Materials promote the development of tool technology

The basic requirement of machining is to produce high quality products quickly and cheaply.This requirement is closely related to the realization of high precision, high efficiency and low cost.In recent years, cutting technology has developed rapidly in the fields of high speed milling and micro shape cutting.With the development and application of new engineering materials and further miniaturization and precision of components, tool manufacturers are actively developing efficient tools for various processing purposes.

Driven by the investment and export growth of manufacturing equipment centered on the automobile industry, the demand for tool products is increasing, and tool manufacturers are expanding their production capacity at home and abroad.With the increasing global cost competition, users are demanding high added value and high efficiency production.In order to adapt to the development trend of rapid production with short delivery time and low cost, the key is to use the minimum production equipment to realize long time automatic operation processing.An effective way to rationalize the production site is to introduce composite cutting technologies that integrate multiple processes and high-speed milling machines that can cut workpiece materials, including hardened steel, at high speeds and with high precision.

Advanced cutting technologies such as compound cutting and high speed hard milling are the core to realize the production mode of processing parts with the minimum efficient, fast and flexible production equipment (suitable for different varieties and different batches of production).However, any cutting method is inseparable from the selection of appropriate cutting tools and determine the reasonable tool use technology.In recent years, with the rapid development of machine tools, the progress of high-precision machining technology and the increase of cutting of hard machining materials, the progress of tool materials (ceramics, cemented carbide, TiC/TiN ceramics, cemented carbide coating, etc.) is also very significant.Taobao women's summer dress new eye cream whitening moisturizing face cream recommended men to wrinkle eye cream essential oil facial mask which good thin body cream what brand makeup brush to use

Changing tool materials

Tool material must meet the following conditions: high hardness, wear resistance, high strength of resistance to cutting and vibration impact, good high temperature red hardness, easy to heat treatment and machining molding.In tool materials, hard alloys are characterized by a low reduction in hardness at high temperatures.Among them, the coated cemented carbide is based on tungsten carbide and coated with a layer or multiple layers of titanium carbide (TiC), titanium nitride (TiN), alumina (Al2O3) and other thin film materials.Because the coating material is more resistant to melting, wear and heat than the substrate, it can be cut faster than the substrate.In addition, the coating can extend the service life of the tool due to its low friction coefficient.

The development of high speed milling technology requires the tool material to have good wear resistance, heat resistance and strong toughness.The average particle size of some superfine cemented carbide materials is below 1 m, which makes the toughness and flexural strength of the tool matrix increase obviously.

Composite coating is the combination of a variety of coating materials, layer after layer of film coating, in order to improve the cutting performance of the tool.In addition to titanium carbide and titanium nitride suitable for high-speed cutting of steel, diamond and cubic boron nitride are now used as coating materials.Recently, silicon-based nano-coated tools with nanometer level fine grain coating have been developed, which can be used for high speed cutting of high hardness steel and high performance processing of mild steel.