Large CNC machining refers to a processing method of CNC machine tool processing, compared with traditional processing methods, CNC machining has higher accuracy, faster processing speed and better processing quality. In large-scale CNC machining, a variety of different types of CNC machine tools are usually used, such as lathes, milling machines, grinders, etc., to meet the processing needs of different shapes and sizes of workpieces.

Large CNC machining is usually used to manufacture large parts or workpieces, such as aircraft parts, ship components, automotive parts, etc. These large workpieces usually require high precision and complex processing processes, and traditional processing methods often cannot meet the needs. CNC machining can complete complex process requirements through pre-programming and one-time processing, which greatly improves processing efficiency and quality.

The advantages of large-scale CNC machining are mainly as follows: 1. High precision: CNC machine tools are controlled by CNC system, which can achieve high machining accuracy and meet the processing requirements of complex parts; 2. High efficiency: the CNC machine tool can complete a variety of processing operations on the same equipment, which greatly improves the production efficiency; 3. Flexibility: CNC machine tools can be programmed according to different processing needs, strong flexibility, suitable for the processing of different workpieces; 4. Quality stability: large-scale CNC machining adopts automatic processing method, which can ensure the quality stability of each product.

In actual production, large-scale CNC machining usually needs to go through the following steps: 1. Design processing technology: according to the size, shape and other requirements of the workpiece, design processing process; 2. Write processing program: according to the processing process, write numerical control program to determine the processing route, tool path, etc.; 3. Commissioning equipment: commissioning CNC machine tools to ensure their normal operation; 4. Machining workpiece: According to the written CNC program for processing, monitoring the processing process to ensure product quality.

In general, large-scale CNC machining is an efficient and accurate machining method, which is widely used in various industries. With the development of science and technology and the continuous progress of numerical control technology, large-scale CNC machining will have broader development prospects in the future, and provide better solutions for the processing of various large-scale workpieces.