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Old 03-07-2015, 07:39 PM   #1
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Best way to cut alum. diamond plate

whats the best way to cut aluminum diamond plate. jig saw ? cut off wheel ?
cut on back side ? or front. some cuts will be curved any advice is welcome
thanks
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Old 03-07-2015, 07:50 PM   #2
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From what you describe, probably a Jig saw with metal cutting blade.
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Old 03-07-2015, 08:33 PM   #3
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If you have a high output air compressor an air nibbler or an air powered saw(depending on thickness) would be your best bet
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Old 03-07-2015, 09:02 PM   #4
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find someone that drinks beer and has a plasma cutter
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Old 03-07-2015, 09:09 PM   #5
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Skill saw....just watch for the splinters. Ear and eye protection is needed....and lube helps. Believe me!
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Old 03-07-2015, 09:12 PM   #6
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Saber saw from back with light oil. Cuts easy
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Old 03-07-2015, 09:22 PM   #7
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Quote:
Originally Posted by kustom View Post
whats the best way to cut aluminum diamond plate. jig saw ? cut off wheel ?
cut on back side ? or front. some cuts will be curved any advice is welcome
thanks
How thick? Cut off wheel will be interesting on the curved pieces. Others have some good advise above, including the beer and plasma cutter.
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Old 03-07-2015, 09:26 PM   #8
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find someone that drinks beer and has a plasma cutter
XXX2^^^^

Unless you know a guy with a wet jet.
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Old 03-08-2015, 03:05 AM   #9
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If you intend to do it yourself, use a jigsaw with a fine metal blade. The biggest issue is the metal will want to jump. Secure it well and keep downward pressure on the jigsaw to keep the metal from moving. I like to use blue tape and draw my cut lines on the tape.
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Old 03-08-2015, 03:21 AM   #10
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Cut off wheel is not the best choice. With aluminum the wheel will load up and become useless. Short of the plasma cutter, the fine blade Skill saw is the best choice - unless you have band saw with a fine metal cutting blade.
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Old 03-08-2015, 04:13 AM   #11
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Cut off wheel is not the best choice. With aluminum the wheel will load up and become useless. Short of the plasma cutter, the fine blade Skill saw is the best choice - unless you have band saw with a fine metal cutting blade.
I've used aluminum cut off wheels and they work great for straight cuts. I think the key word with using a skill saw is " fine" blade. I tried using a rough cut blade and almost lost a hand. Plasma cutter and beer work real good if set up proper but sure leaves a mess behind.
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Old 03-08-2015, 04:18 AM   #12
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find someone that drinks beer and has a plasma cutter
Actually, a plasma cutter is over kill...too hot for a metal that's too soft and the heat will scar and stain it up pretty good. I used a skill saw with a ferrous metal cutting blade. Just like the other poster...lots and lots of metal splinters. FULL eye protection...those little buggers fly around like fleas.
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Old 03-08-2015, 06:19 AM   #13
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I was a aircraft sheetmetal mechanic for several years. Aircraft are 85% alluminum, all we ever used was alluminum cutoff wheels with high speed air cutting tools unless we could put it on the band saw. The skill saw or jigsaw when pushed along on the metal will scratch the alluminum. Cut the curves close with the cutoff saw & then use a sander on the highspeed tool or grinding cutter. For tight curves you can also chain drill. Alluminum will cut quick with a file also.
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Old 03-08-2015, 07:19 AM   #14
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I have done my fair share of working with alum both welding and cutting not certified but did it as one aspect of my job as maintenance on field equipment for university of florida.
Actually plasma cutter is best it can be adjusted just like any welder for thickness of material.

You ask cut front or back, back so you won't have to deal with the diamonds when cutting.

For all your straight cuts assuming they will be long circular saw with carbide blade any wood cutting carbide blade will work but it will dull it and then won't be suitable for wood.

Jig saw for curves make sure you pick the correct blade, if you pick a fine blade as suggested could take forever, all blades are designed for thickness of material, fine blade would only be for very thin material, most diamond plate would be at least 1/8 inch thick so fine blade would not be my choice. Let's just say your plate is 1/8 I would probably look at 14 teeth per inch tooth blade if 1/4 inch material would be 10 tooth per inch. They also make blades that have a duel tooth configuration so it works best in multiple applications.
Have never used any cut of blades because mostly use thicker alum and the other solutions have worked for me.
Hope this helps....
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