Placing a 90-Degree Bend in 1/8-Inch Aluminum
- Mark the location of the bend on both sides of the aluminum sheet. Place a small punch mark on each line with a center punch and a hammer.
- Measure the distance between the top clamping leaf of the hand brake and the bending leaf in the flat position. Increase the distance to 5/32 of an inch by turning the adjustment screw on the back of the hand brake with the adjustable wrench.
- Align the punch marks with the front edge of the clamping leaf. Pull the clamping leaf handles to hold the metal in place.
- Lift the bending leaf, applying slight pressure to the aluminum. Release the bending leaf to inspect the bend area of the aluminum. Look for small stress cracks along the entire length of the bend.
- Raise the bending leaf to a point that looks close to 90 degrees, taking care not to overbend the metal. Measure the angle with the angle finder. Add more pressure to the aluminum if the bend is less than 90 degrees.
Things You Will Need
- Center punch
- Hand brake
- Adjustable wrench
- Angle finder
- If you overbend the aluminum sheet, remove the sheet from the brake and apply light hand pressure to the bend to lighten the brake point.