Carbide cutting tools industry trends.

With the progress of science and technology, we are in a rapid development period, advanced manufacturing technology application of cnc machine tools, greatly reduce the auxiliary time of parts processing, greatly improved productivity. When general aviation parts processing, shorten the auxiliary time, cutting accounted for the proportion of time increases accordingly, in order to further improve the productivity of machine tools, must increase cutting speed, this also is in recent decades the main reason for the rapid development of high speed cutting technology. High-speed machining the earliest light alloy is mainly used in the aviation industry, has now become a aviation manufacturing industry to improve processing efficiency and quality, the main way to reduce the processing cost.

In aviation parts processing, high speed cutting is a large number of applications, mainly has the following several reasons:

(1) in order to maximize the weight loss and meet other requirements, many of the artifacts, wall panels, "overall manufacturing method", namely remove allowance on large pieces of blank, the formation of thin wall, fine steel structural parts, need to remove a large number of metal materials, cutting time lead to take parts total production time proportion is very big, so one of the ways to improve productivity is to adopt the high-speed cutting processing.

(2) aircraft parts of complex structure, high accuracy, stiffness of thin-walled parts, thin steel structure is poor, try to reduce the radial cutting force and thermal deformation of machining, only using high-speed machining can meet these requirements.

(3) the difficult-to-machine materials, such as high temperature nickel base alloy, titanium alloy, high strength structural steel adopted by modern aviation products, the material strength, high hardness, impact resistance, easy processing of hardening, high cutting temperature and tool wear serious, belong to the hard processing material. Generally adopt the low cutting speed for processing, if the high speed cutting, not only can greatly improve the productivity and can effectively reduce the tool wear, improve the quality of the surface of the parts. High-speed machining is different from the traditional machining technology of machining mechanism and the application advantages, it is a conceptual change in nc machining process. According to the material and structure characteristics of aviation products, in order to realize high speed machining must be advanced in order to ensure the high speed cutting tools. High-speed cutting tools must have good wear resistance and high strength and toughness, advanced cutting tool materials, excellent geometric structure parameters of cutting tool coating technology, reasonable and highly dynamic balance system, safe and reliable way of clamping, as well as the high concentricity of the blade precision and so on.

The development direction of cutting tool materials and applications
At present, in the field of aircraft manufacturing, high speed steel cutting tools account for about 60% of the total amount of all kinds of cutting tool always, cemented carbide cutting tools account for about 35% of the total amount of cutting tool, superhard cutting tools (cubic boron nitride, diamond) accounted for less than 5% total all cutting tools and in the future, as the aviation new materials constantly emerging, the increase of hard cutting, dry cutting application, carbide cutting tools, coated tools, ceramic cutting tool, cubic boron nitride cutting tool and the proportion of polycrystalline diamond cutting tools will be greatly increased.

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