A file and a sander will do the job putting a small round-over on that edge fairly quickly.
Moderator
A file and a sander will do the job putting a small round-over on that edge fairly quickly.
--
The most expensive tool is the one you buy "cheaply" and often...
Contributor
Contributor
CAST IRON IS NOT MALLABLE. there are some expensive ones that are slightly malleable. Any cast iron used in a wood shop should be treated as totally rigid and never try to bend it or pound it to shape it. Glass is far more flexible.Originally Posted by glenn bradley
Contributor
I don't he was using "malleable" in the metallurgical sense.
[OP]
Contributor
Did it with an old 3/8" router bit in a few passes. Worked well. Thanks, y'all..........
Member
Could not help but think of a quote I see posted so many times...
”No picture? It didn’t happen!”
Too much to do...Not enough time...life is too short!
Contributor
I was worried someone in the future might find this link and think he meant it could be cold forged like steel. I have never heard it used in any meaning other then it can be bent by force. Like public opinion.
Contributor
I'm no metallurgist, but I hadn't either Bill.
"All that is necessary for the triumph of evil is that good men do nothing."
“If you want to know what a man's like, take a good look at how he treats his inferiors, not his equals.”
Member
I have c-clamps made of malleable iron. I think what they mean is that it will bend pretty far before it breaks. Something about the grain structure and particles of carbon (graphite?) in the matrix, maybe...?
Contributor
I think the old threaded sewer coupling some were just regular cast iron some are malleable iron. The cast iron ones break with a sledge hammer. the malleable have to be cut apart to replumb.
I have no idea where meehanite castings fit in.
Bill D.
Member
HSS drill bits cut into cast iron pretty easily.... may not need to use a carbide bit if you already have hss on hand? Just a thought....
good luck,
JeffD
Member
Impressive!
"the mechanic that would perfect his work must first sharpen his tools.” Confucius
Thanks Johnny, sorry Bill, I probably should have said “softer than you think”.
"A hen is only an egg's way of making another egg".
– Samuel Butler
Contributor
Back in the day, I was taught to never, never, never use oil when cutting cast iron. Something about making it hard. I've never done it and cast iron always drilled great for me. +1 about dialing the speed down as far as you can and doing light cuts with carbide tooling. The tool shouldn't catch. Cast iron just sort of turns to powder when it cuts.
But do consider taking measures to control the dust. It can get into things and it wouldn't be too good for bearings and stuff. Try to connect a shop vac to the router.
Contributor
Files had always seemed kinda useless till I discovered a coarse file.
Posting Permissions
Reply With Quote