Cobalt Drill Bit

Cobalt Drill Bit

To Improve Machine Efficiency, From Machine Tools And Cutting Tools

With the development of China's manufacturing industry has maintained rapid development and now the total after the United States and Japan, ranking third in the world, and in development is picking up speed with the international standards step, using a large number of NC and efficient machine tools and advanced knives, markedly enhanced the production and processing technology and production efficiency. Some of the advanced manufacturing industry, such as the auto industry a large number of the introduction of the advanced modern production technology, power plant equipment manufacturing, aerospace manufacturing, large-scale and high-precision mold manufacturing, through the introduction of technology and independent development, the use of advanced cutting technology and efficient tool, which effectively improved processing technology and labor productivity, improve the competitiveness of enterprises.

China's manufacturing industry "big but not strong", many companies manufacturing technology is not high, severely hampered China's manufacturing industry further development. So far, the mechanical industry, the use of modern cutting techniques and high-performance advanced tool to improve productivity and reduce awareness of the cost is very low, so in our country, modern cutting techniques and efficient advanced tool for application development is uneven, and many enterprises are still only Note that rely on cheap labor to reduce costs, without attention by increasing processing technology to improve production efficiency.

In recent years, China's machine tool production developed rapidly, manufacturing of machine tools possession in the world ahead, ranking first, but the tool industry is lagging far behind. An advanced high-performance machine with less than a high-performance advanced tools, still using the traditional standard knives, cutting backward technology, so that highly efficient machine tools, processing efficiency is not play, and seriously affect the production efficiency and restricts the manufacturing sector modernization.

My cutting techniques and tool industry development has been constrained, in large part because of business-tool to use to stay in the backward traditional concept that the introduction of low-cost tool to control costs, rather than using efficient tools to improve processing efficiency to reduce costs. Many businesses spend most of the price to buy high-performance CNC machine tools, but could not bear to spend much money to buy advanced and efficient tool, resulting in cutting backward technology, machining efficiency is very low, actually saved a little money, but a waste of expensive machine tools working hours, worth the candle .

Modern cutting technology and efficient advanced cutting tools in manufacturing to increase productivity the most important, the most active one of the factors. In developed countries, extensive use of high-performance advanced cutting tools, the average tool costs about manufacturing costs of 4%, while China's manufacturing industry due to the use of inexpensive traditional tools, the average tool costs less than the manufacturing cost of 3%, resulting in China's machinery industry production far more efficient than foreign. According to statistics, high-efficiency advanced cutting tools, tool costs may be increased by 50% or more, will part the cost of an increase of about 1%, but the high-performance advanced cutting tools can significantly increase machining efficiency, it is possible to make part the cost of production decreased by 10% to 15 %, the use of high-performance advanced tool cost-effectiveness is extremely significant.

The use of modern cutting technology to improve processing efficiency effect is very obvious. Such as the current aviation industry in the use of a new type of aluminum alloy as a whole thin-walled structures to replace the original welding, riveting, assembly components, processing of these aluminum alloy as a whole thin-walled structures require milling to a large number of metals, using high-speed cutting of new technology to make processing more efficient times. Harbin Steam Turbine plant in China's first 600,000 kilowatts of supercritical steam turbine group, the high-alloy steel on the processing of large-diameter deep-hole, using Kennametal's a new type of drill bit, so that processing of a hole working hours from 6.7 hours to 0.5 hours to solve production critical issues. In the processing of high-strength oil pipe thread, the original and three tooth comb knife turning, and later developed a new three three-tooth comb knife sets of tooth technology to improve processing efficiency times.

New materials, tools used to make cutting efficiency is greatly improved, high-cobalt high vanadium high speed steel cutting tools durability than ordinary high-speed steel will increase by 1.5 ~ 3 times. The strength of powder metallurgy high-speed steel can be increased by 20% to 30%, toughness increased by 1.5 to 2 times, and reliability than conventional high-speed steel markedly improved, and foreign in the processing center has been the widespread use of such a powder of small high-speed steel drill bits, Taps and cutter and so on, but China is still seldom used.

Abroad in recent years developed a variety of new components, new grades of carbide developed for high strength and toughness of 0.5 ~ 1μm ultrafine particles of the alloy, has developed a variety of new coated carbide to carbide The cutting significantly increased, instead of some of the past only with high-speed steel of the more complex tool. Ceramics, cubic boron nitride, and polycrystalline diamond and other superhard materials, tools, foreign applications on a wide cutting speed than carbide increased several times, greatly enhanced processing efficiency, in Germany, about 70% of the castings with ceramic tooling Japanese ceramic tool's annual consumption accounted for tool of the total 8% ~ 10%, while China's super-hard materials, tools used, little.
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