Bending Galvanized Sheet Metal Over Gable

Bend the flashing into a v shape to fit over the top roof ridge and the corners where the panels meet.

Bending galvanized sheet metal over gable.

Galvanized steel is a resilient and corrosion resistant metal which makes it an ideal component in many projects. Bending the galvanized steel can help you mold it into shapes appropriate for your project. Even on malleable materials you can end up cracking the metal at the bend or weakening it to the point where it ll break with minimal force. Metal is placed cantilevered over the edge of the lower die similar to the setup in edge bending.

The flashing should overlap the edge of the roof by one inch to help direct water. Bending is one of the most common sheet metal fabrication operations. The force must exceed the material s yield strength to achieve a plastic deformation. If you bend to a sharp inside corner with sheet metal you ll be adding a ton of internal stresses.

Geometry of tooling imposes a minimum bend dimension. When galvanized steel is bent after the coating has formed there is no issue with cold work but there can be an issue with the coating cracking or crazing in the area of the bend. Force is transmitted to the punch causing it to close with the work. It helps direct water away from the meeting points and keeps the roofing dry.

This is normal for galvanized steel and with the cathodic properties of the zinc coating is acceptable for a part bent after galvanizing. The solution is to have a radius on the tool that you ll be using to bend the metal. Simple sheet metal bender using a hand roller clamps and plywood. The diagram shows one such mechanism.

The groove on the cylinder is dimensioned to create the correctly. The bending process is fairly simple but you should feel confident operating power tools before you attempt to bend the galvanized steel. Abn sheet metal hand seamer 3 inch straight jaw manual metal bender tool sheet metal bending pliers flattening tool 4 5 out of 5 stars 137 27 89 27. Flashing is metal trim that fits over joints where two sections of roof meet.

To bend your sheet metal with a vise and hammer you will need. Use the minimum bend dimension values in the charts below for your minimum closeness of cutout to a bend. This is done through the application of force on a workpiece. Also known as press braking flanging die bending folding and edging this method is used to deform a material to an angular shape.

Refer to the chart for values for folder as well as various press brake tooling combinations.