In precision part machining using CNC lathes, the requirements for cutting tools are as follows:
In precision part machining, the cutting tool largely determines the quality of the product and the productivity. Although the cutting principle of CNC turning is essentially the same as that of conventional lathes, due to the requirements of CNC machining characteristics, special treatment of the cutting edge shape is necessary when selecting cutting tools, especially when considering the geometric parameters of the parts being machined. This is to meet the processing requirements of CNC turning and to fully leverage the advantages of the CNC lathe. Nanjing Moreon Machinery specializes in precision part machining and has the capability to provide customers with a complete range of services, including solutions, material selection, process implementation, and comprehensive test data.
When performing machining, it is essential to pay attention to the requirements of CNC lathes for cutting tools. What are these requirements?
High strength. To accommodate the large cutting depth and rapid feed when rough machining or machining parts with high hardness materials, the cutting tool must have high strength. For long-shank tools (such as deep hole turning tools), they should also have better vibration resistance.
High precision. To meet the high precision and automatic tool change requirements of CNC machining, both the cutting tool and its tool holder must have high precision.
High cutting and feed speeds. To improve production efficiency and meet the demands of certain special machining processes, the cutting tool should be capable of high cutting speeds. For example, when a polycrystalline diamond composite turning tool is used for machining glass or carbon fiber composite materials, the cutting speed can reach 100 m/min or higher.
High reliability. To ensure that the machining of precision parts is not affected by damage or potential defects other than the tool itself, the tool and its combined accessories must have good reliability and strong adaptability.
Long service life. Continuous wear of the cutting tool during the cutting process will lead to changes in the machining dimensions. As the tool wears, the cutting edge (or tip) will become dull, which will increase the cutting resistance and greatly reduce the surface precision of the machined part. This will accelerate tool wear and create a vicious cycle.
Good cutting and chip removal performance. The ability to effectively break and remove chips is of great importance to ensure the smooth and safe operation of the CNC lathe.
Therefore, cutting tools used in precision part machining, whether for roughing, finishing, or special machining, should have a longer service life than those used on conventional lathes. This greatly reduces the frequency of tool replacement or grinding and tool setting, ensuring the quality of part machining and improving production efficiency. Tools with a long service life can complete at least 1-2 shifts of machining.
Nanjing Moreon Machinery specializes in manufacturing precision metal and non-metal component assemblies. The machining scope includes, but is not limited to, high-precision medical in vitro diagnostic instruments, robots, intelligent equipment, analytical instruments, optical instruments, 5G equipment, oil equipment, new energy equipment, etc. They have mature machining experience in the fields of irregular structural parts, in vitro diagnostic precision instrument accessories, high-precision shafts, and analytical instrument equipment.
