CNC turning machining is a method of cutting the workpiece on the lathe by rotating the workpiece relative to the tool. Turning is the most basic and common cutting processing method. Most workpieces with revolving surfaces can be processed by turning methods, such as inner and outer cylindrical surfaces, inner and outer conical surfaces, end surfaces, grooves, threads, and rotary forming surfaces. Common lathes can be divided into horizontal lathes, floor lathes, vertical lathes, turret lathes and profiling lathes, and most of them are horizontal lathes.
1. The machining efficiency of CNC turning machining is high. Turning has a higher efficiency than grinding. Turning often uses large cutting depths and high workpiece speeds. The metal removal rate is usually several times that of grinding. In CNC turning machining processing, a variety of surface processing can be completed in one clamping, while grinding requires multiple installations, so the auxiliary time is short and the position accuracy between the processed surfaces is high.
2. The equipment investment cost is low. When the productivity is the same, the investment of the lathe is obviously better than that of the grinder, and the cost of the auxiliary system is also low. For small batch production, turning does not require special equipment, while large batch processing of high-precision parts requires CNC machine tools with good rigidity, high positioning accuracy and high repeat positioning accuracy.
3. Suitable for small batch flexible production requirements. The lathe itself is a flexible processing method with a wide range of processing. The lathe is easy to operate and fast in turning and clamping. Compared with grinding, CNC turning machining can better meet the requirements of flexible production.
4. CNC turning machining processing can make the parts obtain good overall machining accuracy. Most of the heat produced in CNC turning is taken away by the cutting oil, and it will not produce surface burns and cracks like grinding. It has excellent surface quality, accurate roundness, and can ensure a high degree of processing. The location accuracy.