a punch press operation, is a cost-effective way to produce a flat tube end for tubular assemblies. Using a dedicated die set, this process combines three separate operations, flattening the end of the tube, trimming the end corners, and piercing a hole pattern for fastening the tube.
SLOTTING
Is a punch press operation that introduces an open-ended slot into the end of the tube. This process requires a dedicated, mandrel-punching die that assists in shaping the tube in the desired manner. Typical shapes include a straight slot (rectangular or square), and a locking slot that has a curved end. Slots are commonly used as keyways for telescoping tubes or for locating the direction of a tube in a fitting during assembly.
Combines a punch press with a dedicated punch die to reshape the end of a tube. Typical shapes include fishmouth and compound fishmouth ends that help allow a tube end to fit tightly to another tube side. Another shape is an angled or "V" notch that is more common for square and rectangular tubes.
