A local tool path smoothening scheme for micromachining

Wenbin Zhong, Wenlong Chang, Luis Rubio, Xichun Luo

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Linear and circular representations are widely used to define tool paths, however, the tangency discontinuity between the linear and circular segments leads to large fluctuations in velocity and acceleration, as a result, the machining accuracy and efficiency are degraded. It becomes the key problem in some micromachining situations where the quality of freeform surfaces is critical, such as moulds and knee implants, etc. This research aims to develop a local tool path smoothening scheme to achieve C2 continuity at the transition positions. This scheme applies to sections consisting of high density of short segments. These segments will be approximated by cubic B-splines. The approximation is carried out within the specific error tolerance. High frequency energy to be injected into the servo loop control system is greatly reduced by the C2 continuity. The proposed scheme is feasible to be implemented in real- Time microcontrollers due to the computational efficiency and reliability of B-spline algorithms.

Original languageEnglish
Title of host publicationProceedings of the 16th International Conference of the European Society for Precision Engineering and Nanotechnology
Subtitle of host publicationEUSPEN 2016
EditorsP. Bointon, Richard Leach, N. Southon
Publishereuspen
Number of pages2
ISBN (Print)9780956679086, 0956679080
Publication statusPublished - 1 Jun 2016
Externally publishedYes
Event16th International Conference of the European Society for Precision Engineering and Nanotechnology - East Midlands Conference Centre, Nottingham, United Kingdom
Duration: 30 May 20163 Jun 2016
Conference number: 16
https://www.euspen.eu/events/16th-international-conference-exhibition/ (Link to Conference Website)

Conference

Conference16th International Conference of the European Society for Precision Engineering and Nanotechnology
Abbreviated titleEUSPEN 2016
CountryUnited Kingdom
CityNottingham
Period30/05/163/06/16
OtherThis event offers the possibility to see latest advances in traditional precision engineering fields such as metrology, ultra precision machining, additive and replication processes, precision mechatronic systems & control and precision cutting processes.
Internet address

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