Why wont my plasma cutter cut aluminum？

There could be several reasons why your plasma cutter is having difficulty cutting aluminum:

1. Incorrect settings: Ensure that your plasma cutter is set to the appropriate settings for cutting aluminum. This includes the correct amperage, gas flow rate, and torch height.
2. Gas mixture: Using the correct gas mixture is crucial for cutting aluminum. Make sure you are using a gas mixture suitable for aluminum cutting, typically consisting of argon with additions of hydrogen or nitrogen.
3. Torch condition: Check the condition of your plasma torch and consumables. Worn or damaged consumables can affect the quality of the cut.
4. Material preparation: Ensure that the aluminum surface is clean and free of any contaminants, such as oil or grease, which can interfere with the cutting process.
5. Torch alignment: Check that the torch is properly aligned and positioned at the correct angle relative to the workpiece.
6. Power supply issues: Inspect the power supply to ensure it is delivering consistent power to the plasma cutter.

If you’ve checked these factors and are still experiencing issues, it may be helpful to consult the manufacturer’s guidelines or seek assistance from a professional.