This is an aluminum project I just finished up. It will be part of a movie prop that will go inside an animatronic lion, to be used in a Bollywood movie. For never having welded an aluminum joint before, I think it went okay. I had more issues drilling the holes than I did with the welding portion. Everything is all 1/8" wall so that worked in my favor too. I was shooting 150-160 amps, 20CFH of argon, 3/32 tungsten in a water-cooled torch with 6 seconds of post-flow. I can see aluminum getting pretty fun with some practice; puddle is so easy to see, like watching a big screen tv.

Good afternoon, TWM crew! I started working on our TWM Handbook, as promised! This will be an evolving and growing digital document as time goes on- I will continue to add as I see fit. Please give me feedback as well- if you would like specific information added, I will try to do so! I will email the document to you guys as well! -Kully

Lap joint settings , equipment, & strategy. -When welding laps, I prefer standing the part vertically with the shelf (Larger Tube) on the bottom. It allows you to come around the tube and stack the weld with the shelf acting as the floor. -After trying it various ways- I found this is the best strategy for the most consistent, lap weld. -I will evenly space tacks so that all of my start and stop points have equal length and heat rings. -Generally, I will use a max peddle strategy to keep the puddle consistent in size. Settings / Equipment 1) 36-38 AMPs 2) 1.2 seconds pre flow 3) 12 seconds post flow 4) 5-10 CFH purge 5) #16 welding cup 6) 30 CFH through cup 7) 0.035" SuperMissle Filler 8) Count for consistent cadence. Enjoy! **Will be adding lap joiny specific content in the TWM course soon!**

Good Morning! I recently attended GNRS with the Martin Indy Roadster Team- I wanted to share a few photos and insight on the state of this project. This is a one-off project that I am doing a lot of CAD Design and fabrication work on. It's not often you get the opportunity to design a project from the ground up with...lets say... zero limitation. So, I am grateful for the opportunity! The car was received in an extremely positive way. I am humbled at responsibility I've been given- and the great team I'm working with! A few details regarding the project: - Fully CAD modeled Indy Roadster - 4130 Chromoly tube chassis - Proprietary, torsion-bar suspension design - CNC machined suspension components - Proprietary CAD Modeled / CNC machined differential - 1960's Drank Offenhauser engine (Supercharged) Will keep you posted on Martin Roadster Updates.. -Kully

Chromoly is a commonly used alloy in the high-end fabrication world. You will see it most frequently applied in chassis or structural environments. The alloy is very strong, and can endure a workload overtime without tempering or changing molecularly. Now, as any material- there is a shelf life- in the motorsports world you will find that chassis will "relax" over time- losing some of its stiffness. As far as weldability, this is my setup- generically speaking. Susceptible to change depending on material thickness, or weld joint. - #14 Weld Cup - 30 CFH Argon - 1.2 Pre-Flow - 12 Post Flow - 3/32" 2% Ceriated Tungsten - 1/16" ER70 or ER80 Filler - 4 Rips per Joint (Connect Tacks at 90 degree Increments)