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发明公开
CN107891173A 整体PCD圆形杆状切削刀具及其制备方法 无效 - 驳回

整体PCD圆形杆状切削刀具及其制备方法
摘要：
本发明提供了一种整体PCD圆形杆状切削刀具，它包括硬质合金刀柄和整体PCD圆形杆状刀头；所述整体PCD圆形杆状刀头包括硬质合金衬底层和设置在所述硬质合金衬底层一侧的金刚石层，所述整体PCD圆形杆状刀头上开设有排屑槽，所述排屑槽自所述金刚石层延伸至所述硬质合金衬底层的中部。本发明还提供一种制备所述整体PCD圆形杆状切削刀具的方法，包括制备PCD复合圆棒胚料、制备整体PCD圆形杆状刀头和焊接成型步骤。该方法能制备出结构复杂的整体PCD圆形杆状切削刀具，提高了PCD刀具的加工精度、延长了刀具的使用寿命。
摘要（英）：

The invention provides an integral PCD round rodlike cutting tool. The integral PCD round rodlike cutting tool comprises a hard alloy knife handle and an integral PCD round rodlike tool bit; the integral PCD round rodlike tool bit comprises a hard alloy substrate layer and a diamond layer arranged on one side of the hard alloy substrate layer; a chip removal groove is formed in the integral PCD round rodlike tool bit; and the chip removal groove extends from the diamond layer to the middle of the hard alloy substrate layer. The invention also provides a method of preparing the integral PCD round rodlike cutting tool. The method comprises the following steps: preparing a PCD compound round bar blank; preparing the integral PCD round rodlike tool bit; and carrying out welding and forming. The method can be used for preparing the integral PCD round rodlike tool bit which is complex in structure, and the processing precision of the PCD cutting tool is improved and the service life of the cutting tool is prolonged.

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