Special Interest Group Meeting: Advancing Precision in Additive Manufacturing

19th – 21st September 2023


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Our joint Special Interest Group meeting between euspen and ASPE on Advancing Precision in Additive Manufacturing is held over 3 days and the daily programme is detailed below.  Please note that all times are shown in Central European Summer Time (CEST)


Tuesday 19th September 2023

Time (CEST)Programme
08:15 – 09:00Meeting Registration
09:00 – 09:20Welcome address: Prof. Liam Blunt, University of Huddersfield / John S. Taylor, University of North Carolina at Charlotte, US
09:20 – 09:30Welcome address from Local Host: Prof. Dominiek Reynaerts, KU Leuven, BE
09:30 – 09:55State-of-the-Art:  One: State-of-the-Art in topology optimization for additive manufacturing – Focus on precision
Matthijs Langelaar, Delft University of Technology, NL  
09:55 – 10:35

Chair: John S. Taylor


Session 1:  Applications and Design   (Part 1)

 09:55     A comprehensive review on the application of 3D-printed ferromagnetic parts in electric machines 
Matty Van Coppenolle, Ghent University, BE   

 10:10     Manufacturing constraints for Cu paste based 3D micro-extrusion       
Samanwitha Kolli, KU Leuven, BE    

 10:25     Discussion

10:35 – 11:05Coffee & Networking
11:05 – 12:05Session 1:  Applications and Design   (Part 2)

 11:05    Additive manufacturing in ASML lithography machines: benefits and quality assurance      
Radu Donose, ASML, NL 

 11:20    Adaptive resolution two-photon 3D printing with X-ray tomographic resolution optimization of ultracompact 3D microfluidics
Markus Lunzer, UpNano GmbH, AT    

 11:35     Advanced techniques in optical system fabrication with two-photon lithography
Eugenia Bosler, TU-Berlin, DE  

 11:50     Discussion

12:05 – 12:45Industry Presentations

12:05 – 12:25   ZEISS
12:25 – 12:30   UpNano GmbH

12:45 – 13:45Lunch & Networking
13:45 – 14:15Keynote One:  Neubeam Electron Beam PBF and the advantages of active charge neutralisation
Ian Laidler, Wayland Additive, UK
14:15 – 15:15

Chair: Mathieu Brochu


Session 2:  AM Process Physics & Optimization   (Part 1)

 14:15    Quantifying defect formation signatures in laser powder bed fusion through melt pool imaging and data-driven analysis           
Sebastian Larsen, Imperial College London, UK  

 14:30    Dimensional accuracy of additively manufactured AlSi10Mg parts: Study of the influence of build platform position, process parameters and repeatability
Mergim Krasniqi, Physikalisch-Technische Bundesanstalt, DE  

 14:45     Center-line-time functions and critical constants for predicting laser powder bed fusion melt pool distortion using one surface topography measurement
Jesse Redford, University of North Carolina Charlotte & National Institute of Standards and Technology, US  

 15:00     Discussion

15:15 – 15:45Coffee & Networking
15:45 – 16:45Session 2:  AM Process Physics & Optimization   (Part 2)

 15:45    Enhancing photopolymer additive manufacturing via photoinhibition: An initial study
Xiayun Zhao, University of Pittsburgh, US 

 16:00    Manufacture of designed porosities using pulsed laser powder bed fusion
Aakil Raj Lalwani, Technical University of Denmark, DK 

 16:15    Atomistic simulations of laser powder bed fusion
Johannes Roth, University of Stuttgart, DE   

 16:30     Discussion

18:00 – 21:00Networking Dinner at De Hoorn, Leuven

Wednesday 20th September 2023

Time (CEST)Programme
09:00 – 09:25State-of-the-Art Two:  Voxel level laser control for the laser powder bed fusion process
Ho Yeung, National Institute of Standards and Technology, US
09:25 – 10:25

Chair: Liam Blunt

Session 3:  AM Machine Design, Performance & Control   (Part 1)

09:25     Evaluating the shift in laser alignment during multi-laser powder bed fusion
Sam Searle, KU Leuven, BE   

09:40     Additive manufacturing machine tool qualification: Methods and insights
Jaime Berez, The University of North Carolina at Charlotte, US 

09:55     Benchmarking of an open architecture polymer laser powder bed fusion system
Christian Budden, Technical University of Denmark, DK  

10:10     Discussion

10:25 – 10:50Coffee & Networking
10:50 – 11:30Session 3:  AM Machine Design, Performance & Control   (Part 2)

10:50     External temperature and power consumption monitoring in an open architecture polymer laser powder bed fusion         
Marko Vuković, University of Pisa, IT 

11:05     Mould manufacturing by hybrid laser powder bed fusion of M789 steel on a functional base
Jitka Metelkova, KU Leuven, BE 

11:20     Discussion

11:30 – 13:00

Chair: Bey Vrancken

Rapid Fire Poster Session     (Poster Numbers)

P1.02     Influence of surface roughness parameters of additively manufactured die on the extrudates in polymer extrusion
Arhimny Hasdi Aimon, Technical University of Denmark, DK

P1.03     Adaptive masking for scaffold fabrication via high-resolution vat photopolymerization
Javier Lopez Navas, DTU Construct, DK

P1.04     Porosity in CoCr components as a function of energy density
Astrid Mex, Frankfurt University of Applied Sciences, DE

P1.05     Optimization of electron beam melting parameters for intricate vs. bulky geometries
Sasan Dadbakhsh, KTH Royal Institute of Technology, SE

P1.06     Improving surface finish in SLM additive manufacturing components by implementing remelting techniques
Liam Blunt, University of Huddersfield, UK

P1.08     Light-box set-up for the development of resins for vat polymerization additive manufacturing
Olivier Degryse, KU Leuven, BE

P1.10     Optimization of vat design in open-architecture mask-projection vat photopolymerization platform using Finite Element Analysis
Ignacy Marciniak, Technical University of Denmark, DK

P1.11     Preliminary geometric tests of an open-source metal laser powder bed fusion system 
Magnus Bolt, DTU Construct, DK

P1.12     Uncertainty analysis of an augmented industrial robot
Mojtaba Ahmadiehkhanesar, University of Nottingham, UK

P1.13     Legacy laser powder bed fusion systems and obsolescence: Upgrading control systems
David Bue Pedersen, Technical University of Denmark, DK

P1.16     In-situ fringe projection profilometry and spatter monitoring data fusion to predict mechanical properties in laser powder bed fusion additive manufacturing
Xiayun Zhao, University of Pittsburgh, US

P1.17     A single-click automated metrology demonstrator
Adam Thompson, The University of Nottingham, UK

P1.18      Investigation of focal spot blurring and its deblurring to improve the metrological structural resolution of X-ray computed tomography in the surface metrology of additively manufactured parts
Shan Lou, University of Huddersfield, UK

P1.19       Application of discrete Legendre polynomials for geometrical measurements of additive manufacturing parts using computed tomography
Ricardo Santander, KU Leuven, BE

P1.20      Dimensional accuracy of additively manufactured graded lattice structures based on X-ray microcomputed tomography            
Mahmoud Osman, Department of Mining and Materials Engineering, McGill University, CA

13:00 – 14:00Lunch & Networking
14:00 – 14:30Keynote Two:  Assessing part quality at different stages of the AM workflow
Michele Pavan, Materialise, BE
14:30 – 15:30

Chair: Liam Blunt

Session 4:  In-Process Metrology, Machine Learning & Data Fusion   (Part 1)

14:30     Towards the improvement of high-speed laser powder bed fusion using aligned datasets obtained from process monitoring based on photodiode signal variation and post-process X-ray computed tomography        
Nicolò Bonato, University of Padua, IT 

14:45     Enhancing keyhole porosity detection in laser powder bed fusion using a hybrid approach of machine learning and physics-informed knowledge
Zhengrui Tao, KU Leuven, BE   

15:00     In-situ interferometric monitoring of digital light processing based two-material vat photopolymerization
Xiayun Zhao, University of Pittsburgh, US  

15:15     Discussion

15:30 – 16:00Coffee & Networking
16:00 – 16:40Session 4:  In-Process Metrology, Machine Learning & Data Fusion   (Part 2)

16:00     Voxel-based description model of quality-related data for a holistic quality assurance in additive manufacturing
Jonas Großeheide, Laboratory for Machine Tools and Production Engineering, DE  

16:15    Waste to filaments: Turning ocean waste into filaments for extrusion-based AM
Christian Budden, Technical University of Denmark, DK

16:30     Discussion

16:40 – 18:00Laboratory Tours


Thursday 21st September 2023

Time (CEST)Programme
08:30 – 09:00Keynote Three:   Surface formation and measurement toward additive manufacturing fatigue properties prediction
Joy Gockel, Colorado School of Mines, US
09:00 – 10:00

Chair:  Jason Fox

Session 5:  Metrology & Characterization   (Part 1)

09:00     Dimensional measurements of additive manufacturing parts: A comparison of XCT and CMS using physical and simulation approaches
Weidong Liu, University of Huddersfield, UK   

09:15      Probing depth enhancements of spectral domain OCT using axicons for the inspection of additively manufactured polymer parts
Prashant Kumar, University of Huddersfield, UK   

09:30     Triangle mesh based 3D surface characterisation for AM parts inspection
Wenhan Zeng, University of Huddersfield, UK  

09:45     Discussion

10:00 – 10:30Coffee & Networking
10:30 – 11:10Session 5:  Metrology & Characterization   (Part 2)

10:30     Chromatic focus variation for surface metrology
Aalim Mustafa, Huddersfield University, UK  

10:45     Quantitative X-ray imaging at Lawrence Livermore National Laboratory (LLNL)
Massimiliano Ferrucci, Lawrence Livermore National Laboratory, US      

11:00     Discussion

11:10 – 12:10Poster Session    (Poster Numbers)
12:10 – 13:10Lunch & Networking
13:10 – 13:40Keynote Four:   Manufacturing precision parts with complex geometries using metal LPBF
Niels Holmstock, 3D Systems, BE
13:40 – 15:00 

Chair: Wim Dewulf

Session 6:   Integration of AM into a Holistic Manufacturing Process

13:40     Lead-time reduction of the design and production of thermal tables
Kevin Raedts, VDL ETG, NL  

13:55      A study on the feasibility of manufacturing high precision parts using laser powder bed fusion and finish machining
Thomas Batchelder, North Carolina State University, US  

14:10      Evaluation of surface quality and process hybridisation in electrochemical layered manufacturing process
Muhammad Hazak Arshad, KU Leuven | Flanders Make, BE  

14:25      Continuous updating of the Geometrical Digital Shadow for additively manufactured products along the process chain
Kilian Geiger, Chair of Production Metrology and Quality Management at WZL | RWTH Aachen University, DE  

14:40      Discussion

15:00 – 15:30Closing remarks by Liam Blunt, University of Huddersfield / John S. Taylor, University of North Carolina at Charlotte, US
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