By the end of 1979, We had produced the full scale forming die of the composite rotor blades of Y-2 type helicopter. The results of the NC machining show that this method is successful.

1979年末，我们加工了全尺寸y—2直升机复合材料桨叶成形凹模，从数控加工的结果看这种方法是成功的。

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K55 series high speed wedge type power chucks feature large through hole, high speed and reliable performances and so on., They are considered the best choice for full function nc turning lathes.

K 55系列高速大通孔楔式动力卡盘具有大通孔、转速高、性能可靠等特点，是全功能数控车床的最佳选择。

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Efficiency and quality of nc programming are improved with applying group technology to nc process, and making full use of such features of nc machine, as flexible process and integrated procedure.

将成组技术运用于数控加工中，充分利用数控机床的柔性加工和工序集约化的特点，提高了数控编程的效率与质量。

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