A combined linear and circular-arc approximation of curves for feedrate smoothing of CNC machining

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Publication Details

Author list: Kaewsaiha P., Dejdumrong N.

Publisher: Hindawi

Publication year: 2013

Start page: 23

End page: 26

Number of pages: 4

ISBN: 9780769550510

ISSN: 0146-9428

eISSN: 1745-4557

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84892634716&doi=10.1109%2fCGIV.2013.29&partnerID=40&md5=f73bbb2ebaee5d4e4cde9fdcc9567726

Languages: English-Great Britain (EN-GB)

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Abstract

This paper presents an estimation technique used to represent a parametric curve by a sequence of lines and circular arcs in CNC tool path generation. The advantage of this algorithm is that it can decrease the number of segments required for approximating the curve with the pre-defined tolerance value when compared to the common linearization process. A new combined algorithm also reduces a complexity of existing circular-arc approximation algorithms and can decrease computational time. The main contribution of this paper is a new algorithm provides with smoother feedrate of CNC machining controller due to the corner reduction. The experimental results are provided by the comparison of the original linearization method and this combined linear and circular-arc approximation method. ฉ 2013 IEEE.

Keywords

Combined linear and circular-arc, Curve approximation, Smoothing feedrate