Generation of NC program for realizing high speed feed rate of cutting tool

Shintaro Sakurai, Hideki Aoyama, Noriaki Sano

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

1 Citation (Scopus)

Abstract

As the feed rate of cutting tools is influenced by the quality of NC programs, this causes two problems when cutting freeform surfaces using NC machine tools, one is the feed rate does not reach the specified value, and the other is the quality of the machined surface decreases due to the large acceleration and deceleration of the control axes. One reason for these problems is that the method to generate cutter location data does not take into consideration the sampling time of the NC controller. To improve these problems, the approximation of offset curves with a series of circular arcs has generally been proposed. But conventionally, circular arc interpolation algorithms are complicated and not rational. So, in this study, we proposed two simple NC program generation methods. (1) Approximate the offset form with circular arcs based on the location of the center of curvature. (2) Make the distance between the cutter location points of the NC data an integral multiple of the "feed rate command F × sampling time T". We also confirm the effectiveness of the proposed methods by simulations and experiments.

Original languageEnglish
Title of host publicationEmerging Technology in Precision Engineering XIV
Pages398-403
Number of pages6
DOIs
Publication statusPublished - 2012 Dec 11
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

Other

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

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Keywords

  • CAM
  • Cutting tool path
  • High speed feed rate
  • NC servo mechanism
  • Sampling time

ASJC Scopus subject areas

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

Cite this

Sakurai, S., Aoyama, H., & Sano, N. (2012). Generation of NC program for realizing high speed feed rate of cutting tool. In Emerging Technology in Precision Engineering XIV (pp. 398-403). (Key Engineering Materials; Vol. 523-524). https://doi.org/10.4028/www.scientific.net/KEM.523-524.398