What are the differences between CNC machining and machining?

       Numerical control processing and mechanical processing are processing techniques that are often used in hardware processing now. Numerical control processing techniques are derived from conventional processing techniques. They are a perfect combination of conventional processing techniques with computer numerical control technology, computer-aided design and auxiliary manufacturing technology, because With the continuous development of technology, there are more and more parts that require precision machining in modern manufacturing, and the requirements for machining accuracy and the surface complexity of processed forest parts are becoming higher and higher. Therefore, CNC machining often gets a lot of attention, but from the cost point of view, the cost of CNC machining is higher than the cost of traditional machining processes.

  The difference in processing technology. In the conventional machining process, whether it is the positioning datum or the clamping method, the machining tool, the cutting and other aspects, the machining tasks are the same. The CNC machining process can have multiple product solutions and can compensate for multiple processing. Positioning and processing tools make the main line for the process arrangement, and the process has diversified characteristics. This is the difference between the CNC machining process and the traditional machining process.

   The difference between clamping and fixture. In the CNC machining process, not only the coordinate directions of the fixture and the equipment must be kept relatively fixed, but also the dimensional relationship between the parts and the equipment coordinate system must be coordinated. The positioning and clamping are required during the clamping process. Steps are effectively controlled. Under the traditional mechanical processing conditions, the processing capacity of the equipment itself is limited. Therefore, it is necessary to carry out multiple clamping during the processing process, and also need to use a dedicated fixture, which leads to a relatively high cost in the design and the manufacturer. Increasing production costs invisibly, but the positioning of the CNC machining process can be debugged with an instrument, and in many cases, no special fixture design is required. So relatively speaking, its cost is lower.

   The difference in the use of tools.

1. In the process of machining, the choice of tool needs to be determined according to the difference between the machining process and the machining method. Especially in the CNC machining process, the use of high-speed cutting is not only conducive to the efficiency of the machining, but also the quality of the machining is more guaranteed. , It can effectively reduce the probability of deformation caused by cutting, and make the processing cycle shorter, so the requirements for cutting tools under high-speed cutting are higher.

  2. At present, there is also a dry cutting method in the international machining field. This cutting method does not add cutting fluid or only needs a small amount of cutting fluid. Therefore, the tool needs to have excellent heat resistance Performance, compared with the ordinary machining process, the CNC machining process has higher requirements for the performance of the tool.