CNC machining process
The CNC machining process refers to a series of processing steps required in the machining process using a computer numerical control (CNC) machine tool. Below is a basic CNC machining process, including seven steps.
Jan 09,2025
The CNC machining process refers to a series of processing steps required in the machining process using a computer numerical control (CNC) machine tool. Below is a basic CNC machining process, including seven steps.
The first step is part design and CAD drawing. Before CNC machining, the part needs to be designed and drawn using computer-aided design (CAD) software. In CAD software, the dimensions, shape, and processing requirements of the part can be determined.
The second step is part programming. After completing the CAD drawing, the drawing information needs to be converted into program code that the CNC machine tool can recognize and run. This step requires the use of computer-aided manufacturing (CAM) software for part programming to generate machining paths and cutting parameters.
The third step is CNC machine tool setup. Before machining, the CNC machine tool needs to be properly set up. This includes clamping the workpiece, installing the appropriate cutting tools, selecting the appropriate cutting speed and feed rate, and adjusting the machine tool's coordinate system and the position of the worktable.
The fourth step is test cutting. Before formal processing, test cutting is usually required. The purpose of test cutting is to check the accuracy of the machining program, find potential problems, and make adjustments. Test cutting ensures that the final machining effect meets the requirements.
The fifth step is to start formal machining. After completing the test cut and ensuring everything is ready, formal CNC machining can begin. According to the machining program, the CNC machine tool will automatically perform cutting operations, machining the workpiece according to the predetermined path and parameters.
The sixth step is regular inspection and maintenance. During the machining process, it is necessary to regularly check the wear of the tools and replace or sharpen the tools in time. At the same time, regular maintenance of the machine tool body is also required to ensure the normal operation of the machine tool and the stability of the machining quality.
The seventh step is to complete the machining and perform post-processing. After the machining is completed, the parts need to be surface treated and inspected. Surface treatment can include polishing, spraying, etc., to improve the quality and appearance of the parts. Inspection is to verify whether the machining results meet the requirements through measurement and detection technology.
The above is a basic CNC machining process. With the continuous advancement of technology, CNC machining technology is also constantly developing and improving, and the machining process is becoming more automated and precise. By using CNC machine tools for machining, machining efficiency and quality can be improved, labor costs can be reduced, and it is widely used in the manufacturing processes of various industries.
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