Making An Edge Joint Of Sheet Metal

The grooved seam joint fig.

Making an edge joint of sheet metal.

Early written accounts of making edge joints would tout a variety of approaches as the best to ensure the finished panel stayed together. Slide a piece of sheet metal into the opening in the brake jaws. Create a line of these stamps as long as you need. Lift the lower die handle until the metal has a 90 degree bend.

The rounded edges provide a larger bonding surface for galvanizing paint and coatings. Smooth and even rounding is essential whether you need to comply with the regulations en 1090 iso 8501 iso 12944 or imo pspc. Hemming is the process in which the edge is rolled flush to itself while a seam joins the edges of two materials. Some recommended using a tongue and groove joint.

Close the brake to hold the metal in position. It consists of two folded edges that are locked together with a hand groover fig. Hemming and seaming are two similar metalworking processes in which a sheet metal edge is rolled over onto itself. When making a grooved seam on a cylinder you fit the piece over a stake and lock it with the hand groover fig.

The two pieces of sheet metal connected to each other by folding or bending tabs in the form of a buckle and a clamping slot. Embossing sheet metal is a simple way to add dramatic decoration as well as increase the strength of a piece. The radius cutters from beveltools create a uniform rouned edge in one pass. This assembly method is relatively simple and convenient and can complete rapid assembly.

Open the sheet metal brake. The method of joining two metal sheets together including the steps of striking a first relatively narrow and long tongue up from the first sheet to leave a first hole therein and with said tongue. We can do that by either selecting the tool right up here on the sheet metal toolbar or we can pre. Hems are commonly used to reinforce an edge hide burrs and rough edges and improve appearance.

Once you have a starting sheet metal part the next logical step is to add some edge flanges. Using the tool and a hammer simply place the tool edge on the sheet and bang the hammer on the other end to stamp the piece. There was even a special kind of nail that could be used for joining edges.