CNC punching aluminium sheet metal
So what is CNC punching?
Here’s a perfect example of the flexibility in CNC punching that can be achieved when using a Trumpf machine. These aluminium housings and covers were CNC punched from the same sheet of material and used together to create an enclosure for a light fitting gear box. The ability to be able to mix and match components together on a single sheet of material is very useful when running production to keep batches together and ensure that the same material with bending properties is used on mating parts. Once the CNC press brakes have been set up to run a housing such as these they can go straight into the covers without a tooling change of more test samples needed for trying out the bend dimensions.
If you look carefully you can see that the housing blanks share a common slit line in both the X and Y axis. This techniques helps us save time in CNC punching and materials across the whole sheet. You can also see that we have used a corner radius tool on the covers to the left of the photo to produce a clean R5 corner in a single hit and used a knife tool to produce the holding tag for the part in the CNC nest. Both the housing and the covers where simply shaken and they then fell out of the sheet with 0.1mm corners tags, a quick de-burr and they were ready for bending.
Looking for someone to manufacture your aluminium sheet metal work by either CNC punching or laser cutting? Please give us a call on 01489 577786 or send us you drawings (DXF, DWG, STEP, SAT or PDF) to email@example.com and we will be happy to help you and produce some prices for different batch sizes.