CNC punch presses were once relegated to fabrication shops as workhorse punchers of holes of various shapes and sizes, and for edge-nibbling of fairly simple shapes. Forming tools then allowed fabricators to add louvers and lances to minimal form heights, 8 mm (0.3 in.) or so, but at a relatively slow speed without extreme precision.
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Today, though, punch-press manufacturers deliver machines with comparatively fast forming capabilities and accuracies once relegated to hard-tooled stamping presses.
Thanks to technology enhancements to CNC punch-press hydraulic systems, the use of electric punch drives, linear-motor technology and other improvements, traditional stamping houses and tool-and-die shops now see reason to invest in CNC punching machines.
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