Which TIG wire should I use for 6061 AL

thick to thin, always fun. 4043 for a filler, if the part is going to be anodized then 5356

Preheating the 1/2" plate is advisable.

Richard

Thanks for the reply

Would silver soldering be a better solution to welding. Or perhaps silversoldering with a bead of weld every 90 degrees?

Your thoughts?

Thank You John Roncallo

Have no experience doing this myself, and not knowing what the application of your part is...see link

"jroncallo roncallo @snet.net>" >

If you can't get enough heat from your machine you try switching to helium or DCEP process. DCEP requires the largest tungsten you can fit in your torch, thoriated hold up better than pure. Remove oxide layer mechanically. My less than 2 cents worth.