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通过利用齿轮切削的先进技术,Forest City Gear公司(美国伊利诺伊州Roscoe市),90年代在不增加工厂面积和劳动力的情况下,使产量每年提高20％。该公司总裁Fred Young说:“我们近期的利润目标是大多数公司认为较好的毛利润目标的2倍～3倍。我们定期地将每年30％～35％的毛销售额投到新设备当中。” Forest City公司不用磨削或珩磨工序就能生产出飞机上用的高质量、无噪声齿轮。其常用的加工程序是滚齿、热处理、用磨削修正带轴齿轮,如果是孔型齿轮则用内齿珩轮进行内珩,再用整体硬质合金滚刀再滚齿。混合产品大多数是圆柱齿轮加上蜗轮,偶尔也生产如spiroids, evoloids, helicons,棘轮,多面体,花键与锯齿等特殊形状的产品。
Through the use of cutting-edge gear cutting technology, Forest City Gear (Roscoe, Illinois, USA) increased production by 20% a year without increasing plant area and labor in the 1990s. The company’s president, Fred Young, said: “Our recent profit target is 2x to 3x that most companies think is a good gross profit goal. We regularly invest 30% to 35% of gross sales per year in new equipment. " Forest City can produce high-quality, noise-free gear for use on aircraft without grinding or honing. The commonly used machining programs are hobbing, heat treatment, and correcting belt shaft gears. If it is a hole gear, internal gears are used for internal filing, and solid carbide hobs are used for hobbing. Most of the hybrid products are cylindrical gears and worm gears. Occasionally, special shapes such as spirroids, evoloids, helicons, ratchets, polyhedrons, splines and serrations are produced.