prepman
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Might have a salient point there.I have one of the cheep stubby lens kits, one thing I notice is that the torch seems to get a lot hotter than with a standard sized gas lens.
Stu
Might have a salient point there.I have one of the cheep stubby lens kits, one thing I notice is that the torch seems to get a lot hotter than with a standard sized gas lens.
Stu
Gas lenses seems to have unexpected benefits..certainly purge gas economy.Might try one at some point for going into corners etc, I've recently switched back to a gas lenz on aluminium at home for some reason a standard cup was messing with the tungsten tip, not discolouration, just not balling right
Little trick of the trade coming here …. Pull your tungsten further out especially on joints where it’s tight (like corners)I did a tiny tig weld and looking through the cup was the only way. The gas lense is the other part of the equation which I also didn't have before.
There are different styles of pyrex cups available. For my purposes I wouldn't go back to alumina.
Addendum I'm not a good TIG welder.
You don't even need a gas lense in that situation I've found over the years. But don't get the gas economy. Also providing you have side view a pyrex isn't a great boon.Little trick of the trade coming here …. Pull your tungsten further out especially on joints where it’s tight (like corners)
You’ll be very surprised at what you can actually get away with when using a gas lens.
The worst joints for being able to actually see what’s going on are the best joints for allowing you to extend that tungsten right out so you can keep the cup from blocking your view.
Where’s the gas gonna go on a joint like that? Exactly where you want it
20mm is even achievable on the right joint with a well set flow rate and decent lens
View attachment 347203 View attachment 347204
What flow rate are you using in each case?I've noticed no difference in saving gas between standard and gas lens,
I think to a lot of users they are more an image thing than actually any real benefit over a quid a piece standard pink cup.
Maybe some people can see and weld through them but I can’t bloody do it as it’s just a horribly distorted view
Hideously expensive if you buy the real welding ones and I’ve had them in the past and used them for their actual intended purposes on the very rare occasion I had something that would lend itself to them.
It’s very fashionable in the states to have a big clear tig cup, have a nick name like “Tdawg” and wear a Tee shirt with “my other ride is yer mom” on the back
Normally my lpm matches the size of the cup or a little more tungsten stickout also affects how much gas is needed, if using a #5 etc I use around 5lpm I've had it down to 4lpm for a #5 but it's risking spots with not enough gas coverage for the sake of saving a little gas, all on aluminium, gas lens makes more sense for stainless etc on aluminium gas lens or collet body gas flow I use the sameWhat flow rate are you using in each case?
Same here, no7 or 8 gas lense on a 17 air cooled torch (water cooler is on my want list)What were you using before these, and what size cups?
I'm on a no7 standard wp20 gas lens for nearly everything, i tried those but I didn't like the O ring seal, and they don't like lots of AC heat. So decided to stay with alumina screw on cups.
I found that those bigger cups liked more gas, though. Just my experience.