图3 - 2说明了在一些普通切削成型加工工艺中，切削刀具和工件之间必要的关系。
Figure 3-2 illustrates the necessary relationship between cutting tool and the workpiece for chip formation in several common machining processes.
金属加工展区：金属切削机床、金属成型机床、特种加工机床。
Metal processing exhibition area: metal cutting machine tool, metal shaping machine tool, special processing machine tool.
采用模具成型的工艺代替传统的切削加工工艺，可以提高生产效率，保证零件质量，节约材料。
Casting process used to replace traditional machining processes, can improve production efficiency, and ensure part quality, conservation materials.
塑料有良好的加工性能，易成型，如：压、挤、吹、易切削、易焊接。
Plastic has very good nature for processing. It is easy to shape such as press, crush, blow, being cut or connected.
塑料有良好的加工性能，易成型，如：压、挤、吹、易切削、易焊接。
Plastic has very good nature for processing. It is easy to shape such as press, crush, blow, being cut or connected.
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