How To Bend Galvanized Steel Sheet

Set a straight edge along the section as you work so your line is straight.

How to bend galvanized steel sheet.

How to bend sheet metal without a brake in 4 different methods with minimal or homemade tools. When working with sheet metal one particularly useful piece of equipment is the brake. Astm a 143 recommends the minimum bend radius for any part that will be hot dip galvanized after bending be at least three times the material s thickness. Showing how i bend steel plate without using a brake.

Metal shops have brakes mounted at different angles with automated braking arms however it is possible to bend sheet metal at home without the use of a brake. The slack between the wipe die and the punch plays an important role in getting a good result. Next place the wood parallel and slightly behind the bending line. Finally bend the sheet up by hand to the angle desired.

Clamp the wood on top of the metal to the workbench. Clamping your sheet metal to the straightedge is a must. Draw a line along the section you want to bend using a black felt tip marker. A cutout or the edge of your flange to your bend.

To clamp efficiently lay your sheet metal on the top surface of your straightedge with the drawn line perfectly aligned with the outside edge of the sheet metal. Now that you know your bend allowance take your protractor and draw a clear line with your marker across the point at which you will bend your sheet metal. 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. If you want a sharp 90 bend tap along the crease with a mallet.

Then use your bend allowance to draw your second bend line the intervening distance between your bend lines bend radius. Mark a bend line and place the sheet metal on the edge of your bench. This allows for some cold work in the bend area without causing cracking of the steel. Choose a bend radius that matches your minimum bend.

Wipe bending or edge bending is another way to bend sheet metal edges. A brake is a device that allows you to bend a piece of sheet metal at a particular angle. Showing how i bend steel plate without using a brake. As a result the wipe die also determines the bend s inner radius.

It is important to make sure that the sheet is properly pushed onto the wipe die. Otherwise the sheet metal is almost certain to shift as you bend it resulting in a bad bend. If you have any questions or want to discuss your design contact us. Bending after hot dip galvanizing is sometimes necessary if the parts do not fit into their intended spot.