Cut Down

After the thickness has been measured, the cans are cut twice so that the interior of the double seam can be evaluated using the seam scope projector. The cans are cut with a two blade saw, roughly in the same place the thickness was measured.
Procedure:


Step 1- Adjust the saw to fit the appropriate size can. Fit the bar labeled with the correct can size onto the blades. Adjust the cutting guides by sliding them in and screwing them securely in place.





Step 2- Lay the can flat on its side on the cutting plane. Rotate the can so the seam will cut a section 90° away from the side seam. Hold the can in both hands with the thumbs supporting the bottom as seen in the figure. Push the can forward in a thrusting motion until the can stops moving, and then slide it back away from the blade. This forms a cut cross section of the double seam.


Step 3- After the can has been cut, the excess lid should be clipped off the seam sections using a pair of sharp nippers. This allows the seam section to fit within the seam scope projector clamp.



Note: It is important to make a smooth cut. This will make viewing the cross section in the seam scope easier. Tightness must not be done before recording the internal tests. Additional cuts may be necessary if a measurement is out of range. This is not possible if the seam has been torn apart to evaluate the tighteness.



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