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 language | English |
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Title of host publication | Proceedings of the 16th International Conference of the European Society for Precision Engineering and Nanotechnology |
Subtitle of host publication | EUSPEN 2016 |
Editors | P. Bointon, Richard Leach, N. Southon |
Publisher | euspen |
Number of pages | 2 |
ISBN (Print) | 9780956679086, 0956679080 |
Publication status | Published - 1 Jun 2016 |
Externally published | Yes |
Event | 16th International Conference of the European Society for Precision Engineering and Nanotechnology - East Midlands Conference Centre, Nottingham, United Kingdom Duration: 30 May 2016 → 3 Jun 2016 Conference number: 16 https://www.euspen.eu/events/16th-international-conference-exhibition/ (Link to Conference Website) |
Conference
Conference | 16th International Conference of the European Society for Precision Engineering and Nanotechnology |
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Abbreviated title | EUSPEN 2016 |
Country/Territory | United Kingdom |
City | Nottingham |
Period | 30/05/16 → 3/06/16 |
Other | This 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. |
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