The seam can be on the outside or on the inside.
Tools for making a grooved joint seem in sheet metal.
2 57 is one of the most widely used methods for joining light and medium gauge sheet metal.
Grooved seam are a type of self locking joint used commonly in the fabrication of cylindrical and conical objects.
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Manual grooved seams are pounded with a mallet to finish with no soldering required.
Rk edge treatment of sheet metal terminology.
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Rk safety housekeeping maintain due care in handling and forming sheet metal.
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The lock seam which has an additional fold and is often used for corner seams is a type of grooved seam.
The grooved seam joint fig.
The extra material allowance for a grooved seam is 3 times the width w of the seam one half of this amount being added to each edge note.
Crescent wiss 24 folding tool wf24.
The grooved seam is commonly used to construct objects made of light sheet metal such as air ducts.
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Up to 4 times the material thickness may also need to be added for thicker.
Abn sheet metal hand seamer 3 inch straight jaw manual metal bender tool sheet metal bending pliers flattening tool.
Calculate groove allowance and form grooved joint as per drawing key learning points.