Optimal Archimedes' spiral interpolation for cutter path generation in NC machining of noncircular contours

Hua Qiu*, Akio Kubo, Zi Ye Li, Yong Yue

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

In NC machining of noncircular contours with a rotation table, the cutter is fed along a straight line intersecting perpendicularly the rotation axis of the work piece. In this situation, the cutter path usually consists of a series of Archimedes' spiral segments. This paper proposes an optimal interpolation approach of Archimedes' spiral segments to generate the cutter path for machining noncircular contours. The number of segments for the cutter path resulted from the approach is the fewest under the condition that the interpolation accuracy completely satisfies the specified limit value. It has been also evidenced that the profile error of the machined contours corresponding to the cutter path is perfectly controlled within the specified interpolation accuracy limit. The effectiveness of the proposed approach has been sufficiently confirmed by applying it to machining a disc cam and an algebraic spiral type of scroll wrap.

Original languageEnglish
Pages (from-to)69-82
Number of pages14
JournalInternational Journal of Advanced Manufacturing Technology
Volume36
Issue number1-2
DOIs
Publication statusPublished - Feb 2008
Externally publishedYes

Keywords

  • Archimedes' spiral
  • Cutter path generation
  • Optimal interpolation

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