A Dewalt miter saw equipped with the correct blade can cut lightweight aluminum easily. All Dewalt saws come equipped with carbide-tipped blades, which are much stronger than regular steel blades. Tungsten carbide, applied to each saw tooth when the blade is manufactured, is one of the hardest man-made materials. Regular steel blades will melt the aluminum, and abrasive blades will create aluminum dust that can ruin the saw motor.
Things You'll Need
- Dewalt miter saw
- carbide-tipped saw blade
- wax lubricant, Crisco or WD-40
Check the blade in your saw to ensure it's a Dewalt carbide-tipped or carbide-toothed blade. If the blade is regular steel or an abrasive wheel, remove it and replace with a carbide-tipped blade.
With the saw unplugged, apply lubricant wax to the saw blade. The wax helps reduce friction during the cutting procedure, ensuring a cleaner, burr-free cut. In addition, the wax makes sure pieces of aluminum do not weld to the saw blade during the cut. You also can use Crisco or WD-40.
Place your aluminum onto the saw base, and make sure it's flush against fence. Mark the spot where you need to cut, and line up that spot with the blade.
Depress the power switch. In a smooth motion, lower the blade into the aluminum. Thinner pieces of aluminum will be cut quickly, and thicker pieces will take longer for the blade to pass through.