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无论是枪钻、内排屑钻或喷射钻头的使用寿命除了与刀具材料、几何角度、切削用量、切削材料以及切削油的压力、温度和过滤精度等因素有关以外,钻头与其导向套的间隙大小也有非常密切的关系。这种关系在一般钻削工序中往往是不太为人们所注意的。虽然在制造钻头和导向套时控制了它们之间的尺寸,保证了一定的间隙,但在使用过程中有的却认为是粗加工工序,工件的光洁度和精度没有高的要求,所以也就不太注意其磨损程度。
Whether it is a gun drill, the life of a chip drill or a jet drill In addition to the cutter material, geometry, cutting, cutting materials and cutting oil pressure, temperature and filtration accuracy and other factors, the bit and its guide sleeve gap size There is also a very close relationship. This relationship is often less noticeable in general drilling operations. Although the manufacture of the drill bit and the guide sleeve to control the size between them to ensure a certain gap, but in the course of some are considered roughing process, the workpiece finish and precision is not high, so do not Too much attention to its degree of wear.