So i don’t even have a tig welder yet, but I sure would love to learn! I was wondering, since there are different grades of alluminium and stainless do you need to have different filler wires as well or can you use the same? Like using the same filler for 6061 and 7075? Thanks! Don't teach yourself...

Inverters in general are very nice, weld excellent, consume less power, and will die without being able to be fixed (in many/most cases). That last fact has to be balanced in the equation in my humble opinion. They can always be fixed. Just comes down to finding the component(s) that went pop and r...

try grinding a nice clean V, heat the weld area cherry red to clean out the oil. set the torch slightly carbonizing before you braze. craig Years ago in NZ, there was a flux that was used to tin the edges of cast iron before using the standard CI bronze flux. It was labeled as " Unity Flux &qu...

I believe the world of high amp tig welding requires the use of a torch the size of a small club, not comfortable I would assume? Brad Or more creative solutions to draw the heat out of the torch lines. Every shop I worked in with 350 / 351 Syncrowaves, Squarewave TIG 355's, et al, always used WP 2...

Would some 1/16" or 3/32" hard facing stick rods be an option ? Polish after flux is removed.

Cheaper and easier to obtain without breaking the bank.

You could call Lincoln Tech. Some years back , a friend bought a Idealarc 300, ex USN ( Mare Island ), called the tech line with the serial #, and Lincoln had all details of the original spec / hook up.

Get some draw ( wing nut) type clecos, they will make your life a lot easier and use their holes for your plug welds.

Use a staggered ,two row, layout if possible, so you have a good fit on the backside.

Lightning wrote:

aland wrote:thinking about this logically the aluminum would need to be in the 1" - 2" range to require that many amps...

Don't weld a lot of aluminum, do you?

Here's a manual that will give you info on the required power supply ; that's something to be considered.

http://www.lincolnelectric.com/assets/s ... /im467.pdf

It's not unusual to max out a 350 A machine.

I've briefly used one many years ago and liked it a lot, far easier to use that the Aerowave we had. The owner used it on a daily basis; the reason he replaced it was it cooked the main board and one wasn't available at the time and he needed a machine yesterday. He did eventually get a board and pa...

What grade aluminum is your base metal ?

There's the possibility it is a non-weldable grade.

Around 2002 , KTM were using 7020 tube for their moto-x and enduro sub frames, also the Dakar V twins, and welded with 5087 rod. Modified sub frames were never post weld heat treated and never cracked. As KTM have expanded ( ownership, etc ) it's possible they have changed to a (cheaper) 5000 series...

[quote="Donniev" I've been welding the 68 4" flanges........................................ We roll it over after they're all tacked and check 1 or 2 flanges quick to make sure we're good...haven't cut any tacks yet...o and we start at one end or the other[/quote] Thanks for your rep...

We didn't figure for any distortion in the pipe, it's there but not a concern. I bet if we Lasered the flanges the middle one would be 1/4" or so lower than the end ones... distortion isnt something that's typically thought about on the bigger stuff, especially here since install is going to b...

Many thanks to all who have provided information and opinions.

Makes for a much more informed choice. Cheers.

kiwi

A question for our Australian members. A friend in QL is considering one of these two machines. Application would be for motorcycle parts and repairs. The idea is to eventually set it up with a cooler unit and a 20 series torch. https://www.tradetools.com/product-range/welding-equipment/welding-mach...

Using a dark sulphur cutting oil, Rigid make a good one, will do wonders for drill life and ease of cutting.

If you can source some 2024 sheet, cut a strip to use as filler.

I've seen .040" 2024 T 3 welded using this method. And the job went out the door......

rick9345 wrote:

Coldman wrote:Gasp

No dental Xrays
No ER xrays
Lead suits mandatory.


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I wish the forum had a "like" function

Paranoia over radioactivity from 2% thoriated electrodes can be described as thus ;

" He (she / they) exemplified the the precautionary principle to such a degree that would have prevented evolution."

Unless ............... for wear ) as a last resort if you don't intend to change this connection on a regular basis you could use a thread seal / lock product though this is hardly an ideal scenario - I'll be interested to see the outcome as I only tried dealing with Rapid once & will not be ag...

Reasonably happy for a first try but my biggest problem is seeing the weld area. Played with helmet settings but just can't nail it. Esab or Optrel low amp specialty helmet in my future I think. Do you get a red flare that covers the puddle ? That is a factor of the lens. It's not an uncommon probl...

He is going to contact Stahlwerk again and see if someone can give an answer; he 's in a welding supplier desert............ I agree about changing the receptacle to a Dinse 25, but there is the warranty issue; if the machine takes a dump , then it gives them a excuse to void the warranty. The origi...

Thanks Josh, I just measured a water cooled 35 adapter and the connector plug-in diam is 1/2 ", so going by that, this thing is special size.

It would be nice though if we could borrow a 25 to check.

I'm trying to come up with a decent torch package for a friends Stahlwerk 200A TIG unit. It has a Dinse style connector on the power cable ( with a separate gas line, M16 x 1.5 ) but the connector is 8.75mm diam; height at the divot is 9.85mm, and the divot is at the very end of the fitting, The rec...