Different between cnc cutting tool and normal traditional cutting tools

CNC tool in the high-performance, high-precision CNC machine tools on the application, in order to obtain stability and good processing efficiency, the general CNC tool from the design, manufacture and use of both higher than the requirements of conventional tools. The main differences between NC tools and common tools are in the following areas.

(1) high-precision manufacturing quality

In order to stabilize the processing of high-precision parts of the surface, so the tool (including the parts of the tool) manufacturing in the precision, surface roughness, shape and position tolerance and other requirements than the average tool more stringent requirements, in particular, The size and precision of the key parts such as the repeatability of the size of the blade tip (cutting edge) after the index, the cutting edge of the blade and the positioning of the key parts, the surface roughness must be strictly guaranteed, and in order to facilitate the tool And size measurement, base surface machining accuracy should also be guaranteed.

(2) optimization of the tool structure

Advanced tool structure can greatly improve the cutting efficiency, such as high-speed CNC milling tool in the structure has been more use of the blade edge and large helix angle structure, carbide indexable tool is used in the cooling, blade mounted, Can be replaced and adjustable structure, and such as the internal cooling structure, it is generally not applicable to ordinary machine tools.

(3) the wide application of high quality materials

In order to prolong the service life of the tool and improve the tool strength, the tool material of many CNC tools is made of high strength alloy steel, and heat treatment (such as nitriding and other surface treatment), it can be applied to the large cutting amount, and tool life Can be significantly improved (ordinary tool is generally used in the quenched and tempered medium carbon steel). In the tool blade material, CNC tool is more selection of a variety of new grades of cemented carbide (fine particles or ultra-fine particles) and super-hard tool materials.

(4) the choice of reasonable chip breaker

The tool used on the CNC machine tool has strict requirements for the chip breaker. When machining, the tool does not work properly (some CNC machine tools, cutting is in a closed state), so regardless of CNC cars, milling, drilling or boring machine, the blade is optimized for different processing materials and processes reasonable break Flute type, so that when cutting can be stable chip breaking.

(5) Tool (blade) surface coating treatment
The appearance and development of the tool (blade) surface coating technology is mainly due to the emergence and development of CNC tool. As the coating can significantly improve the hardness of the tool, reduce friction, improve the cutting efficiency and service life, so in all types of carbide indexable CNC tool more than 80% are used coating technology. After the coating of the carbide blade can also be dry cutting, which also protect the environment to achieve green cutting to create favorable conditions.