CNC punching is the process of creating a purposeful hole of any shape into a piece of sheet metal, using high force with a tool and die. Sometimes, certain sheet metal fabrication projects require a hole, while others sometimes just need an indent in the metal – both of which can be achieved with the same CNC machinery. Here at DB Sheetmetals, we’ve been providing high-quality CNC punching for over 30 years, with our team having learnt a thing or two about the process. We’ve created a comprehensive list of design tips for businesses looking to utilise CNC Punching in their sheet metal projects.
Choosing CNC over Laser
When cutting shapes out of metal, many manufacturers select to use CNC punching over laser cutting for a multitude of reasons. Generally speaking, using CNC machines has a faster running time than laser cutting, making it more suited to larger volumes. Typically, CNC punching can operate at 500 punch strokes a minute and is more economical to produce simple forms including thread forming, dunces, bridges, dimples and locking tabs, making this manufacturing process suitable for a wide range of applications.
Design Tips
If you’re looking to make use of our CNC punching services, it’s essential that your project considers these design tips:
- Hole diameters or rectangular slots should be the same gauge across the design.
- The distance between the holes also needs to be the same (with the minimum allowance being that of the material thickness).
- Your overall design should be accommodating to the CNC punching machine.
It’s vital to follow these tips for the most cost-effective design, as it takes only 0.5 seconds of time to punch a hole with a CNC turret. In comparison, hand tooling the same hole can take between 10-15 seconds and, due to the labour involved, will cost much more in the long run.
Contact Our CNC Punching Experts
For more information about our CNC punching services, or to enquire about your sheet metal fabrication project, don’t hesitate to contact our team of manufacturers today. Call us on 01440 706281, or email info@dbsheetmetals.co.uk.