u/B4got

I am buying a new welding machine to weld aluminum stock 1/4"x 1/4" to create a frame for an exterior window, this is a prototype,for about $100 there are many of this in Amazon but when searching, like what type of machine, I am a total newbie, no experience but I work with tools, I also would need a mask.

I should point out, it must work with a regular 120V outlets.

There are many choice in Amazons and some of those machines are multipurpose, while I dont mind, my goal is for Aluminum.