Ultraprecision Machining of Hybrid Freeform Surfaces Using Multiple-Axis Diamond Turning

This thesis focuses on producing hybrid freeform surfaces using an advanced diamond-turning process, understanding the generation of surface accuracies (form errors) and how the choice of cutting strategies affects these, as well as simplifying the complications of generating cutting paths for such freeform surfaces. The breakthroughs behind this thesis are the development of novel, multiple-axis, diamond turning techniques to overcome the limitations of conventional diamond turning processes, an analytical model to optimize the generation of ultraprecise freeform surfaces, and an add-on tool path processor for CAD/CAM software solutions. It appeals to researchers and scholars with a strong machining background who are interested in the field of manufacturing ultraprecise freeform surfaces or in the field of optimizing ultraprecision machining processes.

Demonstrates advanced, multi-axis, diamond turning techniques to overcome the limitations of a conventional diamond-turning processes Explores special new techniques for producing hybrid free-form surfaces Provides know-how and tips for achieving ultraprecise free-form surfaces Includes supplementary material: sn.pub/extras

Autorentext

Dennis Neo Wee Keong obtained his bachelors degree in Mechanical Engineering from National University of Singapore in Singapore in 2010. He continued to pursue his doctoral studies at National University of Singapore in 2011, under the supervision of Prof A. Senthil Kumar and Prof Mustafizur Rahman, and after an exciting 4 years, graduated with a PhD in 2015. Currently, he is Research Fellow under the same research group focusing on the challenges in the deep-hole drilling/large format machining of difficult-to-machine materials. His research interests are in ultraprecision machining of freeform surfaces using multiple-axis ultraprecision machining techniques, such as fast tool/slow slide servo, with proper analytical of surface errors to optimize process.

Inhalt

Introduction.- Literature review.- Initial Development of CAD/CAM Technologies.- Development of Hybrid FTS/SSS Diamond Turning.- Novel Surface Generation of Complex Hybrid Freeform Surfaces.- Development of Surface Analytical Model for Accurate Hybrid Freeform Surfaces.- Integration and Implementation.- Conclusions and Recommended Future Works.