Special Interest Group Meeting : Structured & Freeform Surfaces
28th – 30th September 2022
Programme
Please note that all times are shown in British Summer Time (BST)
Wednesday 28th September 2022
Time | Programme |
08:00 – 08:30 | Tutorial Registration |
08:30 – 10:00 | Advances in surface metrology (Part 1) Dr Yang Yu, Taylor Hobson Ltd, UK |
10:00 – 10:30 | Coffee & Networking |
10:30 – 12:00 | Advances in surface metrology (Part 2) |
Time | Programme |
12:45 – 13:30 | Meeting Registration |
Time | Programme |
13:30 – 13:40 | Welcome Address – euspen HQ & Prof. Liam Blunt, University of Huddersfield, UK |
13:40 – 13:50 | Welcome from Local Host – Dr Zhen Tong, University of Huddersfield, UK |
13:50 – 14:20 | Keynote One: Mind the gap! What stands between optical manufacture and its automation? Prof. David Walker, University of Huddersfield, UK |
14:20 – 15:05 Chair: Oltmann Riemer
| Session 1: Precision Freeform Surfaces (Part 1) 14:20 Magnetic field-assisted batch polishing of freeform surfaces 14:35 Surface engineering for ultra-precise optical surfaces on a large scale using RF-excited ion beam etching 14:50 Development of Gaussian pseudo-random micro-milling path for eliminating mid-to-high frequency errors on repaired surfaces of KH2PO4 optic to improve its laser damage resistance |
15:05 – 15:30 | Coffee & Networking |
15:30 – 16:30 | Session 1: Precision Freeform Surfaces (Part 2) 15:30 Diffusion filter for 3D freeform surface characterisation 15:45 Manufacturing of precise surfaces by pendulum stroke grinding on milling machines 16:00 Optical functionality simulation through traceable characterization of optical components 16:15 A dislocation density-based multiscale simulation model for ultra-precision cutting process |
16:30 – 17:00 | Q&A and Discussion |
18:30 – 21:30 | Networking Dinner – 315 Restaurant |
Thursday 29th September 2022
Time | Programme |
09:00 – 09:30 | Keynote Two: Advances in ultra-precision machining of structured optical surfaces Assoc. Prof. A. Senthil Kumar, National University of Singapore, SG |
09:30 – 10:30
Chair: Zhen Tong | Session 2: Large-scale Surface Structuring (Part 1) 09:30 Design of a long stroke fast tool servo with application to microstructured surfaces fabrication 09:45 Roll-to-roll fabrication of biomimetic surfaces 10:00 Time-frequency analysis of vibration signals for monitoring the process status in ultra-precision machining of complex components 10:15 Investigation on a NURBS based approach to modelling and analysis of freeform surfaces with the application to design and ultraprecision machining of vari-focal lenses |
10:30 – 11:00 | Coffee & Networking |
11:00 – 11:30 | Session 2: Large-scale Surface Structuring (Part 2) 11:00 Modulated amplitude ultrasonic vibration cutting of microstructured surface with image-display function 11:15 Surface structuring of ceramics using laser-profiled grinding wheels with assist of embedded metrology |
11:30 – 12:00 | Q&A and Discussion |
12:00 – 12:45
Chair: Guido Tosello
| Poster Session P1.01 Comparison of graphite, copper and tungsten-copper as materials for the precision-milling of die-sinking-electrodes P1.02 Validation of the oxide layer quality of surface-modified tool electrodes by EDM-drilling process P1.03 Development of a beam polarization control for automated alignment of submicrometric structures P1.04 The use of binderless carbide as a milling tool to increase process reliability and economic efficiency P1.05 The measurement & characterisation of porous coatings through XCT and the influence of voxel size choice P1.06 Simulation of removal processes for large surfaces P1.07 Verification of the approximate Beckmann-Kirchhoff model on a series of sinusoidal profiles P1.08 Determination of the contribution of topography fidelity on the measurement of a tilted optical flat using a virtual instrument P1.09 Alterations of exoskeletal surface roughness and chitin synthase 2 gene expression on Macrophthalmus japonicus crabs after hexabromocyclododecane exposure P1.10 Nano-surface machining characteristics of silicon nitride ceramic for ball bearing using ELID grinding P1.11 Microscale surface structure analysis of additively manufactured Ti alloy parts P1.12 Effect of different lumen profiles during femtosecond laser machining on injection moulded hollow polymer microneedles |
12:45 – 13:45 | Lunch & Networking |
13:45 – 14:15 | Keynote Three: Surface texture analysis of complex additive manufactured surfaces François Blateyron, Digital Surf, FR |
14:15 – 15:15
Chair: Liam Blunt | Session 3: Metrology and Surface Characterization 14:15 SURF-FIT: A universal fitting method for structured surfaces 14:30 Flexible interferometric form measurement with multiple light sources 14:45 Features extraction on 3D-printed geometries using point cloud semantic segmentations 15:00 An Intelligent Surface Denoiser: A DnCNN-based Approach for freeform structured surface |
15:15 – 15:35 | Q&A and Discussion |
15:35 – 15:45 | Commercial Session
|
15:45 – 16:10 | Coffee & Networking |
16:10 – 17:10 | Laboratory Tours |
FREE EVENING |
Friday 30th September 2022
Time | Programme |
08:30 – 09:00 | Keynote Four: Injection moulding of structured surfaces Prof. Ben Whiteside, University of Bradford, UK |
09:00 – 09:25 | State-of-the-art: Manufacturing of freeform and micro structured surfaces Christian Wenzel, Innolite GmbH, DE |
09:25 – 09:55
Chair: Ben Whiteside | Session 4: Structured Surfaces to Affect Function 09:25 Optimization of diamond machined gratings for low light scattering and highest diffraction efficiencies 09:40 Development of sub-micron patterned polymeric surfaces that enhance cell adhesion for orthopaedic applications |
09:55 – 10:15 | Q&A and Discussion |
10:15 – 10:45 | Coffee & Networking |
10:45 – 11:15
Chair: Ben Whiteside | Session 5: Replication Techniques and Additive Manufacturing 10:45 Embossing of concave micro-structures in metals as moulds for the replication of micro-lens arrays 11:00 Investigating the deviations between micro-injection moulding experiments and simulations of micro-structured micro-optical components |
11:15 – 11:45 | Q&A and Discussion |
11:45 – 12:00 | Closing remarks by Prof. Liam Blunt, University of Huddersfield, UK |
12:00 – 12:45 | Lunch & Networking |