You posted that on critical vessel or pressure applications MIG isn't an approved procedure. It is with ASME or NACE. If the powers that be dictate MIG at any point in the weld, so shall it be. Stick and TIG are often used for root passes either because it is easier, or the fact more people are qualified for those processes. I'd argue the short circuit being approved for root passes, but we may not agree on the terminology. I don't recall off-hand the amperage cut-offs between short circuit and globular. Pulsed and spray are both good for ASME and NACE.
I enjoy giving TIG welders a hard time, and it's mostly tongue in cheek. A cry aby is a cry baby, and it afflicts all processes, trades, races,genders, and so on. I've heard more than one TIG hand claim to be faster and better than an orbital machine, but have yet to see that.
I do know one thing for certain. ASME has removed any fun I have ever experienced with welding. I like to weld, but that isn't enough, and I look forward to the day when I can walk away from the money and just do something I enjoy.
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Today's Featured Article - Hydraulics - Cylinder Anatomy - by Curtis von Fange. Let’s make one more addition to our series on hydraulics. I’ve noticed a few questions in the comment section that could pertain to hydraulic cylinders so I thought we could take a short look at this real workhorse of the circuit. Cylinders are the reason for the hydraulic circuit. They take the fluid power delivered from the pump and magically change it into mechanical power. There are many types of cylinders that one might run across on a farm scenario. Each one could take a chapter in
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