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Posted by Phisherman on April 4, 2008, 9:17 am
>
>> I bought a 10" metal cutting wheel for a miter saw to cut aluminum, but
>> it really doesn't work too well. It cuts it, but it's not a straight
>> cut, presumably because the cutting wheel is flexible, and the motor
>> isn't fast enough.
>>
>> I ordered this blade "http://www.amazon.com/gp/product/B00006407O" but I
>> may return it unopened if it's not going to work well.
>>
>> Is a 14" chop saw necessary for cutting aluminum (3/16" flat bar)?
>>
>> Are most of the chop saws 14" because this effectively lowers the speed
>> of wheel across the metal?
>>
>> I saw a 6" chop saw that runs at 9000 rpm, which is close to the speed
>> of a 14" chop saw running at 3900 rpm.
>>
>
>if you think about it,the larger diameter the cutting blade,the FASTER the
>teeth go(linear rate),for the same RPM.
>
>and a 14" blade has a lot more teeth than a 6" blade.
You don't need a fast blade to cut aluminum. For most applications
the harder the material, the slower the cutting blade. For example,
to cut pine, use a fast blade. To cut iron, use a slow blade. You
can buy blade stiffeners/stabilizer, which look like a large washer
that are fastened to the arbor against the blade. Make sure you buy
one with the correct arbor size of your saw.
See:
http://www.amazon.com/s/ref=nb_ss_gw/002-7200859-9514462?url=search-alias%3Daps&field-keywords=blade+stabilizer
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