Present situation and development of mechanical blade and nc cutting tool technology

　　In recent years, the rapid development of nc machining technology has promoted the basic research of nc tool structure and the research and development of new products. The world's major manufacturers of CNC machine tools with a wide variety of tools, specifications, the number of large, often dazzling, not to the point. This is the general knowledge of CNC cutting tools and in recent years CNC cutting tools materials, structure, application and other fields of new products, technology status and development trend on its essence, in this brief description, in order to understand the grasp of the relevant CNC cutting tools new product information points.

　　A, CNC tool material new product technology and development trend

　　1. Overview:

　　In recent years, the basic research of nc tool materials and the achievements of new products are mainly applied in the high speed (super high speed), hard (including heat resistance, difficult to process), dry, fine (super fine) nc machining technology field. The research and development of new products of tool materials is progressing rapidly in the fields of superhard materials (diamond, surface modified coating materials, TiC base cermet, cubic boron nitride, Al2O3, Si3N4 base ceramics), W and Co coatings, fine particles (ultra-fine particles) cemented carbide matrix and high-speed steel containing Go powder metallurgy.

　　2. Field of super-hard materials:

　　Diamond (brazing polycrystal, single crystal) cutting tools have been rapidly used in high hardness, high strength, difficult to process non-ferrous gold (alloy) and non-ferrous metal-nonmetallic composite parts of high-speed, efficient, dry (wet) mechanical cutting industry. Its general situation is described as follows:

　　Automobile and motorcycle industry: polycrystalline, artificial single crystal diamond surface milling cutter, boring tool, turning tool, reamer, compound (combined) hole processing and other CNC tools are widely used in high strength, high hardness Si--Al alloy parts automatic production line;

　　Bamboo wood flooring, furniture industry: polycrystalline, CVD thick film deposition diamond (composite) end milling cutter, three edge shaping milling cutter, face milling cutter and other tools are widely used in high hardness composite bamboo wood flooring, furniture and doors and Windows... And other parts automatic production line;

　　Aviation, aerospace, automobile and electronic information technology industry: CVD diamond film coating CNC cutting tools (mainly the WCo class carbide cutting tools) is applied to the milling, turning, drilling, ream and economic cutting processing of high strength aluminum alloy (casting, forging), fiber - metal layer board, carbon fiber thermoplastic composite material, magnesium alloy, graphite, ceramics... And other parts to meet the high speed, high life, dry machining technical requirements. Manufacturers are constantly improving diamond coating technology, improve the bonding fastness and density of diamond film and tool matrix;

　　Fine (super fine) machining technology field: single crystal natural, artificial diamond tool is used in various precision instrument lens, mirror, computer disk, duplicator (video) magnetic drum... Fine (super fine, nanometer level) turning of the workpiece;

　　Single crystal diamond cutting tool is also used in eye corneal surgery fine cutting and printing plate fine carving... And other industries.

　　Manufacturers are continuously improving the grinding technology, precision and efficiency of diamond tools.