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Generally, a CNC router is a computer-controlled machine used for cutting wood and plastic, which are comparatively softer than metals. Now, it is also used to cut weak metals, like aluminum. Due to the bit sticky nature of aluminum, the CNC router is the best tool for cutting it without making any mess. A user needs to know certain tips for cutting aluminum with a CNC router safely and smoothly. Only the best CNC router should be chosen for this job, to manufacture aluminum items accurately.
Go slow in the initial process – Though people want to accomplish manufacturing jobs quickly, they should be careful about the primary removal of the material. However, they do not need to slow down the feeds and speeds; only the rate of material removal should be decreased for the sake of maintaining accuracy.
Check Feed and Speed rate calculator – Perfect accuracy is the primary concern while cutting aluminum with CNC router. Hence, it is best to use Feeds and Speeds Calculator, to ensure accuracy during this job. This type of calculator is available on the internet and the user should carefully choose this calculator, which is specifically designed with necessary features for using with CNC router.
Use of right cutters for aluminum – All kinds of cutters cannot be used for cutting aluminum even though various cutters can be associated with a CNC prototyping. Usually, Carbide cutters are preferred for increasing the rpm of the operation of CNC router spindles. The carbide cutter works much faster than an HSS or cobalt cutter, for cutting aluminum into definite shapes and sizes. The feeds and speeds of different cutters may be checked online before choosing a particular one.
Ensure that chips are cleared off – A large vacuum cleaner can be used to clean all the dust and minute chips formed while cutting aluminum. But larger chips cannot be cleared in this way, which should be neatly cut off and cleared before proceeding with the advanced stage of the manufacturing operation. Many cutters break while re-cutting these large chips. Hence, now air blast is attached to the spindle and directed to the cutting point of the aluminum, to clear off all chips.
Check the depths of cuts and slots – It is tougher to clear chips from deeper cuts and closer slots. So it is essential to take more passes while reaching the required depth, to make the job easier in these cases. The depth is made shallower with an increased number of passes, which simplifies the access to the bottom of a hole on an aluminum sheet.
Lubrication with mist is another essential step that makes aluminum cutting easier with CNC router, to avoid sticking of chips to the cutter.
