Microcomputer-Controlled Seven-Axis Drill Point Grinder

  • S. M. Wu
Part of the Chapman and Hall Advanced Industrial Technology Series book series (AITS)


The problems of accurate and precise drill point grinding are closely related to the performance of the drills. Over a long period of time, the drill grinding machines available today have evolved based on empirical knowledge and by trial and error. The lack of a precise way of describing the drill point is even evidenced in national and international standards where only the conventional quantities like the chisel edge angle, point angle, clearance angle, and web thickness are used to describe the point geometry. It is not difficult to show that this system is not unique, that is, many different point geometries can be described by an identical set of the above-mentioned parameters. On the other hand, it is common knowledge that even minor variations in point geometry may lead to dramatic changes in drill performance.


Parallel Port Drill Point Point Geometry Flank Surface Drill Performance 
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Copyright information

© Chapman and Hall 1985

Authors and Affiliations

  • S. M. Wu
    • 1
  1. 1.University of WisconsinMadisonUSA

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