I think you are a good teacher. You do a good job explaining things. Too often teachers get caught up in the industry nomenclature and don't explain what things are, what things mean and how they relate to each other. I am someone who is interested in learning to weld but have only laid a single splattered bead with a stick welder 30 years ago in Jr. High School. If I were to get serious about it I would like to learn from you. Nice job.

I like it a lot when a credible guy from a welder manufacturer explains things. The other KZfaq teachers out there are ok and say similar things, but it's better to drink water directly from the well with such a tricky topic. Nice work, please keep doing these.

Good little Video. I just Welded 2 Cast Iron doors on a Furnace . Been Welding since the early 70s. I always use a air power needle gun. The old guys that told me said it helped to stretch the metal better than a hammer. I'm sure both ways are right. Read the mag. from cover to cover. Still working and welding and still really enjoy it.

Some of the great issues in welding are being addressed here! Welding cast iron seems like a problem for generations, and also the use of preheat, which nobody wants to do. I've watched a few hundred welding videos and maybe four of them involved preheat! Seems cheap and easy and solves a lot of problems apparently. I'm getting a definite impression that any weld is a good weld on cast iron if it doesn't crack. If it looks scarred that might be just fine, who wants to grind off such expensive welding metal anyway? Gives the thing some character.

outstanding! had serious doubts you could pull this off with that much porosity in the parent material and with cast being very specific with how you deal with it but the end result was beautifully done

Good explanation as to why a 7018 weld is likely to crack with castiron

That is a beautiful weld, more so because of the difficulty.

Wow thanks for the instruction. I really must try this with my powerarc

Nice video! Thank you for your time and sharing your experience.

I guess I am just lucky. I welded a cast iron post puller and it came out stronger than the original.

Love to see a dye penetrant test on this !!

One of the trickier materials to weld --- options are limited (SMAW w/ nickel ($$$$), Oxy/A brazing ($))..........................

Are you allowed to grind the weld flush or does it have to stay that way for strength? What if it must be ground down for clearance?

Great video, thanks

What happens if you run it hotter than about 900 F ?

Awesome info .

I’m blind