Punching is the most efficient method for secondary processing of aluminum extrusions. You can punch multiple holes and notches in one stroke of the press. Inside corners are easy to punch.

Technical difficulties in the past limited the use of punching aluminum extrusion, so CNC machining took over as a primary method to finish extrusion. That has now changed.

The holes and notches on the part above were done in one stroke of the press – about 5 seconds.