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近年,几个大型重机厂在与外商合作生产和消化引进技术过程中,进口一些先进刀具。在保证加工质量、提高工效、缩短加工周期上,取得明显效果。第二重机厂在35台机床上采用先进的重型铣削刀具,包括面铣刀、玉米棒铣刀、元盘三面刃铣刀及立铣刀等可转位铣刀。一年时间,总工效净提高1.87倍,具体切削效率提高3—10倍,净增收益185万元。国际上刀具技术发展很快。例如:美、日、联邦德国的硬质合金刀片中,80—90％是可转位刀片。其中涂层刀片占40—50％,比非涂层刀片的寿命提高1—3倍。又如,国外重机厂的龙门铣床和镗铣床,已普遍采用可转位铣刀盘。不仅用于高精度切削,重切削的铣刀盘切深可达12—20mm,粗加工铣刀盘可切高锰
In recent years, several large heavy machinery factories have introduced some advanced knives in the process of introducing and cooperating with foreign manufacturers for production and digestion. In ensuring the quality of processing, improve work efficiency, shorten the processing cycle, and achieved significant results. The second heavy machine factory in 35 machine tools using advanced heavy-duty milling tools, including face milling cutter, corn cob cutter, Yuanpan three-sided cutter and milling cutter and other indexable cutter. In one year, the total net work efficiency increased by 1.87 times, the specific cutting efficiency increased by 3-10 times, the net increase of revenue of 1.85 million yuan. International tool technology has developed rapidly. For example: the United States, Japan, the Federal Republic of Germany carbide blade, 80-90% is indexable blade. Among them, the coated blade accounts for 40-50%, which improves 1-3 times longer than the uncoated blade. In another example, foreign heavy machinery factory gantry milling machine and boring and milling machine, has been widely used indexable milling cutter disc. Not only for high-precision cutting, heavy cutting cutter cut up to 12-20mm deep, rough cut milling cutter can cut high manganese