How To Bend Galvanized Steel Sheet

Showing how i bend steel plate without using a brake.

How to bend galvanized steel sheet.

As a result the wipe die also determines the bend s inner radius. 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. The slack between the wipe die and the punch plays an important role in getting a good result. Bending after hot dip galvanizing is sometimes necessary if the parts do not fit into their intended spot.

Clamping your sheet metal to the straightedge is a must. Clamp the wood on top of the metal to the workbench. Determine your minimum bend by measuring the distance from your closest feature i e. 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.

Set a straight edge along the section as you work so your line is straight. Showing how i bend steel plate without using a brake. Next place the wood parallel and slightly behind the bending line. 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. A brake is a device that allows you to bend a piece of sheet metal at a particular angle. 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. Wipe bending or edge bending is another way to bend sheet metal edges.

It is important to make sure that the sheet is properly pushed onto the wipe die. When working with sheet metal one particularly useful piece of equipment is the brake. How to bend sheet metal without a brake. Choose a bend radius that matches your minimum bend.

Step 2 move the metal to the edge of a table. If you have any questions or want to discuss your design contact us. Otherwise the sheet metal is almost certain to shift as you bend it resulting in a bad bend. 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.

Draw a line along the section you want to bend using a black felt tip marker. If you want a sharp 90 bend tap along the crease with a mallet. This allows for some cold work in the bend area without causing cracking of the steel. Finally bend the sheet up by hand to the angle desired.