以“零件”为研究对象形成的传统编程模式只能逐一对零件进行编程，该方法费工费时。现从构成零件的几何要素出发，将零件要加工的各个部位，按某一特定的几何要素剥离成一个或多个微小单元；通过对微小单元的特性分析与制造方法研究，建立由CAD型面参数图形、CAPP工艺信息与CNC数控程序三位一体构成的制造基因，实现零件不同但几何要素相同的微小单元可调用同一制造基因编程。该方法从根本上解决了几何要素相同的不同零件的重复设计、重复编程的问题，实用价值明显。%The traditional programming mode formed with“part” as the research object is time and labor intensive because it only can program for parts one by one. Based on the geometric elements of constituting parts, each position of the part to be machined is decomposed into one or more micro units in accordance with specific geometric elements; through analyzing the characteristics of micro unit and researching the machining method, the trinitarian manufacturing gene which combines CAD profile parameters graphic, CAPP process information, and CNC numerical control program is established, thus different parts but with the same micro unit of geometric elements may call the same manufacturing gene for programming. The problem of repeat design and repeat programming for different parts with same geometric elements is solved fundamentally, so the practical value is significant.
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