The trick with tig brazing is not melt the base metal. I did a lot of this a my first job in a,sheet metal shop. We used silcon bronze as well. The color of your weld should be gold, if you are getting a dark crusty color your are to hot. I really like silcon bronze cause you can travel extremely fa...

Tig like mig is really easy. At my shop we mostly do turn table style welding. Most of the guys leave the the rod in the puddle and feed fast using a small rod, most of their welds ends up looking like mig welds. Personally I hate that look so I dip everything but you can do it dipping as well. Some...

I have done some mig brazing as well as tig brazing. We used silcone bronze for both. Tig brazing works really good, not as much of a fan of the mig brazing. It was very hard to get your setting set in right. We used the mig brazing when we were building some big table for Verizon wireless. Used we ...

Is it a magnesium or aluminum casting? Best way to check is to use vinegar. Magnesium will react when in contact with vinegar and aluminum won't. If it's mag you most common filler is az92 but there are others, best thing is to find exact make of the mag but 9 times out of 10 AZ 92 will work. With m...

I was playing around last night and it wasn't actually that bad. I don't have a leak tester to see if I am leaving a pin hole but I think I am good the pulling up trick works good. You are definitely the right Guy for the job you are on a lot and give good advice. I hope I get this job and get back ...

K thanks Otto Congrats on being a moderator BTW. I don't think they walk the cup to many pipes in the way from the pics my buddy sent me.

Hey guys so I have potential job interview coming up. A old timer that I used to work with at a previous job put in a good word for me at his new job and I am going to do a walk through of the shop next week. It is building big dairy tanks and piping systems, not what I want to do but there no alumi...

All the stuff you mentioned that you guys weld is thick heavy stuff and can be done without a foot pedal. The place were a foot pedal shines is on smaller thinner parts especially on thin stainless and aluminum. That stuff can be done without a foot pedal but a foot pedal makes a huge difference on ...

I agree with Otto you need to loose the backing. Could you use a solvent to eat the glue away so you can remove the heat blanket and then re adhere it to the tub after you are done making the repair? I would go with the 316 l for safety. You don't want to use 308 on 316 cause your weld will now have...

It depends what kind of stainless you are working with. You need to know that. If its 304 you can use 308 if its 316 you need to use 316l. And make sure to purge it and no undercut. All the medical stuff I have done has been with 316.

It depends on what you are trying to achieve. I have never used aluminum bronze on AC but I have silcon bronze on DC and it works great. Another options would be to use a nickle rod nickle 99, brute, and iconell 82 work very well. Those options work very well but are not the best on strength. If you...

A good way to tell if your a using 5356 or other 5000 or 6000 series rods and not 4043 or other 4000 series rods is a drop test. Just drop the rod if it sounds like a stainless rod you are using a 5000 or6000 series rod. If it has a dull sound than you have a 4000 series. You can also tell when weld...

That's awesome who cares what it looks, as long as it works. Ya it sucks doing a roll cage in the with a foot pedal. A torch mounted control works a lot better even they feel really weird if aren't used to it.

For mild steel you are fine sand blasting it, just wipe it down good after. If this was for critical application, I would not recommend this but for normal stuff you are fine. I would not do this on aluminum. I have never welded sand blasted aluminum but I would think it could get stuck in the alumi...

Another thing you can do is to put a small preheat on the material. Most alloys of aluminum will alloow a preheat of around 200 to 250, becareful cause some alloys you can't preheat. Most of the common alloys will allow it. This will help you not Max the machine out as well. It can be done in a oven...

In my experience with air cooled torches with the stubby gas lens I have not noticed any difference other than I junked a few collets from the heat. I don't have a lot of experience with air cooled torches I prefer water cooled, which is what I have at my home shop and real job. My buddyhas a air co...

I suffered the same thing at my passed two shop, the country stations in Minnesota suck. I ended up buying a cheap mp3 and listened to that. I say cheap because they don't hold up long when the are welding all day, the high frequently takes it toll LOL, same with phones. But at my new shop we are no...

Yep I hate sand pockets, can make a nice looking weld in scrap in no time LOL

I will just run them like I did yesterday. Looks the same as previous flanges just a little less amps. I wanted to try to wait to do them to see if I could bug the lead Guy to try one but they are already behind cause of the design change and they take a long time. 24 inches of weld each pass and th...

Wow. That is terrible. This weld I am doing is not a open root pipe weld. It is a fillet. Its a 7 inch thick by 40 inch flange and then I weld in a 24 in hub to the flange. But that does make me feel better. I remember you posting that picture a while ago.

It just makes me nervous because these are h igh pressure flanges up to 10 000 psi. I showed the engineer he said as long as I am meeting the weld specs I am fine but part of that is the pen. And it sucks because I have two more orders to do tomorrow. But the ones I did with my old setting were were...

OK that's what I was kinda thinking. It sucks cause the company is so big our cast stuff comes from like India, Thailand it was already crap guess things just got tougher. So my next question is this. How will this affect the penetration. I know common sense says 40 amps less will result in less pen...

Hey so I have question for you guys. This week at work they changed a flange design and switched to a different casting company. But these new flanges do not act like 316 l at all, it acts a lot like hastelloy. So after welding up a few I brought it up to a welding engineer at my work and told him t...

Hey Jody I think it would be cool if you did a video or two on rigging some odd ball materials like hastelloy b, c26, tantellum, magnesium stuff like that.

Another awesome job! Awesome work Jeff.