When it comes to CNC milling, there are two typical ways that it is done. Both use a machine that is controlled by computers and has little to no manual interaction. This makes CNC manufacturing incredibly fast and accurate, especially when it comes to producing tight-tolerance parts. It also offers unparalleled consistency, which is something that cannot be achieved by manual mills, even if the same person is handling the operation each time.
The first step of cnc milling parts supplier is to create a CAD model for the part that you want to be fabricated. This will include information pertaining to the size and geometry of the finished product. It is important to ensure that the CAD model will actually be capable of being fabricated using your chosen CNC machine. This is because some machines have limitations in the sizes and shapes of the features they can cut, including undercuts (recessed or sunken features).
Once you have a CAD model for your part, you will need to get it programmed for your CNC machine. A skilled machinist will program the CNC machine to perform the necessary cutting operations using tool paths based on the geometry of the finished product. This is accomplished by loading a file that contains the geometry of your part into the CNC machine’s computer.
The next step is to run the CNC milling machine. Once the machine is running, it will start to remove the material from your workpiece by rotating the tool at high speed and using a varying feed rate. This will result in your part being progressively shaped until it is finished and ready for shipment.