5e colin Posted May 1, 2016 Share Posted May 1, 2016 (edited) hey lads after having my tig for a few months now ( unused ) i am finally going to unwrap it and use it got some questions tho about tungsten / filler rod / and amps settings i am starting with sch40 mild steel steam pipe between 2.8mm and 3.2mm wall ( another manifold project ) so what size tungsten do i use ( mm ) also color of tungsten as i saw there's different colors and what amp settings to start with ??? Edited December 11, 2016 by 5e colin Quote Link to post Share on other sites
turbo Grant Posted May 1, 2016 Share Posted May 1, 2016 1.6mm red 100a see what happens Quote Link to post Share on other sites
5e colin Posted May 2, 2016 Author Share Posted May 2, 2016 cheers and the argon flow setting ?? how much Quote Link to post Share on other sites
aaddzz123 Posted May 2, 2016 Share Posted May 2, 2016 (edited) From what I remember I think around 15psi for tig welding? I could be completely wrong so don't hold me to that haha! Usually you'll know if the gas is too low or high if it spits or bubbles. Remember to bevel the ends of your joints to make sure there's a nice area to sit the weld in ! Also the main problem I had with welding mild with tig was due to contamination. With mig you can pretty much go over anything and it'll be alright. Tig needs to be clean. Make sure you key all the areas you're welding and give them a wipe off with panel wipe too. Edited May 2, 2016 by aaddzz123 Quote Link to post Share on other sites
aaddzz123 Posted May 2, 2016 Share Posted May 2, 2016 Also to mention your gas flow will vary with what size cup you use. My best results have been with a bigger cup. Quote Link to post Share on other sites
Stu Posted May 17, 2016 Share Posted May 17, 2016 (edited) 1.6mm Thoriated (Red) tungstens are what I tend to use when making manifolds (mild steel, sch40) and i tend to use a number 5 nozzle with a gas lens. Its gives much more even gas dispersion and I can wind the flow rate right down and still create really nice welds. Like this basically: With aluminium I tend to set the flow rate at 10-15lt/m dependant on the type of job/position being used. I made up some ali fuel tanks for a launch a month or so back and got it pretty dialled in using again a number 5 nozzle and gas lense but with a 2.4mm Zirconiated (White) tungstens. Can't stress enough that preparation and cleanliness are key to a good weld. Good luck! Edited May 17, 2016 by Stu Quote Link to post Share on other sites
5e colin Posted May 17, 2016 Author Share Posted May 17, 2016 DAMM stu nice welding thanks for the info will look into the gas lens i dont even know what size my nozzle is as its not printed on it ha ha Quote Link to post Share on other sites
Stu Posted May 17, 2016 Share Posted May 17, 2016 Thanks! My machines are pretty dialled now which helps. Some people hate the gas lens nozzles for some reason but I get good results. I've been using a long neck version for manifolds lately, bit tricky for tight stuff but does most of a manifold without any issue. Will take a photo when I'm home Quote Link to post Share on other sites
5e colin Posted May 17, 2016 Author Share Posted May 17, 2016 sweet thanks gives me some ideas might aswell try it first time and get used to it Quote Link to post Share on other sites
Stu Posted May 17, 2016 Share Posted May 17, 2016 All good mate, any time, happy to help Quote Link to post Share on other sites
Stu Posted May 17, 2016 Share Posted May 17, 2016 Found an image of the nozzle im using - #5 of the long neck versions Quote Link to post Share on other sites
5e colin Posted July 26, 2016 Author Share Posted July 26, 2016 so was practicing a few days now and again sinds may and im getting there must say prefer this over mig welding it deffo has its advantages going to practice on ss ofcuts now type unknown so what the name of the universal ss tig rods i have to use for that ???? Quote Link to post Share on other sites
gazza g Posted July 26, 2016 Share Posted July 26, 2016 Your okay using the red tipped tungsten with s/s Quote Link to post Share on other sites
5e colin Posted November 19, 2016 Author Share Posted November 19, 2016 ok lads smal update only tigged a couple times so no great progress will get some pics after bit more practice as its not pretty yet ha ha question what type of filler rod for welding ss to mild steel ?? pipe is 304 i think and flanges normal ms Quote Link to post Share on other sites
ashep91 Posted November 19, 2016 Share Posted November 19, 2016 This is pretty cool i am looking to start welding for fixing little things on my starlet if anyone knows of a beginners kit? Quote Link to post Share on other sites
5e colin Posted November 29, 2016 Author Share Posted November 29, 2016 So tried the 1mm filler rod ss and 1,6mm red tungsten my God it's horrible to tig I can't seem to get my pool steady L joint got the tig at 80/100A. With the ms 1.6 filler I can control the pool much better so if I use 2.4 filler would it be even easier???? Quote Link to post Share on other sites
5e colin Posted December 11, 2016 Author Share Posted December 11, 2016 (edited) now after al the messing and trying today was the 1st time i thought i weld 2 exhaust tubes together as i use them for my turbo kit boost pipe to the oem topmount ( for now ) honnestly i am very happy with it as the practice tig welds where al on flatbar and on mild steel this ss stuff welds totally diferent dont ask me how it just is im not experienced enough to say why i forgotten to take pics when i was actually doing it ( sorry to exited ) but took 1 from it on the pipe put back on the topmount setup i know its not the prettiest but i tested it for leaks and its not leaking so good start ha ha was at 60A + - as my yoke is not digital 1.6mm red tungsten and no filler on most just on the back where i got a little hole i dipped some filler in to save my 1st work ha ha now i touch puddle ruffly every 20 seconds was every 3 seconds when i started so progress indeedto me it seens using bigger tungsten and filler rod is easioer to weld ( for me ) let the pro welders say something on current speed etc as i am still green behind the ears with this cheers Edited December 11, 2016 by 5e colin Quote Link to post Share on other sites
5e colin Posted December 11, 2016 Author Share Posted December 11, 2016 (edited) fuck me seeeeeeems like i am holding the torch wrong !!! i hold it at the stem where the hose connects the section of bar going to the front ( ass my trigger switch is cabletied on to it ) look at this fucker holding it haaa !!! Edited December 11, 2016 by 5e colin Quote Link to post Share on other sites
SpikeyJp_68 Posted December 11, 2016 Share Posted December 11, 2016 I've never tigged before but that looks pretty damn good for one of your first attempts Quote Link to post Share on other sites
5e colin Posted December 12, 2016 Author Share Posted December 12, 2016 1st attempt on ss indeed going to order a footpedal now and try holding the torch like the pic above also some welding gloves ha ha as i burned my thumb many times ] i also did non of that back purging crap and al that as its not worth it yet as im only starting to Quote Link to post Share on other sites
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