Method to decide paths and postures of flat end mill for 5-axis control machining based on minimum cusp height

Tatsuya Hokkyo, Hideki Aoyama, Noriaki Sano

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Generally, ball end mills are used for free-form surface machining. When machining curved surfaces with large curvature change using ball end mills, it is necessary to use tools with larger curvature of the cutting edges than the maximum curvature of the surface and minute pick feeds or to change tools for fitting the curvature of one part of the surface. However this causes poor machining efficiency. The curvature of the cutting edge of a flat end mill can be fitted to the curvature of a point on machined surfaces by adjusting the tool posture. Therefore, flat end mills can efficiently cut almost all curvature curved surfaces without tool change. This paper proposes two methods for deciding tool posture and tool path for 5-axis control machining based on minimum cusp height. To decide the tool path, one method defines tool paths along isoparametric curved lines, while the other defines tool paths along curved lines along the minimum curvature direction. The basic system was constructed based on the proposed method, and the effectiveness of the proposed method was verified.

Original languageEnglish
Title of host publicationEmerging Technology in Precision Engineering XIV
PublisherTrans Tech Publications Ltd
Pages380-385
Number of pages6
ISBN (Print)9783037855096
DOIs
Publication statusPublished - 2012 Jan 1
Event14th International Conference on Precision Engineering, ICPE 2012 - Hyogo, Japan
Duration: 2012 Nov 82012 Nov 10

Publication series

NameKey Engineering Materials
Volume523-524
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795

Other

Other14th International Conference on Precision Engineering, ICPE 2012
CountryJapan
CityHyogo
Period12/11/812/11/10

Keywords

  • 5-axis machine
  • CAM
  • Minimum cusp height
  • Tool path
  • Tool posture

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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