Chassis welding questions and thoughts.

[Stormin2u]

Yup, your right on the time mid 80's I was running for BoB Rule at Bolink in those days with Nub Kopiska. Nub moved to Florida a couple of years ago.
I spent 10 years racing Go karts then I got to old LOL.
Good to hear you again. Norm

 

[hellbentrodder]

I am a professional welder and a trick I use when tiging mild steel is to use stainless filler rod. I would stay away from brake line due to the fact that the galvanizing is gonna give a crappy looking weld no matter what process you use. You can get clean tubing from places like McMaster Carr.

 

[Bob-Stormer]

I am a professional welder and a trick I use when tiging mild steel is to use stainless filler rod. I would stay away from brake line due to the fact that the galvanizing is gonna give a crappy looking weld no matter what process you use. You can get clean tubing from places like McMaster Carr.

How cool is that, that's about the only place I was able to find small tubing as well. I can't help myself when I get on their site... Gotta be worse than being addicted to Crack. <no offense to any crack-heads on the forum> :wink:

I'll try some stainless rod on the music wire. I bet that's the ticket.

 

[hellbentrodder]

Is your piano wire tempered? If so not a good idea. Hardened wire will break at the transition of the heat affected zone.

 

[Bob-Stormer]

Is your piano wire tempered? If so not a good idea. Hardened wire will break at the transition of the heat affected zone.

I believe that it is. I've never tried a stress test with TIG or braze joint. But I have smashed a few slot dragcars (accidentally) into the shut down wall at between 60-70mph actual speed, and taco'd the whole chassis, but never broken a joint loose or cracked anything. But that's different temperatures.

I can see it likely creating a weak spot, that whole area where the joint is TIG'd is pretty much molten, or right on the very edge of completely dripping right out.

 

[Mad4Rnr]

I use SS 304 tubing from McMaster, p/n: 89895K43

I braze it with silver solder McMaster p/n: 7874A4 and flux p/n: 7693A1

I use a propane tourch and it works nice. I'm thinking about trying my Mig but don't feel like changing the set up since I currently have it dialed for mild steel for my 1:1.

The stainless is a bit pricey but super strong and no worries about the galvinized sickness.

 

[hellbentrodder]

Hey Mad. I weld for Donal in Petaluma and have a tig at my home, if you wanna try and tig one of your 304 chassis pm me and I can give ya some pointers.

 

[Unimoger]

Is this the Bob Stormer of Stormer Hobbies?

The one and only"thumbsup" and another MONTANA crawler"thumbsup"

 

[noRCal]

you guys act like your gonna die if you weld galvy. I weld galvanized duct from time to time at work and sometimes for weeks on end. Im used to the smoke and you learn to stay out of it, the on part that absolutly sucks about it, is the fawking dingle berries shotting off and burning you in any position.