How To Seam Sheet Metal

Also known as the circular lap seam the capped on seam is created by laying a flat round piece of metal over a smaller rounded piece such as the base of a cylinder.

How to seam sheet metal.

Once the fold is made the seam is soldered. 2 lay 6 inch wide butyl tape over all horizontally lapping end seams. Mark your bend lines. Apply corner seams manually or automatically while creating other features.

The connecting point where the two separate metal panels meet forms a vertically pointed rib or a seam that is one inch to inch and a half high. 1 make a planer 2mm 2 create a flange 1 manipulated in the sketch option so i have two bends 3 create a new flange 2 with a chain. The overhang on the flat piece is folded over using a mallet. Options all corner seams define how the faces meet along the seam distance and positions and how the bends are relieved in the flat pattern.

You can see in the blue circle that the corner is not nice 4 create a new flange 3. It consists of two folded edges that are locked together with a hand groover fig. The default settings for the sheet metal rule define the default values for the options. An example of how to make a pittsburgh seam in sheet metal on a simple hand brake.

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. Then use your bend allowance to draw your second bend line the intervening distance between your bend lines bend radius. A typical standing seam panel can be approximately 12 16 and 19 inches wide. Position the tape with the release backing on the top.

2 57 is one of the most widely used methods for joining light and medium gauge sheet metal. Sweep the metal roofing sheets of all dirt and debris with a push broom. An example of how to make a pittsburgh seam in sheet metal on a simple hand brake. The grooved seam joint fig.