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4 Main Steps For CNC Machining Process

Mon Sep 11 14:21:29 CST 2023

Step 1: Prepare a CAD Model

This involves creating a 2D or 3D model design of the product. There is much software suitable for the process, with popular ones being AutoCAD and SolidWorks. Furthermore, it is possible to convert 2D designs to 3D designs depending on the product requirement.

Although some product designs might be simple, preparing some CAD models might require advanced knowledge, especially complex product designs.

The CAD model should be properly designed and effortlessly show the operator critical features such as tolerance, construction lines, threads, and other parameters for an effective machining operation.

Step 2: Conversion to CNC Compatible Format

CNC machines won’t understand the CAD model. Therefore, you have to transform the CAD model to a CNC-compatible format so that the machine can interpret it. For this step, you can use CAM software such as AutoCAD, Fusion 360, or other online software services.

This software can convert to a CNC-compatible format and will instruct the CNC machine on parameters. Such as rotational and linear movement, cutting sequence, toolpath, workpiece, machine speed, etc., associated with the machining operation.

Step 3: Setup Execution

This involves choosing the right type of CNC machine and configuring certain operations before the machining operation begins. Selecting the right machine depends on the workpiece, the complexity of product design, and the cost. Afterward, the workpiece is mounted on the machine.

Step 4: Machine the Part

The operator will attach the necessary cutting tools and kickstart the process. The process is automated and will run until deemed complete by the computer program. During and after the machining process, machinists will do several levels of inspection to occur for quality assurance.