Harry O
03-05-2008, 09:04 AM
Not lead --- Aluminum.
I inherited a South Bend lathe and a light duty Walker-Turner mill (a heavy duty drill press with an x-y table) a while back. I decided to find some aluminum to learn (or practice) on. Most of the crap I ran across was from siding or pot-metal-aluminum from window frames. It was not worth bothering with.
Then I came across some high-quality scrap aluminum that a guy agreed to let me buy. I was only planning to buy 20 to 30 lbs, but once I dived into a 45' x 8' x 8' bin of scrap aluminum, I ended up with 90 lbs of the stuff. Various 6061-T6 plates from 0.135" to 1/2" thick. Some 6061-T6 pipe (1-1/2" to 6" OD) and a round (1-1/2" OD). And some channel and L-shaped 6061-T4 extrusions. All of it was originally certified. All of it was from a tank-trailer manufacturer (formerly Fruehauf).
Even better, it only cost $60. That is less than some people are charging for lead now. Anyway, last night, I hacksawed a piece off of one of the plates and practiced milling the edges until it was square. Next, trying partial depth milling of a piece to reduce some of the thickness.
I inherited a South Bend lathe and a light duty Walker-Turner mill (a heavy duty drill press with an x-y table) a while back. I decided to find some aluminum to learn (or practice) on. Most of the crap I ran across was from siding or pot-metal-aluminum from window frames. It was not worth bothering with.
Then I came across some high-quality scrap aluminum that a guy agreed to let me buy. I was only planning to buy 20 to 30 lbs, but once I dived into a 45' x 8' x 8' bin of scrap aluminum, I ended up with 90 lbs of the stuff. Various 6061-T6 plates from 0.135" to 1/2" thick. Some 6061-T6 pipe (1-1/2" to 6" OD) and a round (1-1/2" OD). And some channel and L-shaped 6061-T4 extrusions. All of it was originally certified. All of it was from a tank-trailer manufacturer (formerly Fruehauf).
Even better, it only cost $60. That is less than some people are charging for lead now. Anyway, last night, I hacksawed a piece off of one of the plates and practiced milling the edges until it was square. Next, trying partial depth milling of a piece to reduce some of the thickness.