Paper Title:
Development of Small Radius Ball End Mill for Deep Precision Machining - Feasibility of Highly Accurate Deep Precision Machining with Less Vibration -
  Abstract

The machining of metal dies involves a variety of processes that include grinding, polishing and electrical discharge machining in addition to various cutting processes such as turning, boring, and milling. The precise machining of complex dies, particularly in deep machining, has largely been done by electrical discharge machining in the past, because the use of end mills and other cutting tools for such work has been difficult. In recent years, however, problems such as low machining efficiency and the creation of an affected layer have made the use of end mill cutting tools the general approach to this task. In the research reported here, our objective was to establish guidelines for the optimum design of small radius ball end mills for the deep machining of dies by systematic investigation of the cutting tool characteristics, which is to say the rotational behavior, cutting resistance, actual rate of depth of cut and machining accuracy of small radius ball end mills. Here, the guidelines obtained for ultra-deep, highly-accurate machining that is applicable to machining programs and is based on quantitative results for amounts of tool wear and tool deflection that obtained using the optimum tool shape reported earlier are presented.

  Info
Periodical
Edited by
Dongming Guo, Tsunemoto Kuriyagawa, Jun Wang and Jun’ichi Tamaki
Pages
583-588
DOI
10.4028/www.scientific.net/KEM.329.583
Citation
T. Akamatsu, K. Kitajima, Y. Matsumoto, T. Kiriyama, "Development of Small Radius Ball End Mill for Deep Precision Machining - Feasibility of Highly Accurate Deep Precision Machining with Less Vibration -", Key Engineering Materials, Vol. 329, pp. 583-588, 2007
Online since
January 2007
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