Aluminium tig guide getting started.

[Popcorn]

Though not really anodising, they often apply a anti-slip coating to the surface of aluminium chequer plate.

 

[chip]

Great thread pal, really useful.

 

[Macfun]

How must I check it

Use the below flowmeter at the end of the torch.
Then you are sure the gas reaches the tungsten with the correct flow.
You may have obstructed hose or sticked valve (even if your stuff looks recent/new).

 

[Benna]

Ho there everyone. I changed the settings to the following.
Peak current 80amps
Basic current 30%
Arc force 10amps
Pulse frequency 100hz
Pulse duty 0
Cleaning width area 30%

I cleaned the Aluminum qith a wire brush.

When welding on a flat face it makes a good puddle and its welding very good looking. As soon as I try to weld a outside corner its a mess. The puddle doesnt want to form properly and also the filler wire doesnt want to melt it only makes a big ball and then the corner burns a big hole.
Its realy frustrating.
Here and there the corner welds ok but overall its a massive struggle

 

[Cheesie]

Show us a photo of your tungsten after a weld,

 

[Hood]

What gas flow? outside corner welds may require more gas than inside corner or butt welds as there is nothing containing the gas.
It may also be your torch angle.

 

[Dutch Welder]

Stop using pulse, you are complicating it way more then you need too.
Get it welding correctly on unpulsed AC, then you can finetune it with pulse (but I doubt you would need it, most people I know don't use pulse on AC)

 

[carbon]

How thick is the aluminium?

 

[davenport]

Looks more like a gas problem to me, not enough and or bad torch angle, it doesn't look like anodised to me, I haven’t come across anodised aluminium chequer plate, I will say this it quite often comes with an oily scum, and because of the Durbar it's difficult to rub with a rag that's got brake cleaner on it without leaving half the rag caught yo the plate

I have to agree

I buzzed up some ally tread for a guy at work a while back...

3mm treadplate... he cut it with a jigsaw, and had it pressed up.

I didn't wipe it.. brush it.. nothing...

No pulse.. 120 ish amps.. 2.4mm filler.. white tungsten..