"I'm not really a welder"

Author
Discussion

Smiler.

Original Poster:

11,752 posts

231 months

Wednesday 2nd August 2017
quotequote all
It's true, I'm not.

But I might want to dip my toe in the flux tin of self-fabrication.

What would be the best rig for welding stuff like re-bar or mild steel plate/box section?

And what should I expect to pay for decent kit?

Also, what makes/models are reliable/good value for money.

Thanks.

smile



PS: max 20A SPN elec supply where relevant.

Dan_M5

615 posts

144 months

Wednesday 2nd August 2017
quotequote all
Gassed Mig or Big if you want to splash out.

All depends on the thickness of the metals you want to weld

Smiler.

Original Poster:

11,752 posts

231 months

Wednesday 2nd August 2017
quotequote all
Dan_M5 said:
Gassed Mig or Big if you want to splash out.

All depends on the thickness of the metals you want to weld
Rod around 5-10mm dia

Plate/box around 5mm

I like the idea of a BIG welder

No, wait.....

hehe

Toltec

7,161 posts

224 months

Wednesday 2nd August 2017
quotequote all
The plate would be easy with a stick welder, though the rod would be trickier, this would be the cheapest course and you could probably pick up a cheap secondhand set to give it a go.

MIG/MAG single phase 20A would have plenty of output for 5mm plate, the rod would take a little practice as you will tend to miss with the wire sometimes.

TIG single phase 20A would handle 5mm, however it is a slower and more expensive process, a lot of TIG sets can also be used to stick weld though so this would give you some flexibility on what process you used.

Get an auto darkening mask, a lot of the cheaper ones are fine, I have a Parweld one and the only issue I have is that if I have the spot lights above my bench on it will darken randomly as you move your head even without an arc struck.

To sum up, find a cheap stick set and give it a try, if you cannot get on with it try and find someone to give you a go with MIG and TIG and see which suits you and your budget.

bobtail4x4

3,717 posts

110 months

Wednesday 2nd August 2017
quotequote all
A kid walking along the road finds a welding mask...
He's walking along playing with the mask when a stranger stops and asks if he needs a ride. The kid is a ways from the part of town he's headed to so he accepts. After a bit the guy says "Hey kid, do you know what frottage is?" The kid says "Nope." The guy continues "How about voyeurism?" The kid says "Sorry, but no." The guy says "What about blowjobs?" Finally, the kid pipes up "Look, Mister...I'm not really a welder. I just found the mask."

paulwirral

3,154 posts

136 months

Wednesday 2nd August 2017
quotequote all
bobtail4x4 said:
A kid walking along the road finds a welding mask...
He's walking along playing with the mask when a stranger stops and asks if he needs a ride. The kid is a ways from the part of town he's headed to so he accepts. After a bit the guy says "Hey kid, do you know what frottage is?" The kid says "Nope." The guy continues "How about voyeurism?" The kid says "Sorry, but no." The guy says "What about blowjobs?" Finally, the kid pipes up "Look, Mister...I'm not really a welder. I just found the mask."
That's the one I remember and expected .

King Herald

23,501 posts

217 months

Wednesday 2nd August 2017
quotequote all
Get a 180 amp Mig welder, and you will be able to weld easily the rods and the plate, with good penetration. Mig is so easy to pick up.

You will need to hire a bottle of Argoshield gas, or whatever is the flavour of the month nowadays.

I have a cheapie 130 amp Mig and it is good up to about 3mm plate, on a good day. Have to make sure everything is good and clean, including the earth clamp.

Skyedriver

17,891 posts

283 months

Wednesday 2nd August 2017
quotequote all
paulwirral said:
bobtail4x4 said:
A kid walking along the road finds a welding mask...
He's walking along playing with the mask when a stranger stops and asks if he needs a ride. The kid is a ways from the part of town he's headed to so he accepts. After a bit the guy says "Hey kid, do you know what frottage is?" The kid says "Nope." The guy continues "How about voyeurism?" The kid says "Sorry, but no." The guy says "What about blowjobs?" Finally, the kid pipes up "Look, Mister...I'm not really a welder. I just found the mask."
That's the one I remember and expected .
Me too, small world.

Follow up really to the "Why do you call your dog Porky?"

mondeoman

11,430 posts

267 months

Wednesday 2nd August 2017
quotequote all
I've used a Clarke 135 Turbo for welding 10mm plate with 0.8mm wire: took a bit of pre-heat, but then it'll do the job, so more than man enough for your 5mm baby plate smile


omniflow

2,583 posts

152 months

Wednesday 2nd August 2017
quotequote all
Google "Mig Welding Forum" and then follow the most obviously named link you find.

Lots and lots of information on there about welders and welding.

I have a 185 Amp Portamig. It will do up to about 3mm on a 13 amp plug. Put on a 20amp plug and you can get full penetration on 6mm plate. You can probably get cheaper machines with the same power, but the Portamig is really easy to use and can go as low as 15 amps for welding body panels.

Also - dig into the options for Gas - you really need Argoshield light (or similar) - I've got a contact with BOC under a "Volkszone" deal - but I'm not sure if it's still available.

anonymous-user

55 months

Wednesday 2nd August 2017
quotequote all
You can get rent free bottles these days but you do want a suitable gas mix as this makes the welding easier.

I would also suggest a power file to clean the metal surfaces before welding, a decent self darkening mask and lastly cover up when welding. The UV from the arc can give you sun burn.

Smiler.

Original Poster:

11,752 posts

231 months

Thursday 3rd August 2017
quotequote all
Thanks all. Off to G00gle I go......

King Herald

23,501 posts

217 months

Thursday 3rd August 2017
quotequote all
A friend of mine bought a gasless wire welder, 'flux-core', from Harbour Freight in the USA. I had heard all the bad vibes about that sort of thing, but for a 120 amp welded this thing did really, really well.

While I was at his place he welded some steel tube onto his hot rod frame, and I thought it would be a disaster, with some rust and paint still on the tube in place.

I would not even attempt to do such a weld with a Mig. This cheapie welder blasted a good solid weld right into that stuff. Horribly messy weld, but it certainly looked strong.

Might be worth considering for simple fabrication. I think the flux being right in there at the weld point, rather than as a gas cooling the weld, might be the key to good penetration.

normalbloke

7,461 posts

220 months

Thursday 3rd August 2017
quotequote all
King Herald said:
A friend of mine bought a gasless wire welder, 'flux-core', from Harbour Freight in the USA. I had heard all the bad vibes about that sort of thing, but for a 120 amp welded this thing did really, really well.

While I was at his place he welded some steel tube onto his hot rod frame, and I thought it would be a disaster, with some rust and paint still on the tube in place.

I would not even attempt to do such a weld with a Mig. This cheapie welder blasted a good solid weld right into that stuff. Horribly messy weld, but it certainly looked strong.

Might be worth considering for simple fabrication. I think the flux being right in there at the weld point, rather than as a gas cooling the weld, might be the key to good penetration.
Do NOT consider starting out with gasless. It does have its uses, but generally it's freaking rubbish.

King Herald

23,501 posts

217 months

Thursday 3rd August 2017
quotequote all
normalbloke said:
Do NOT consider starting out with gasless. It does have its uses, but generally it's freaking rubbish.
I was thinking that for welding re-bar to flat plate it might be an easy and cheap option.



EggsBenedict

1,770 posts

175 months

Thursday 3rd August 2017
quotequote all
Smiler. said:
Thanks all. Off to G00gle I go......
http://www.weldequip.com/mig-welders.htm

I've got a PortaMig one. It's excellent.

I've had the cheapy SIP/Clarke ones, they're a bit crappy and hard to get good results.

You can get gas from these guys: https://www.hobbyweld.co.uk/find-an-agent/ with no monthly rent.

With welders, it's very much buy cheap, buy twice.

That said, I do also have a Clarke stick (arc) welder. It's good for what it is

normalbloke

7,461 posts

220 months

Friday 4th August 2017
quotequote all
King Herald said:
I was thinking that for welding re-bar to flat plate it might be an easy and cheap option.
Stick would be better and cheaper for that job. With a half decent set and good rods, it'll far out perform MIG. Plus, if you get half decent on stick, it'll put you in good stead for MIG, which is almost idiot proof.

Toltec

7,161 posts

224 months

Friday 4th August 2017
quotequote all
normalbloke said:
King Herald said:
I was thinking that for welding re-bar to flat plate it might be an easy and cheap option.
Stick would be better and cheaper for that job. With a half decent set and good rods, it'll far out perform MIG. Plus, if you get half decent on stick, it'll put you in good stead for MIG, which is almost idiot proof.
That was what I was thinking too, no need to muck around with gas either.

OP, don't forget to buy a grinder and some flap discs too. Unless you buy a welding mask with a grinding function then I'd recommend using a full face shield for grinding rather than goggles, they don't mist up as easily and protect all of your face, getting grinding sparks up your nose is not that nice.

King Herald

23,501 posts

217 months

Friday 4th August 2017
quotequote all
Toltec said:
normalbloke said:
King Herald said:
I was thinking that for welding re-bar to flat plate it might be an easy and cheap option.
Stick would be better and cheaper for that job. With a half decent set and good rods, it'll far out perform MIG. Plus, if you get half decent on stick, it'll put you in good stead for MIG, which is almost idiot proof.
That was what I was thinking too, no need to muck around with gas either.

OP, don't forget to buy a grinder and some flap discs too. Unless you buy a welding mask with a grinding function then I'd recommend using a full face shield for grinding rather than goggles, they don't mist up as easily and protect all of your face, getting grinding sparks up your nose is not that nice.
You can pick up a good usable stick welder for about £65 in Machine Mart.

I have one I bought from Screwfix some 15 years ago, £85 and apart from adding an extra cooling fan to stop it overheating, when on full power for longer periods, it has seen great service ever since.

hkp57

285 posts

123 months

Saturday 5th August 2017
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For some great welding advice this site is very good

http://www.mig-welding.co.uk/