GTAW is a slow process and not typically used in high-production manufacturing, it is often a good choice in aluminum welding applications where productivity isn’t as important as quality and appearance.
During aluminum welding with the gas metal arc welding (GMAW) process, filler metal is fed into the puddle as soon as the welder squeezes the gun trigger. These “cold starts” can result in lack of fusion and insufficient penetration.
With GTAW, you control when the filler metal is added and are able to establish the puddle and ensure proper penetration before adding filler metal. Keep in mind that having more control over this variable adds another layer of complexity and operator skill compared to other processes such as GMAW.
So my brother in law works for Chick-fil-A and asked if I could fix this. Spent some of the weekend working on this and finishing it up. TIG’d some 1/2” aluminum together, drilled and tapped a hole to put a 5/8” bolt in it as a pin for the new hinge. Although this was cast aluminum I was impressed how well it went. My little TIG welder had a heck of a time heating everything up to get it to burn right. Of course I forgot to bring a torch from work to preheat 😅 Still not too bad considering this is something like only my 5-6 time ever TIG welding.
My view from the floor the other day. Overhead aluminum tig welding on my back. 1” pipe with a wall thickness.093 to 3/8” thick wall 10-3/4” pipe. Two passes on each piece. 30’ feet long of 10” pipe. My neck hates this part. #aluminumtigwelding . 2nd pic is inside the 10” pipe showing a backing ring at the seam. One piece 20’ and one 10’ =30’
The straight arm challenge a Welder Style. Big Thank again to my fellow welders for taking this Video along with other ones, See the Whole Video on my IGTV,
Good luck to everyone! .