Tungsten carbide material still the first choice for cutting tool

Compared with the traditional processing methods, CNC machining tool requirements become more stringent, especially in the rigidity and durability. select tungsten carbide cutting tool and holder should consider machine tool processing capacity, the workpiece material properties, processing procedures, cutting the amount of other factors. The overall principle of tool selection is: both require high precision, high strength, good rigidity, high durability, but also requires dimensional stability, easy installation and adjustment. we should try to select a shorter handle to improve the rigidity of the tool.

At present, the metal cutting tool materials with five categories: high-speed steel, tungsten carbide, ceramics, cubic boron nitride (CBN), polycrystalline diamond.

1. According to CNC machining requirements of the tool, the choice of the general principles of tool material is possible to use carbide cutting tools. As long as the process allows the selection of carbide cutting tools, do not have high-speed steel cutting tools.

2. Ceramic tool not only for processing a variety of cast iron and different steel materials, but also for processing non-ferrous metals and non-metallic materials. The use of ceramic blades, no matter what the situation should be with the negative rake, in order not to collapse the knife, if necessary, the blade blunt. Ceramic cutting tools in the following circumstances the use of ineffective; short parts of the processing; impact of intermittent cutting and heavy cutting; beryllium, magnesium, aluminum and titanium and other single-material materials and their processing (easy to produce affinity, resulting in cutting edge Peeling and collapse knife).

3.Diamond and cubic boron nitride both are superhard tool materials, they can be used to process any hardness of the workpiece material, has a high cutting performance, high precision, small surface roughness. Generally available cutting fluid.
Polycrystalline diamond blades are generally used in the processing of non-ferrous metals and non-metallic materials.
CBN inserts are generally suitable for chilled cast iron, alloy structural steels, tool steels, high speed steels, bearing steels, and nickel base alloys, cobalt based alloys and high cobalt powder metallurgy components with hardness not less than 350 HBS.

4. From the application of the structure of the tool, CNC machining should be possible to use insert-type machine folder indexable inserts to reduce wear and tear after the replacement tool and the pre-tune time.

5. Coated tool to improve wear resistance and durability.