You want someone to weld up roll marks on an ALUMINUM receiver? Give your head a shake man! That's not gonna happen EVER!
Beyond the metallurgical reasons nobody is going to do that work, it may be illegal to remove manufacturing marks from a firearm receiver.
"NO", I never sad "I wanted someone to weld up roll marks on an ALUMINUM receiver" Where do I say that in my post! Instead of bashing someone, why don't you read carefully, and try and help them in a positive way!
l was asking for help with finding a local Gunsmith/Welder for some custom work, so I only "briefly" explained what work I want done. I "NEVER" said anything about welding a receiver and or illegally removing the manufacture roll marks that can't be removed legally.
I said I wanted some "original Roll Marks filled in", but filled in with what? well I don't know, that's why I wanted to speak with a professional Gunsmith/Welder to see what options I have based on the issues with welding aluminum rifle receiver. I know all about the issues with welding aluminum, especially a rifle receiver.
The term "Gunsmith/Welder" was used in my post because some melting of metal may be required to pour into the small roll marks that I want removed, so an experienced gunsmith who has welding experience was what I was looking for, someone who could tell me "What Can" and "Can Not" be done, only after I fully explain what it is that I want have done.
The vast majority of gunsmiths have some CNC machinist training so I felt it was not necessary to include that I'm looking for a machinist as the term gunsmith should have suffice.
If you most know, the CFO is fully aware of my intent. After discussions with the CFO & the CFO technician for technical decisions, I was told it was "100% legal" to do what I have planed for my lower, No problems!