Pittsburgh Joint Sheet Metal

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Pittsburgh joint sheet metal.

Its big advantage is that no additional hammer over operation is required with a direct result of less labor cost in assembly. When making a grooved seam on a cylinder you fit the piece over a stake and lock it with the hand groover fig. In sheet metal shops a rollforming machine is used to fold the pittsburgh seam on one end of a piece of ductwork for example. For more information about sheet metal careers.

2 57 is one of the most widely used methods for joining light and medium gauge sheet metal. A pittsburgh lock consists of three bends that form an extended s shape which creates an airtight seal after completion. Find the training center on twitter. It consists of two folded edges that are locked together with a hand groover fig.

This increases productivity while keeping each seam consistently formed on multiple pieces of duct. Most modern sheetmetal fabrication shops use a mechanized piece of equipment to create the pittsbugh joint on one. How to make a pittsburgh joint in sheet metal by hand 2 how does spot welding work. The pittsburg joint is used for most commonly fabricated metal retangular ducts.

It is a very efficient machine to bend straight duct joints and fittings with tdc type and tdf type flange connectors. The grooved seam joint fig. Designed so one operator can quickly slide a piece of sheet metal into the machine and align the notches in an instant on the. The button punch snap lock is used in the same way as the pittsburgh lock for joining comer sections of sheet metal.