bluntening the point of a thoriated tungsten

[Monrovian]

I have recently read that i should be grinding a flat on the tip approx. .25 - .5mm of my thoriated for steel. Never new this. I wish someone had told me 10 years ago as i wasnt aware i could control the stability and pool width with this method. I have always ground to a sharp point. I usually use 1.6mm with a taper of about 4mm for say, 1.5mm steel sheet

Anyone tried this?

 

[fingers99]

In the Covell video he does this, but only for -- IIRC -- thicker stock than you're taking about, otherwise to a pointy point. He only puts a very small flat on the end.

The video is on the peer to peer networks as "TIG Welding Basics" -- I find it fun, but I doubt an old time TIGer like yourself would learn much from it.

 

[Monrovian]

an old time TIGer like yourself would learn much from it.

old timer - cheeky bastad im 37 years young

 

[fingers99]

I meant old time TIGer, no old timer. I can give you a few years, but not on the TIGing.

 

[Hitch]

Ive never ground a flat on it, but very rarely use a tig for steel. Will give it a go next time im on the TIG

 

[tigmann]

All DC tig work should be done with a pionted ground tungsten in order to
produce a controllable stabilised arc, only AC tig would require a blunted
electrode due to the tungsten being partially melted during welding.