A mitre saw creates accurate crosscuts, most commonly in wood and plastic. If you are working with aluminium and need to make a crosscut, use a standard mitre saw but switch the blade. As long as you are careful, you can cut the aluminium to the exact angles that you need with no bad effect.
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Things you need
- Carbide tip blade
- Piece of wax
- Protective goggles
Switch your standard mitre saw blade for a carbide tip blade. This blade will cut through the aluminium with less risk of jamming your saw.
Rub a piece of wax along the edge of the blade. Turn the blade with your hand so the wax covers the entire edge on both sides of the blade.
Clamp the aluminium to the bed of the saw. Use multiple clamps so the metal doesn’t move and is held steady once you start the saw.
Put on thick protective goggles to deflect any shards of aluminium that the cutting forces from the piece.
Set the saw to a low setting and work very slowly. Don’t force the saw through the aluminium, but let it ride along the metal at its own speed.
Tips and warnings
- You can get carbide blades that are designed to cut metal, but you will have to visit a special metalworking store.
- If your saw meets resistance when it touches the aluminium, stop cutting immediately. Forcing a metal cut can break your saw and possibly injure you.
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