So I want an induction heater to braze some aluminium with these 'magic' welding rods I got the other day. Basically the story goes like this. I buy some welding rods that are supposed to weld aluminium at 380 degrees C through a chemical reaction I think raising the temp further to 600 odd where you apply the welding rod. And it works fantastically on small bits of aluminium it's far stronger than the aluminium itself the problem is I want to weld bits of aluminium 10mm thick and 80mm wide up to 100mm long and I under estimated how long it would tak to heat with a blow torch, well in my cold shed it just dosen't get up to 380C. So I was watching some youtube vids and this guy made an induction heater and was near melting steel, I followed a link he provided to build a 2KW one with water-cooling resonant RLC circuits with 400V caps and such but I don't want all that to heat up a little bit of alu. I also saw a little heater pulling 3A at 24V getting steel cherry red so I was thinking could I just make a signal gen at a fair frequency of 50-60KHz run it through an audio amp like the pass labs F5 which has great HF response and capable of driving 1ohm loads at 10A! Then just hook that up to my coil? I should get about 100W or so? Which is all I need. I end up with a coil with a big ass field generated around it at 50KHz why do I need anything else? I only want to pre heat the alu to get the heat inside it then use the torch to do the welding.
So if have got this far thanks for reading and do you think this will work?
So if have got this far thanks for reading and do you think this will work?