joolsmi16
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| posted on 16/5/09 at 04:40 PM |
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mobile welding
Hi all, has anyone heard of a welding licence that must be had to offer a mobile welding service?
Also apart from public liability insurance what else would be needed welding qualifications ...
Last one, why is arc welding popular on an industrial level and not mig? I have been looking for a big enough generator to run my 200amp mig and arc
welder generators seem to be very well priced.
Thanks all
Jools
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dinosaurjuice
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| posted on 16/5/09 at 04:53 PM |
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you can use an ARC welder outside or in a draughty warehouse without loosing your 'shield'.
Mig is sometimes 'reverse polarity' and cause problems if welding to a earthed structure with electrical equipment.
[Edited on 16/5/09 by dinosaurjuice]
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gazza285
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| posted on 16/5/09 at 05:21 PM |
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Arc welding is popular on site because it's cheap and convenient as well, no bottles to worry about, and if you need to get anywhere difficult
you only need to extend the leads. No license needed, but you will need public liability and certs to prove you can weld. Welding certs are obtained
by having a sample of your welding both non destructive and destruction tested, types dependant on what welding you will be doing eg multiple overhead
fillet, full pen open butt etc etc.
DO NOT PUT ON KNOB OR BOLLOCKS!
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joolsmi16
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| posted on 16/5/09 at 06:44 PM |
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mobile welding
Thanks for reply, interesting stuff
Jools
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MakeEverything
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| posted on 17/5/09 at 08:55 AM |
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Also, make sure you get the right generator. Youll need a 46kW (50kW) generator to run at 200A, which is
HUGE for a single phase machine.
Most portable generators are smaller than that, so you might want to look at a generator and inverter setup but again, youll need to make sure you get
the correct inverter.
Kindest Regards,
Richard.
...You can make it foolProof, but youll never make it Idiot Proof!...
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gazza285
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| posted on 17/5/09 at 01:08 PM |
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quote:
Originally posted by MakeEverything
Also, make sure you get the right generator. Youll need a 46kW (50kW) generator to run at 200A, which is
HUGE for a single phase machine.
Most portable generators are smaller than that, so you might want to look at a generator and inverter setup but again, youll need to make sure you get
the correct inverter.
?
You don't need a 46kW generator to run a 200A welder, you need one to run 200A at 240V, but welding voltage is a lot lower, around 30-40v, so
flat out you'll need at most a 10kW.
What we use are things like this;
Genset
DO NOT PUT ON KNOB OR BOLLOCKS!
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liam.mccaffrey
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| posted on 17/5/09 at 01:09 PM |
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mig is used in an indusatrial setting often with fluxcored wire both with and without a shielding gas
I am a oil storage tank engineer and on a new tank there is a lot that can be done with a mig process.
the vertical shell welds and the floor annular plates are by far the most highly stressed in a storage tank and are mostly done with a mig process.
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