So, going to scratch building a chassis and really fancy a go with a tig for the fiddly bits..

Which one?

Thanks,
Steve

http://www.r-techwelding.co.uk/welding_equipment/Tig_Welder/Tig_Welders_R-Tech_Tig160PDC

After sale service is second to none, as much free advice as you need.

I second R-Tech!

160amp big enough to construct a chassis and suspension components?

quote:

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Originally posted by coozer
160amp big enough to construct a chassis and suspension components?

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2mm mild/stainless takes about 60-70 amps to give you an indication.

Another vote for rtech, both my mig and Tig came from them

Sorry to sidetrack but have been looking at giving Tig a go at some point. Can I ask is it possible to get reasonable with a tig just with practice? Or is it wise to get some tuition?

A vote for R-tech TIG161, great machine

You can learn tig yourself, get a nice machine and it makes it easier, there are plenty of instructional videos from weldingtipsandtricks.com

Edit: personally I wouldn't weld a chassis withou plenty of practice on other things and destructive testing of welds...

[Edited on 3/4/14 by DanP]

Practice, practice practice.

Make sure you are comfortable, and enjoy.

My RTEC is really good, 200amp model but I do not think I have ever run above 100amps, decent auto mask is a must, I also have a small water cooled torch which is much easier to use, made the cooler from an old central heating pump and 2 gallon tank.

Get a welder, brake your TIG cherry making a nice stand on castors to move it and the bottle around.

It is lovely after MIG, takes much longer but no splatter and more satisfying IMHO.

I have never bothered with the slope, pulse functions, just waggle the pedal

My advice would be that before you blow your whole welding budget on the TIG set you look into
the argon supply side of things.
TIG is very gas hungry, mainly due to the slow nature of the process. If the plan is to use it on stainless
then the probable need for back purging compounds this issue still further.


HTH
Paul G

Check out the Inverter Fusion solid state range.

I have one, and it's fantastic. It has all the extra bits such as pulsing, timing for spot welds, etc.

Ok, can I use the mig gas bottle I have to weld mild steel? Its a argon mix with oxygen and Co2??

Has to be argon, you will need to trade your bottle, gauges will be okay.