So far the hammered/flattened wire is working well. I also have production rectangular wire as well as ribbon. My understanding is that cold forging the wire changes it's properties in a positive way. It's definitely more dense. Not exactly sure what that's supposed to do in the vaping arena. It doesn't spit back and it's staying clean even using Boba's. I didn't see any big change in resistance (assuming similar size/number of wraps). I guess its just another relatively useless bit of info to rattle around in my head.....
Charles
Cold Working many/most Metal Alloys tends to make them Harder. But with Hardness come Brittleness.
It's like when you go to Bend the Copper Tubing for your Frig's Ice Maker. You can Only Bend it Twice. But if you bend it a 3rd Time, it will Break.
But if you Heat the Bend with a Torch and let it Air Cool, you can Bend it Again (Twice) without it breaking. This is a Good Example of Work Hardening and then Annealing.
A Cold Rolled Rectangular Wire (non-Annealed) could/can exhibited the same thing. Harder that Hot Drawn Wire. But More Brittle.
Would any of it Make the Hit you get any Different? I dunno. Probably Not. But a More Brittle Wire would probably be Harder to Wrap.
BTW - If you Dry Burned a Round Wire which was Hammered Flat, whatever Changes to Hardness/Brittleness would probably completely revert back (or perhaps even Less Hardness/Brittleness) to the Round Wire sate.
Because the Dry Burn / Air Cool is essentially Fully Annealing the Coil.
