the hot spanner, get anythign shifting!

Level 8 User Joined: 14 Apr 2004 Posts: 278

I have snapped one too!

If you go down the stud extractor route, spray some WD40 over it every half hour for a couple of hours. Then run the welder around the area to heat up the stud and hub. You can grind this off later.

This usually gets most things shifting.

I assume the hub is off the car so that you can get to it at a good angle.

Other than what i have said about everything being warmed up, I don't know enough about welding to advise you on the finer points.

We normally get away with using the ARC to heat things up rather than borrow an Oxyacetylene torch. But then we have a big brute of an ARC welder that came out of a shipyard! (Harland and Wolff)

Site Subscriber Joined: 15 Oct 2004 Posts: 1139

is this my car ur talking about by any chance???

Forum Moderator Joined: 02 Mar 2004 Posts: 19978

nah its 2 sheared bleed nippels, broke manifold stud in a head and a broken manifold stud in a manifold.

Level 8 User Joined: 14 Apr 2004 Posts: 278

Ouch!

Good luck!

Level 8 User Joined: 14 Apr 2004 Posts: 278

You might be able to pick up a low cost oxyacetylene torch. By that I mean one that uses an ordinary gas cylinder.
All that is needed is a high pressue gas regulator and the torch itself.

It is much more effective than a blow torch, and costs alot less to have, and run, than the oxyacetylene one.

Forum Moderator Joined: 02 Mar 2004 Posts: 19978

well doc got this welder off ebay for 35 quid, bastard! I keep meaning to get a mig welder and that way get more practise in! But keep forgetting.

Heres some pics of the welder.

I plugged it in and had a go before popping the side open, after a while the wire stopped. So i opened it

I then sorted that out, I had to cut a lot off though as the wire was kinked. I also tightened up the reel holder so the same wouldn't happen again and its now locked as its not in use.

How it is now

what I had to cut off

also cleaned up the tip and the nozzle etc etc

Site Subscriber Joined: 11 Feb 2005 Posts: 2929

good stuff chris.

Did you have any luck with the bolt in the end?

Forum Moderator Joined: 02 Mar 2004 Posts: 19978

nope

Site Subscriber Joined: 28 Jan 2005 Posts: 3547

well if you come down here i'd give you lessons in arc welding Razz

did it in uni for the very short time i was there...

Mig welding is pish! tbh the heardest part of mig welding is getting the metal clean enough.

Site Subscriber Joined: 28 Jan 2005 Posts: 3547

Mind you, im trying to teach rhys how to mig properly, but its as much use as wiring a kettle backwards and expecting it to freeze.

Level 5 User Joined: 10 Jul 2005 Posts: 112

Dan";p="85556 wrote:

Mind you, im trying to teach rhys how to mig properly, but its as much use as wiring a kettle backwards and expecting it to freeze.

lol

Gay Rights Activist Joined: 07 Apr 2004 Posts: 1268

sounds like u havnt got enough gas chris...

ive had this problem before with these "small" MIG welders....when u use them in anything other than an enclosed environment, u get loads of ooxidisation due to wind literally blowing the gas away! ive got a similar one and i cant use it outside!