Cutting A New Concept - Led Spot Lamps - China Led Street Lighting

Companies today can no longer just the tool manufacture and sale of cutting tools, in order to succeed, they must be consistent with the globalization of manufacturing trends, by improving the efficiency of cooperation with customers to reduce costs. In this near-instantaneous global competition after the NAFTA, post-WTO era, the world's companies are feeling the same make faster, lighter, cheaper response. In other words, they manufactured products and components included in high speed operation, due to cost pressures, better, lighter and cheaper to manufacture. Achieve these goals the best way is through the development and application of new materials, new and improved, but these are usually hard to process the material. This commercial power and a combination of technical difficulties in the automotive and aviation industry, especially prominent, and has become knowledgeable of the tool R & D department of the primary driving force.
For example, take iron, it has become the engine parts and other vehicles, farm equipment and machine tool industry on the part of the increasingly see the material. This alloy offers lower production costs and a combination of good mechanical properties. They are cheap compared with steel, while the ratio of cast iron has higher strength and toughness. But cast iron is very wearable, with rapid tool wear bad tendency of the material. This wear a large extent affected by the pearlite content. Pearlite ductile iron content of a known higher, the better its wear resistance, and its workability worse. In addition, porous ductile iron led to intermittent cutting, the more reduced life expectancy.
Can be expected, high hardness and high wear resistance of cutting material should be considered a high wear resistance cast iron. And in fact contains the extremely hard material TiC (titanium carbide) or TiCN (titanium carbonitride) thick coating in the cutting speed of 300 meters per minute when the processing of iron proved generally effective. But with the increase of cutting speed, the chip / tool combination of surface temperature is increasing. When that happens, TiC coating and the iron tends to react chemically and softening, more pressure to the crater wear resistance of the coating. Under these conditions, I hope there is a better chemical stability of the coating, such as Al2O3 (although at a lower speed than TiC hard or wear).
Chemical stability than the wear performance have become an important factor in performance boundaries, velocity and temperature is dependent on the processing of grain structure and properties of ductile iron. But usually thick coating of TiC or TiCN and only thin oxide coating is applied for ductile iron, because today most of these materials to be processed per minute cutting speed at between 150 to 335 meters. For 300 meters per minute faster than the application, people are satisfied with this material.
For optimal performance of this range, mountain high R & D and launch processing for the ductile iron material TX150. Such materials have a hard and resistance to deformation of the matrix is ideal for machining cast iron. It is very thick layer of coating from the wear of the thin layer of titanium carbonitride, and crater wear resistance of the oxide coating, the top is a thin layer of TiN. This coating process using the current production level of wear resistance and crater wear resistance of CVD coatings need all the hardness and toughness in the temperature increase in the smoothness of the chemical vapor deposition (MTCVD) process. Substrate / coating combination of performance to a higher resistance to plastic deformation and cutting edge micro-collapse capabilities, making the normal speed machining nodular cast iron ideal material.
Ceramic coating process can also reveal the iron. In the past, not the coating toughness, such as silicon nitride, and silicon carbide fiber reinforced alumina ceramics application of chemical affinity by the workpiece material limitations. But today, through the use of chip deformation processes are resistant to high heat coated tool life has increased significantly. And some early parts of this area alumina coating process using the whisker-reinforced ceramics, most of today's research activities focus on TiN coated silicon nitride. This coating can significantly widen the toughness of ceramics applications.

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