Probably a stupid question, but this bothers me.
Normally, I ground the workpiece and attack it with the electrode. So normal = reverse?
(Let's ignore the fact that I only have an AC welder for a second...)
It just seems like one would logically think that the workpiece would "normally" be grounded, not hot, and the active part you are using would be the hot part. So calling the reverse of that "reverse" doesn't make much sense to me.
Anyway, I guess I could live be being told that it's just that way, but I just read something else...
I just read that the reason Reverse Polarity means a hot electrode is because electrons flow from the ground to (+). This is what actually bothers me:
No other engineering discipline in the world uses that convention. We all know it's true, but EVERY SINGLE OTHER FIELD uses a system that follows "hole flow". Even electrical schematics indicate diodes with arrows indicating the flow of positive current. Please, someone tell me that the weldors didn't decide to just be different from everyone else. Please tell me that there is no real reason behind the Reverse designation. Or maybe the first welding machines only did Straight polarity, and so they later designated EP as reverse. But please don't tell me that unlike every other mechanical or physics field, they decided to base welding on the direction of electrons.