公开(公告)号：US4591303A

公开(公告)日：1986-05-27

申请号：US562584

申请日：1983-12-13

申请人： Yoshihiro Sato ,  Kenichi Sasaki ,  Tatsuo Miyamoto ,  Hideo Tsuzaka

发明人： Yoshihiro Sato ,  Kenichi Sasaki ,  Tatsuo Miyamoto ,  Hideo Tsuzaka

IPC分类号： B23B51/04 ,  B23B41/02

CPC分类号： B23B51/0466 ,  Y10S408/703 ,  Y10S408/713 ,  Y10T408/8957 ,  Y10T408/909 ,  Y10T408/90993

摘要： A plurality of cutting tips are mounted on the distal end of the cylindrical main body of a drilling tool for performing trepanning. These tips are disposed along the circumferential direction of the main body and equidistantly spaced apart from one another. The force, which is produced by all of the cutting tips and acting at right angles to the axis of the main body, is smaller than the component of the cutting force, which is produced by each tip and acting at right angles to the axis of the main body. The cutting widths of the tips in the radial direction of the main body are substantially equal. One of the tips, which is located at an intermediate position in the radial direction, has a V-shaped leading portion.

摘要翻译： PCT No.PCT / JP82 / 00413 Sec。 371日期：1983年12月13日 102（e）1983年12月13日的PCT日期为1982年10月19日。多个切割尖端安装在钻孔工具的圆柱形主体的远端上，用于执行扫描。 这些尖端沿着主体的圆周方向设置并且彼此等间隔开。 由所有切割尖端产生并且与主体的轴线成直角的力小于由每个尖端产生并且与主体的轴线成直角的切割力的分量 主体。 尖端在主体的径向上的切割宽度基本相等。 位于径向中间位置的尖端中的一个具有V形引导部分。