[MXDANO]

Hi, I work for an architectural metal shop and lately they have been taking on a lot of bronze jobs. I use a Miller Dynasty on DCEN with a max of 200 amps, air-cooled torch, foot pedal, 3/32" 2% sharpened thoriated tungsten, silicon bronze filler rods. On less than 1/4" base material I do pretty good. 1/4" I had to preheat with a torch until it discolored to get it to flow. Then I got a job to weld a 1/4" channel between 2- 3/4" plates. It seems like I just cant get it hot enough, even with preheating. I finally got enough around it to be strong enough, but it was not pretty. Any tips would be appreciated, should I set it up with 1/8" tungsten? Machine just not big enough? THANKS

[Rick_H]

More amps.... so if you are stuck with that size machine you need more preheat, good rose bud and acetylene should do that in short order.

[MXDANO]

Thanks Rick, just did another bronze job, 1/2" plate. preheated pretty hot then got right to it and it flowed much better.
The boss said there is a job coming up that is a 3' squares of 2" thick bronze plate that needs 1/2" plate welded to them. Going to be some sort of high dollar table. We'll see how that goes !!

[LtBadd]

Thanks Rick, just did another bronze job, 1/2" plate. preheated pretty hot then got right to it and it flowed much better.
The boss said there is a job coming up that is a 3' squares of 2" thick bronze plate that needs 1/2" plate welded to them. Going to be some sort of high dollar table. We'll see how that goes !!

Sounds like good stuff, post some pics if you can, thanks

[Rick_H]

Wow, never done anything that thick, definitely post some pics if you can!