Seam Joint Sheet Metal

Cap strip seam a cap strip aka drive slip can be used to draw together two halves of a joint to make a double groove joint.

Seam joint sheet metal.

It is used to join different material and sheet thickness parts. Joints the grooved seam joint fig. Hemming and seaming are two similar metalworking processes in which a sheet metal edge is rolled over onto itself. A variety of seams are used to connect pieces of sheet metal in construction auto body creation and fine art sculpture.

It also provides a good place for sealant when used. Pull the top handle closed to squeeze the bend tight and complete the female side of the pittsburgh seam. Push the bend under the top die. It is a method often used to assemble air conditioning and heating ducts.

This assembly method is relatively simple and convenient and can complete rapid assembly. Hemming is the process in which the edge is rolled flush to itself while a seam joins the edges of two materials. Sheet metal clinching joint creates a button type positive connection between two or three layers of sheet metal. The type of seam used depends largely on the application.

Pull the metal forward 1 2 inch to release it from the top die. Contact metal sales for more information on these and other products. Standing seam sheet metal roof panels 07 41 13 specification data this specification data sheet is provided by metal sales manufacturing corporation as a technical support tool incident to the sale of its magna loc roof panel products. Rectangular longitudinal seam leakage for pittsburgh and buttonlock seams is low compared to that in transverse joints smacna duct construction standards 2005 but smacna also states that the designer is responsible for determining the pressure class or classes required for duct construction and for evaluating the amount of sealing.

The hook in the lower sheet provides a degree of security against water penetration as long as it is not submerged. 2 57 is one of the most widely used methods for joining light and medium gauge sheet metal. Some seams are created entirely by machine or in a metal shop while others are made to snap together without requiring welding or soldering on site. Release the brake and remove the sheet metal from the brake.

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. Hems are commonly used to reinforce an edge hide burrs and rough edges and improve appearance. A similar strip can be used to create a locked corner seamwhich is useful for the assembly of rectangular shapes. Also referred to as a hook seam or single lock seam this seam provides for a mechanical connection between the copper sheets.

When making a grooved seam on a cylinder you fit the piece over a stake and lock it with the hand groover fig.