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Post by sdb777 on Dec 10, 2009 5:54:11 GMT -6
I know this is a wood forum, but I wanted to throw this out anyway.....
I currently have a 10" compound miter saw. The blade it came with is great(until I learn that there are better) for cutting 2-by's and such.
The question:
Is there a blade I can put one this saw to cleanly cut either copper or brass tubing?
Please remember that your simple answers are best, as I'm just getting started in the wood-working world!
Scott (I haven't learned the wording yet) B
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Post by fredbelknap on Dec 10, 2009 7:18:48 GMT -6
Scott I'm sure there is, I got a 7.25" metal cutting blade from Freud ($40+) and use it on a circular saw. I have cut 2" metal conduit with it easily. You need good eye,ear, face and hand protection. It would fit the CMS if the arbor is 5/8".
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Post by TDHofstetter on Dec 10, 2009 8:12:36 GMT -6
Any SMALL-DIAMETER nonferrous-metal blade with a strong negative rake (at least 10 degrees negative rake) will work. The smaller the diameter the better off you are, because both copper and brass like to be cut at rim speeds lower than wood likes. Aluminum likes to be cut at wood-cutting speeds, but the copper-bearing alloys don't. The small diameter also gives the saw more torque for cutting metal.
Such a blade won't guarantee a nice clean cut, though - especially in copper, which is a "gooey" metal.
Your BEST SINGLE BET is an abrasive blade designed for nonferrous metals. I know of three types of bonding for abrasive blades - masonry, ferrous, and nonferrous. Any of the three will do the job, but a nonferrous-metal one will do it best. That takes care of the rake issue, too.
Be aware that your saw will spray copper/brass "dust" everyplace, and you MUST MUST MUST keep that OUT of your saw's motor!
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Post by Ruffnek on Dec 10, 2009 13:20:34 GMT -6
Scott,
The non-ferrous blade Tim mentioned will do it but you would be better off getting a tubing cutter. They are inexpensive, are made for just that application and won't spray copper/brass bits everywhere.
The tubing cutter will probably have a little Vee attachmjent on it also. Use that to ream out the inside end of the tubing after cutting it.
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Post by triplefreak on Dec 10, 2009 13:59:30 GMT -6
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Post by TDHofstetter on Dec 10, 2009 15:02:21 GMT -6
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