How Does A Sheet Metal Seamer Work

Several types of seams used to join sheet metal sections are discussed in this section.

How does a sheet metal seamer work. Lap seams can be joined by drilling and riveting by soldering or by both riveting and soldering. Watch this quick tutorial on how to use the hand seamer duckbill pliers and fluting pliers to straighten out the flanges on an aircraft rib. If you have a power seamer you wont be as concerned about scratches from your hand closing tool and will want a tool to make quick 8 crimps. In some cases pieces are fabricated on site then installed and welded interlocked or bolted in place.

There are three types of lap seams. This hand seamer produces a permanent tight fitting seam. Commonly used in the hvac industry and for custom fits in sheet metal fabrication they make accurate crisp angle bends creating a finished edge on sheet metal. To figure the allowance for a lap seam you must first know the diameter of the rivet that you plan to use.

Many sheet metal workers specialize in maintenance. It involves connecting two folded edges usually made with a machine which are interlocked and pressure tightened to make the seam. The crescent wiss straight handle hand seamer is a powerful tool for bending or flattening sheet metal by hand. Do i have a power seamer or am i closing the entire roof by hand.

Seamers are machines that bind the ends lids to the cans using a double or in some cases a triple seam. Standard hand seamers have jaws that bend seams to a single width and depth. Some power seamers will require the user to single lock over every concealed clip that is securing the metal to the roof. It utilizes an optimal handle span to deliver maximum power from an ergonomic operating range and features non slip cushion grips for superior comfort and control.

The plain lap seam the offset lap seam and the corner lap seam fig. Grooved seam the grooved seam process is similar to the folded seam process. Hand seamers are handheld tools that help bend or flatten sheet metal to desired shape. Folded seams are traditionally used for industrial metal roofing metal pipes and ductwork.

There are many seamers for different type of material steel and aluminum are the most common of various material thickness depending on the type of can.