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A Tinners Porch
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Old 12-27-2005, 09:49 PM
Deuce Deuce is offline
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Default Welding

I am currently enrolled in a college level (seperate from any apprenticeship) intro to welding class. Once I pass this class I am open to take GMAW, GTAW, and various other welding disciplines. I am relativley new to the trade, and I'm wondering what type of welding goes on the most in a mechanical contractors sheet metal shop. We use heavy guage cold rolled steel, I-beams, galvanized and stainless sheet metal. We very rarely use aluminium or other non-ferrous metals. I'm just wondering what types of welding classes would I benefit from the most?
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Old 12-28-2005, 05:47 PM
AmickRacing AmickRacing is offline
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As far as the HVAC side of welding goes I might be able to give you some insight.

I also took a welding course after highschool, long before I got pulled into the HVAC trade.

Anyway, I've welded a lot of stainless steel duct (mostly 24/22 ga), about half mig and half tig. I've welded a TON of 16ga blk iron sheets into duct mostly for exhaust hoods or other types of grease duct.

Throw in the odd ball curb here and there, or curb adaptors, typically 22ga or thicker galv. You'll also end up making brackets either to hold duct, hold units or who knows what. That's mostly made from square tubing, angle iron or what ever else is laying around.


Now, aside from what I've done here's some more advice.... do as much as you can of every kind of welding they'll let you. Even if you know you'll likely never use it, it won't hurt to spend a day or 2 setting the machine's up and getting at least familiar with it. I was certified unlimited thickness for both MIG and stick in all positions. Imaging going from welding that stuff to sheetmetal... talk about a way different world. In hindsight the one thing I wish I would have known better and gotten certified in was pipe welding.
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