I've been installing a lot of shower enclosures lately and getting sick of
using a Hack Saw to cut Aluminum. I'm wanting to use one of my many Miter
Saws. What blade would be best for cutting extruded aluminum without
burning or discoloring it???
"You can lead them to LINUX
but you can't make them THINK"
Blades have been mentioned in this thread already so I won't go there.
However, my first real adult job was as a puller in an extrusion
plant. A puller guides the extrusions (multiple from the die) on a
carbon table until the billet is pressed out. Then before the next
billet pushes out the previous extrusion, the puller has to cut the
ends off relatively evenly with a portable circular saw. We were
issued a "wax stick" (a waxy substance of which I am not sure of the
composition) and before we cut the aluminum, we stuck the stick into
the blade while it was running. The aluminum cut like butter.
Remembering that, later in life, I've used a toilet wax seal for the
same purpose and it had the same effect.
There ya go! Aluminium! The most versatile (and abundant) metal on
the planet. I use that stuff for a lot of straight edges, jigs, saw
horses, you name it. And most extrusions are sold by the pound.
ROTFL ... I have a similar, but what I would rather think of as cleverly
placed, "zero clearance upgrade" on the fence of my miter gauge fence.
Too bad that it's at an obscure angle that will never be used again.
Many years ago I cut a ton of Alum picture frames on a Makita miter
saw, and used an ordinary crosscut blade, with carbide tips. I used a
wax candle for lube, and fed the saw slowly. Worked like a charm.
You might check with a local picture framer, as they use a saw for all
Alum picture frames.
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