Yeah, that`s right. A magic purge boxahh I see where your coming from now , so do you use a purge box or something else ? sorry for all the questions just like to know how things are done !
I was having a tidy up last Friday and found a pair of these chucked to one side.
Faaaaaaaaaaar too tempting to chuck out in one piece.
Bandsaw blades are child's play comparing to the knife edge of a Stanley.Band saw blade TIG joining comes in handy ????
1.2mm wall stainless
Can we have a breakdown of your skills , ie amps , purged or not , filler ?
Bandsaw blades are child's play comparing to the knife edge of a Stanley.
Angry birds socks.Come on then spill the beans give all the gory details please What sort of wave form , the current , volts gas ,type gas flow etc etc , what backing heat sink was used ...what socks were you wearing ?
I mean if I'm going to get anywhere good enough to join the 6 mm wide by 0 . 5 mm thick bandsaw blade stuff I purchased I have to have some clue as to where to start .
Well for a start leave the AC out of this.I tried to TIG the thin 5 x 0.5 mm thick bandsaw blade it melted into holes quicker than a snowball in hell .
After reading your posts , I understood that I might have to do it in several very quick newly cooled joins then grind things flat & temper it to get rid of the " HAZ "
It might be my difficulty with the Euro torch & the damaged hand for which I posted about.
Unfortunately I've not managed to get more time to have a replay this time using an aluminium or brass sheet heat sink .
I think I'm going to make a special blade clamp ,one that allows me to flip the clamp that surrounds the actual weld our of the way once it's been done but one that holds the blade in the same plane a few inches either side further on from both sides of the weld . So even if it is super brittle it won't be able to move till I've pinpoint annealed it & take it completely out the final clamp parts .
I've read you thread posts about welding the saw blades & enjoyed it tremendously .
Just how low a current & what settings for gas , cup size & tungsten did you use ?
Was it an AC frequency only weld or might I find eventual success with my multi mode welder when using it in DC TIG ?
sure!
Amps - usually around 38-40 id imagine, 48 set on the machine but rarely if ever go full pedal. no pulse
purge - always! if im welding on a simple bracket to a tube or something in a hard to reach area il go to Solarflux B, but always protect one way or the other.
filler - 1mm 316
i would normally have less colour than that, as we know all colour is oxygen contamination, but the customer wanted it like that, so! i normally achieve that by lifting the torch for a milli-second as the post flow is happening to get the colour i want
thats pretty much it, fupa 12 cup on a ck flex head, free hand, i dont own a positioner. cheers, anything else just shout
Well for a start leave the AC out of this.
DC only on ferrite metals.
My settings are 25-30 amps
Blade clamped tight down. Gas 6plm. 0.8 MM Mig wire. A18.
0.6 might be a bit small.There is obviously a specific reason for the 0.8 mm wire or is there ? I only have 0.6 mm wire at present .
Is it to get maximum metal transfer & move along the job quickly where as using thinner wire you'd be on the job longer & generate more heat thus increasing the likelihood of making holes in the weld ?