Re: Bach with sparks!
Yes.
If you TIG weld steel with DC polarity, it's pretty quiet.
To weld aluminium, you have to use AC polarity to get some scouring action to bolw oxide flakes off the weld-pool. Boy is it loud. My welder is essentially a 9kW function generator. I can swithc it between sine and square waveforms, slew the frequency from 20 to 200Hz and I can vary the mark space ratio. All very audible!
Tenners would melt anywhere near the business end. The argon costs a fair bit without burning banknotes.
David
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Can't afford the volcanic island yet, but the plans for my monorail and the goons' uniforms are done
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