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发明公开
CN108472745A 具有断屑器的钻头和在钻头中激光切割断屑器的方法 有权

具有断屑器的钻头和在钻头中激光切割断屑器的方法
摘要：
一种用于钻的钻头，包括至少一个排屑槽和至少一个切削刃(20，22)，所述排屑槽具有前刀面(32)，所述前刀面包括排屑槽边缘，并且所述切削刃具有沿着所述切削刃的长度的至少一部分延伸的轮廓，所述前刀面从所述切削刃延伸。在所述前刀面中形成断屑器(40)，所述断屑器是位于所述切削刃附近的连续的凹槽，该凹槽具有起始端和开口到所述排屑槽边缘的出口端，所述起始端的深度小于所述凹槽的所述出口端的深度，其中所述凹槽在所述起始端处的形状不同于所述凹槽在所述出口端处的形状。
摘要（英）：

A drill bit for a drill includes at least one flute having a rake face including a flute edge and at least one cutting edge having a profile that extends along at least a portion of a length of the cutting edge, the rake face extending from the cutting edge. A chip breaker formed in the rake face, the chip breaker being a continuous groove located adjacent the cutting edge, the groove having a starting end and an exit end opening into the flute edge, the starting end having a depth that is less than a depth of the exit end of the groove, wherein a shape of the groove at the starting end is different from a shape of the groove at the exit end.

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