1. For the content of hardware parts suitable for NC machining, the following sequence research can be carried out during selection:
(1) The content that cannot be processed by general machine tool shall be the priority;
(2) General machine tools are difficult to process and their quality is difficult to guarantee;
(3) General machine tools have low machining efficiency and high manual operation intensity, which can be selected when there is abundant machining strength in CNC machine tools.
2. Hardware parts not suitable for NC machining
(1) It takes a long time to adjust. If the first fine datum is located and processed with the rough datum of the blank, the content of special tooling coordination is required;
(2) Processing location distribution, need to install and configure the origin repeatedly. At this time, it is very difficult to select CNC machining, and the effect is not obvious, so general machine tools can be placed for supplementary machining;
(3) The appearance of the profile machined according to certain manufacturing documents (such as sample plate, etc.). The key reason is that it is difficult to obtain data, easy to conflict with checking credentials, which increases the difficulty of programming.
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