I've got a lathe but no aluminum tig set up.View attachment 388265View attachment 388267
I have ALOT of 4047 if anyone wants to give it a try.
Tig settings
AC squarewave
150Hz
70%EN
.02 pre
5.0 post
125 amps max with pedal
3/32 2% lanthanated
Gas lens with #8 cup
This woulda been a helluva lot prettier if I had a lathe to chuck it in.
Could do some trading then.I've got a lathe but no aluminum tig set up.
Yep.Could do some trading then.
I would be interested in some 4047.........I have ALOT of 4047 if anyone wants to give it a try.
Tig settings
AC squarewave
150Hz
70%EN
.02 pre
5.0 post
125 amps max with pedal
3/32 2% lanthanated
Gas lens with #8 cup
The area around the dome didn't etch as much with the increased EN.I would be interested in some 4047.........
What difference did you see between 65 % and 70 %EN .......... You went with less cleaning action and deeper penetration.
Hard to see the pics on my phone, but did the pinholes and craters get better with the higher silicon content filler ?
You shouldn't try an aluminum stick rod on a piston. I have some. Useless stuff pretty much.When I was working in an electric motor re-barring shop, We had some sort of stick arc coated rods for welding aluminum.
You could run a bead with the electric welder or you could grab 3~4 of them and a oxy-acetylene with a rose bud tip and work them almost like a brazing rod.
I wish I could still recall the vendor or the alloy.
I would love to have a pack of them to try out on a piston dome
We were welding (braising?) a 4" wide by about 3/8" flat bar onto to the pad of a 10~11 pound slide hammer.
They worked too. The hammer was just a roughly 4 foot long rod with a hunk of round stock
about the size of a large soup can and we gave it hell when we trying to pull those bars out of a stack of laminated sheets.
I still have a funny looking fingernail from that job.
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