Analysis of Clearance and Rake Angles Along Cutting Edge for Multifacet Drills (MFD)

[+] Author and Article Information
Horng-Tsann Huang, Cheng-I Weng, Chao-Kuang Chen

Department of Mechanical Engineering, National Cheng Kung University, Tainan, Taiwan, ROC

J. Eng. Ind 116(1), 8-16 (Feb 01, 1994) (9 pages) doi:10.1115/1.2901814 History: Received July 01, 1988; Revised June 01, 1992; Online April 08, 2008


Mathematical formulations for the working normal clearance and rake angles along the cutting edges of a multifacet drill (MFD) are developed. The effect of point geometrical parameters of an MFD on the above two angles are described by computer plottings which are the basis for optimizing an MFD. A more precise geometrical model considering a transitional region between the inner cutting edge and are cutting edge is also presented in this paper.

Copyright © 1994 by The American Society of Mechanical Engineers
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