I don't know about all the other questions but the heat will happen wherever the highest resistance is. So if the copper wires have sufficient gauge one might expect the bolt would heat up. One would have to compare feet of copper to inches of steel to determine where the load will be. As to damage it would depend on how well it is protected from over current. I don't think I would try it.
On Tue, Jul 20, 2021 at 2:41 PM Bill Coleman via CnC-List < cnc-list@cnc-list.com> wrote: > I have a Broken ¼ - 20 broken carriage bolt with around 2 threads showing > out my transom. > > 1 ½” is embedded in epoxy. An easy-out seems unlikely. I did four, three > of them unscrewed successfully, but apparently I didn’t coat this one > thoroughly enough with the Vaseline. > > > > I am thinking that if I can heat the bolt up to around 300 degrees or so, > it will break the bond with the epoxy. A soldering iron seems **maybe** > possible, but that is only one side. I was wondering if I could heat it up, > like plumbers do with welders to melt frozen water lines, it might be an > option. > > But I don’t understand enough about electrical resistance to know how to > go about it. Using a battery for juice seems risky, having seen what > happens when I have shorted them out with a wrench – > > I do have a 30 amp adjustable Powerwerks power supply, which seems a > little safer. > > What I don’t understand, is if I can put a positive on one end of the > bolt, and negative on the other, will it heat the bolt, or will it just > melt the insulation off the wires? Or ruin the power supply? Or is it a > factor of the gauge of the wires? > > > > Bill Coleman > > Entrada, Erie, PA > > > > > Thanks to all of the subscribers that contributed to the list to help with > the costs involved. If you want to show your support to the list - use > PayPal to send contribution -- https://www.paypal.me/stumurray Thanks > - Stu
Thanks to all of the subscribers that contributed to the list to help with the costs involved. If you want to show your support to the list - use PayPal to send contribution -- https://www.paypal.me/stumurray Thanks - Stu
