Hi,
I have DIY'd a spot welder (thanks to malectrics) that's working like a charm: I am spot welding 18650s with .15 pure nickel with a 3ms pulse and consistent holes in the strip when teared down. So everything is great except that when I try to spot weld the same nickel strips on top of each other I have to crank it up to 8ms. In my understanding I should be fine with the same pulse duration or even a lower one since the bottom layer is now more conductive. I am not worried too much as 8ms is still great, but the fact that I can't find anything about increasing pulse duration when spot welding nickel on nickel is aggravating my itch... Or maybe I am very bad at googling, there might be that...
Anyway if anyone had the same experience, or even an explanation, I would be glad to hear it.
Thanks
I have DIY'd a spot welder (thanks to malectrics) that's working like a charm: I am spot welding 18650s with .15 pure nickel with a 3ms pulse and consistent holes in the strip when teared down. So everything is great except that when I try to spot weld the same nickel strips on top of each other I have to crank it up to 8ms. In my understanding I should be fine with the same pulse duration or even a lower one since the bottom layer is now more conductive. I am not worried too much as 8ms is still great, but the fact that I can't find anything about increasing pulse duration when spot welding nickel on nickel is aggravating my itch... Or maybe I am very bad at googling, there might be that...
Anyway if anyone had the same experience, or even an explanation, I would be glad to hear it.
Thanks