| 2. | Nc reduces the amount of non - chip - producing time by selecting speeds and feeds , making rapid moves between surfaces to be cut , using automatic fixtures , automatic tool changing , controlling the coolant , in - process gauging , and loading and unloading the part
Nc （产品简称）通过选择速率，高速转变切割面，自动改变工具，控制冷却剂，减少了这些不必要的非工作时间，工作中划定规格，和装卸降低了这些不必要的非制造时间。 |
