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Development of CAM System for 3D Surface Machining With CNC Lathe (Tool Path Generation Considering Acceleration)

[+] Author Affiliations
Keigo Takasugi, Yoshitaka Morimoto

Kanazawa Institute of Technology, Hakusan, Ishikawa, Japan

Katsuhiro Nakagaki, Yoshiyuki Kaneko

Takamatsu Machinery Co., Ltd., Hakusan, Ishikawa, Japan

Paper No. IMECE2014-37647, pp. V02AT02A019; 6 pages
  • ASME 2014 International Mechanical Engineering Congress and Exposition
  • Volume 2A: Advanced Manufacturing
  • Montreal, Quebec, Canada, November 14–20, 2014
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-4643-8
  • Copyright © 2014 by ASME


This study developed a method called non-axisymmetric curved surface turning (NACS-Turning) for a CNC lathe composed of a turning axis and two translation axes. The NACS-Turning method controls the three axes synchronously. This new machining method can reduce the lead time for non-circular shapes such as cam profiles or pistons for internal combustion engines. In our previous report, we presented an outline of a machining principle and a CAM system for NACS-Turning. However, at the same time, we found the problem that the X-axis slide exceeds the allowable acceleration. Therefore, it is preferable that the acceleration is verified during the cam application, and the tool path is generated within the allowable acceleration range. Therefore, this paper first describes the determination method of machinable conditions for NACS-Turning in the cam application. Next, based on the result, relationships between the acceleration of the X-axis slide and machining conditions are clarified. Finally, the experimental procedure showed that our proposed method does not exceed the allowable acceleration of the X-axis slide.

Copyright © 2014 by ASME



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