重型刀具就是指在重型或超重型机床上,进行大余量切削的刀具。刀具本身的体积大、刀具的主切削长,在切削时进给量和切削深度也大,因而对刀具结构和使用要求有别于普通中小型刀具,有人曾经怀疑,在重型机床上能否用机械夹固式的可转位刀具结构。实践证明,只要结构设计合理,是完全可以胜任的,而且机械夹固式结构的刀具,在重型机床上应用,远比焊接式刀具更优越。 Heavy-duty tools refers to the heavy-duty or super-heavy machine tool, cutting a large margin of the tool. The size of the tool itself, the main cutting tool length, cutting feed and cutting depth is also large, so the tool structure and use requirements are different from ordinary small and medium-sized knives, some people have doubted the availability of heavy-duty machine tools Mechanical clamping indexable cutter structure. Practice has proved that as long as the structural design is reasonable, is fully capable of, and mechanical clamping structure of the tool, the application of heavy machine tools, far superior welding tools.