On Thursday 25 April 2019 23:59:29 Bruce Layne wrote: > I've used my power miter saw to cut aluminum on many occasions. I use > a 14" carbide blade that's intended for wood. I go slower than I'd > cut wood. I use a feed rate that produces a nice thin chip. I'm sure > it dulls the carbide faster than cutting wood, but it's not that bad. > As was noted in the video, it's much faster than using the bandsaw, > and it's easier to make accurate and repeatable rough cuts. I've cut > thick pieces as shown in the video, but I usually cut 1-2 inch > aluminum angle to make custom brackets. I dry cut the aluminum, > mostly because I was too lazy to set up a mister. > > I've thought about buying one of the similar looking multi cut saws > such as the DW872 that cuts metal at a slower RPM. They can cut steel > as well as aluminum. A good 14" blade is $100 and up, but the cost > per cut is reported to be better than abrasive cutting wheels, and > it's much faster than an abrasive cutuff saw or a bandsaw. > > On 4/25/19 8:30 PM, Gene Heskett wrote: > > On Thursday 25 April 2019 19:21:03 Marshland Engineering wrote: > >> May be of interest to chaps here. This cuts down on milling swarf > >> and machining time. > >> Needed to rough cut 100 blocks of thick aly before putting them in > >> the milling machine. Cutting with only 1.5 mm extra for finish > >> machining. > >> > >> https://youtu.be/gLLt79OqRvA > >> > >> Cheers Wallace > > > > I do that too, but its hell on 12" saw blades.
I say that because the blade on my 12" chop saw, one of the double lever suspended Bosch's that is about a leg at Home Depot, and is at least 2x more rigid in sideway slop than any slider I've seen, is a 100 tooth carbide for fine woodwork, and it takes much more force to slice 1/2" alu than to cut wood. And I went to cut some 3/8" thick cherry last week, for a pallet/spoilboard on the 6040 and it truly is dull. Thats about a $70 blade. Cherry burns easy if the blade isn't truly sharp, and that cut is well burnt. The problem is that they no longer made, and I can't find them online, a tooth style called ATBF, where a flat topped tooth is fitted between the angled teeth. The angled teeth are about a thou taller than the flat tooth, but the flat tooth causes it to cut a flat bottomed kerf instead of one with the ^ sticking up in the middle. Avanti made that blade, but I've not seen it in years, even online. Humm, seems they renamed the tooth profile to ATBR, where 4 ATB's are followed by a raker to clean out the kerf. Might be worth investigating. > > > >> _______________________________________________ > >> Emc-users mailing list > >> Emc-users@lists.sourceforge.net > >> https://lists.sourceforge.net/lists/listinfo/emc-users > > > > Cheers, Gene Heskett > > _______________________________________________ > Emc-users mailing list > Emc-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/emc-users Cheers, Gene Heskett -- "There are four boxes to be used in defense of liberty: soap, ballot, jury, and ammo. Please use in that order." -Ed Howdershelt (Author) Genes Web page <http://geneslinuxbox.net:6309/gene> _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
