More practice.....

Tue, 31 Aug 2021 15:25:45 GMT

go to see Welding Machine for More practice.....

plate, and then I welded a rectangular piece together, butt welded, it was about .13" thick.Also did the ss round tube, just messing around.3/32" thoriated, 12cfh argon. Attached ImagesHobart EZ-Tig newbie.
Reply:rest of the pics. The round tube was not butt welded, i ground some angle into 'em, and the term is totally avoiding my tongue right now. Attached ImagesLast edited by chimmike; 04-11-2012 at 09:22 PM.Hobart EZ-Tig newbie.
Reply:All the beads on flat plate look like they have issues at the toe of the weld. I'm going to say you were a bit cold on those. The ones on square tube are better. There they look just a bit too hot, and you need to work on your consistency. Some are wide, some narrow, some place look a bit hot, some cold, and in some place it looks like you are moving a bit fast.The round tube needs more filler, and you could probably back down on the heat a tad bit.Post up your amperage so we have an idea what you are set at, and roughly what you are running if using a pedal. IE, machine set at 150, using about 2/3rd pedal, would put you at about 100 amps or so..No government ever voluntarily reduces itself in size. Government programs, once launched, never disappear. Actually, a government bureau is the nearest thing to eternal life we'll ever see on this earth! Ronald Reagan
Reply:Machine set around 110, probably 75% of that on the plate, a little more on the square tube. I think I was a little hot on the plate, honestly, or could've used more tube.The round tube was beveled, that's the word I was looking for. And yeah, a 3/32" filler rod would've worked better I think?Using 1/16" filler rod, btw. Should probably pick up 3/32" rod?Hobart EZ-Tig newbie.
Reply:anyone else? Hard to learn this stuff sitting in the garage at night tinkering away, heh. No time for a welding class, no justification to take one as this is just a hobby.Hobart EZ-Tig newbie.
Reply:Originally Posted by chimmikeI think I was a little hot on the plate, honestly, or could've used more tube.The round tube was beveled, that's the word I was looking for. And yeah, a 3/32" filler rod would've worked better I think?Using 1/16" filler rod, btw. Should probably pick up 3/32" rod?
Reply:Thanks! I'm going to pick up some 3/32" carbon steel filler today. Yes, the square tube was a butt joint, the round tube was beveled.As for the welds on plate, yeah there's undercut on some of it and I think that's part of it, the filler is sometimes melting on the arc. I'm having a hard time picturing how the filler melts in the puddle and not the arc itself. I'm really watching the puddle, and on those welds I was trying to push the puddle forward, back a little bit, dip, and push forward again.Hobart EZ-Tig newbie.
Reply:Try this. Hold the filler rod down on the plate at a very shallow angle and keep it there, don't lift it. Then start a puddle about 1/2" in front of the filler and move the puddle towards the filler. When the puddle reaches the filler, the filler will melt. keep traveling along the plate towards the unmelted filler rod. If the filler is melting before you get there with the puddle, you have too much forward tilt on your torch. Make it more vertical and try again. This is usually referred to as the "lay wire" method. I use this with students that are starting out and having trouble getting each hand to move in a different pattern. In some cases if doing joints, you may have to "slide" the filler along the piece and into the puddle rather than simply "chase" it, to add more filler, or pull it back slightly as you move to add less filler.Once you get the idea of melting the filler with the puddle, then go back and try dabbing or "tapping" in filler if that's the way you want to do it..No government ever voluntarily reduces itself in size. Government programs, once launched, never disappear. Actually, a government bureau is the nearest thing to eternal life we'll ever see on this earth! Ronald Reagan
Reply:I've kinda been doing the lay wire method. I've been keeping the filler at as shallow an angle as my goofy hand will allow. I'm half tempted to switch hands, honestly. The one problem I've run across when keeping the tip of the fill rod on the material is it 'sticks' like it's hot, but not hot enough to melt until the puddle gets closer. DSW: Thank you for your responses and time! I'm sure it gets tiring answering noob questions constantly, and I know that it does.Hobart EZ-Tig newbie.