A CNC (Computer Numerical Control) router is a computer-controlled cutting machine. It is easily programmable and the design is converted to G-code which the machine can use to set the coordinates and make the required cuts. This tool enables the user to cut 3D objects from a wide range of materials including: wood, foam, plastics, steel, and aluminum.
Though people often equate CNC machining with wood and plastics, few are aware that a CNC router can also be used for cutting aluminum. Here are some tips to remember when machining aluminum with a CNC router.
- Choose carbide cutters: this will help boost your rpm because carbide cutters can run faster than Cobalt and HSS.
- Use smaller cutters: cutters with a smaller diameter will also help increase rpm.
- Clear chips: doing this on a regular basis will prevent you from breaking cutters.
- Lubricate: using a mist to lubricate will help prevent chips from sticking to the cutting edges.
- Keep up the feedrate: if you slow down the feedrate too much, your router tool will start to rub rather than keep cutting.
- Make multiple shallow passes: this will prevent aluminum chips from gathering at the bottom of the hole.
- Make fewer flutes and wider cuts: for aluminum, you won’t want to make more than three flutes. This will reduce the risk of jamming that may break your cutter.
Here at CAMaster, we are committed to facilitating and increasing your company’s productivity and efficiency by providing the best quality CNC routers and accessories. Our team has a broad knowledge base and we are dedicated to sharing our experience with you to help you take your machine shop to the next level. Contact us today to discuss our range of Stinger and Cobra CNC routers for cutting aluminium.