Resistance soldering
 

Would anyone happen to know much about resistance soldering? Been thinking of buying one for a trailer build I have planned and not sure which unit to go with. The trailer will consist of a lot of 1/4'' brass square bar and not sure what wattages I should be considering to produce enough heat to properly solder the joints. I've searched google and everything that comes up is trying to sell me a unit or telling me how it works and no wattage to material size ratio.

I will continue my web search for info, just thought I'd ask around here. Hope to hear from some of the great minds on here and all input is appreciated. Thanks

Re: Resistance soldering
 

Ive been interested in one of these as well..id imagine you can always use more watts...
"The Mortar The Merrier"!

Re: Resistance soldering
 

1/4" bar or do you mean tube

Re: Resistance soldering
 

It would be solid bar stock

Re: Resistance soldering
 

I have one of the American Beauty light capacity tweezer-style units. It has a 250 Watt variable resistance power unit. I've been using it to solder handrails and masts for r/c boat models. Mostly 1/16" - 1/8" rod, or 1/4" - 3/16" tube. The nice thing is the tweezers can act as a clamp to help hold parts in place before and after making the solder joint. The heat tends to be localized at the electrodes, so you don't need a lot of secondary heat sinks around the joint.

Re: Resistance soldering
 

Thank you for the input. I've been looking at that brand of units, they seem to be the ones people prefer. I'll check that unit out. Thanks again