Special Interest Group Meeting: Advancing Precision in Additive Manufacturing

16th – 18th September 2019

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Ecole Centrale de Nantes
1 rue de la Noë, 44321 Nantes Cedex 3, France

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:


Monday 16th September 2019

09:00 – 09:30Registration & Refreshments
09:30 – 12:30Tutorial: Surface metrology for additive manufacturing
Prof. Richard Leach, University of Nottingham, UK


13:00 – 13:30Registration & Coffee
13:30 – 13:40Welcome: Prof. Enrico Savio, euspen President
13:40 – 13:50Welcome: Prof. Richard Leach & Dr John Taylor, Meeting Chairs
13:50 – 15:10

Co-Chair:  Ann Witvrouw; Filippo Zanini



Session 1: PAM^2 presentations (Part 1)

13:50     Elevated edges of metal parts produced by Laser Powder Bed Fusion: characterization and post-process correction
Jitka Metelkova, KU Leuven, BE

14:10     Automated characterisation of multi-view fringe projection system for three-dimensional measurement of additively manufactured parts
Amrozia Shaheen, University of Nottingham, UK

14:30    Improving metal additive manufacturing part design and final part precision using feedback from X-ray computed tomography
Markus Baier, University of Padova, IT

14:50     Investigation on precision of laser powder bed fusion process using statistical process control
Lokesh Chandrabalan, Nuovo Pignone Tecnologie, IT

15:10 – 15:25Coffee & Networking
15:25 – 16:25Session 1: PAM^2 presentations (Part 2)

15:25     Influence of the particle size distribution on surface quality of Maraging 300 parts produced by Laser Powder Bed Fusion
Mirko Sinico, KU Leuven, BE

15:45     Improving the dimensional accuracy of downfacing surfaces of additively manufactured parts
Umberto Paggi, 3DSystems, BE

16:05    ANN-based modelling of dimensional accuracy in L-PBF
Amal Charles, Karlsruhe Institute of Technology, DE  

16:25 – 16:55European Joint Research Project “MetAmmi” (Metrology for Additively Manufactured Medical Implants)
Dr Anne-François Obaton, LNE, FR
18:30 – 20:30Evening welcome civic reception at Chateau des Ducs de Bretagne, Nantes


Tuesday 17th September 2019

09:00 – 09:30Keynote
A systemic approach to improve performances of the AM-based value chain
Prof. Alain Bernard, Ecole Centrale de Nantes, FR
09:30 – 10:10

Co-Chair:  John Dardis;  Senajith Rekawa

Session 2: Design for Precision (Part 1)

09:20     Characterization techniques for evaluation of micro scale vat photopolymerization- based additive manufacturing.
Anna Danielak, Technical University of Denmark, DK

09:50     6 Design principles for SLM-based compliant mechanisms
Florent Cosandier,CSEM, CH

10:10 – 10:25Coffee & Networking
10:25 – 11:05Session 2: Design for Precision (Part 2)

10:25     Reducing peak stresses in a folded leaf spring by pre-curving and pre-loading
Jelle Rommers, Delft University of Technology, NL

10:45     Strain Gauge Filament for Extrusion Based Additive Manufacturing
Frederik Madsen, Technical University of Denmark, DK 

11:05 – 12:25

Co-Chair:  David Bue Pedersen;  Brandon Lane

Session 3: Designing & Characterising AM machines

11:05     Measurements of Wire + Arc additive manufacturing layer heights during arc operation using coherent range-resolved interferometry (CO-RRI)
Thomas Kissinger, Cranfield University, UK 

11:25     Feed-forward laser control in selective laser sintering for improved part consistency
Tim Phillips, University of Texas, US

11:45     Influence of the opto-mechanical chain on the energy provided by the laser spot to the material in laser powder bed fusion processes
Sylvain Lavernhe, ENS Paris-Saclay, FR 

12:05     Considerations for interpreting in-situ photodiode sensor data in pulsed mode laser powder bed fusion
Venkata Karthik Nadimpalli, Technical University of Denmark, DK

12:25 – 12:45European Framework for Continuous Professional Development in Precision Engineering for Advanced Manufacturing
(Ecp2 Programme)
12:45 – 13:45Lunch
13:45 –14:00Commercial Session

  • Oxford Instruments
  • AddUp
14:00 –15:20

Co-Chair:  John Taylor;  Liam Blunt

Session 4: Integrating AM into Holistic Manufacturing Process

14:00     3d Printed Mold for Powder Injection Molding Process
Alberto Basso, Technical University of Denmark, DK

 14:20     Development of a substrate unit for LPBF to increase automatization in manufacturing process chains
Moritz Wollbrink, Fraunhofer Institute for Production Technology, DE

14:40     Measuring the value of DfAM in metal powder bed fusion direct part production
Iñigo Flores Ituarte, Aalborg University, Copenhagen, DK

15:00     Challenges of combining direct metal deposition with milling for the fabrication of a rocket nozzle
Daniel Eisenbarth, inspire AG, ETH Zürich, CH

15:20 – 15:35Coffee & Networking
15:35– 16:55

Co-Chair:  Farouk Belkadi;  Tim Phillips

Session 5: Integration of AM

15:35     Opto-mechanical modeling and identification for calibration of LPBF machine
Sylvain Lavernhe, ENS Paris Saclay, FR

15:55    PSD and roughness correlation in AM
François Bonjour, Société PAC

16:15     Topological optimization for AM:  contribution to design of support  structures
Thomas Abballe, Société ESI Group

16:35     Precision and Health of 3D printed parts : a case study with the I AM SURE Project
Mathias Lefort, Société BeAM-AddUp

17:00 – 18:30 Technical tours: Ecole Centrale de Nantes, Nantes, France
19:30 – 22:30Networking Dinner

19:30   Boarding of boat from Downtown
20:00   Departing from dock
22:30   Return to Downtown

Wednesday 18th September

09:00 – 10:00

Co-Chair:  Richard Leach; Francois Blateyron

Session 6: Dimensional accuracy and surface finish in AM (Part 1)

09:00     Surface roughness dependant factors in metal powder bed fusion processes
Sara Sendino, CFAA, ES

09:20     Comparison and validation of segmentation methods for feature-based characterisation for metal powder bed fusion surfaces
Lewis Newton, University of Nottingham, UK

09:40     Simulation-driven material removal compensation to achieve dimensional accuracy after abrasive flow machining
Chun Wai Kum, Advanced Remanufacturing & Technology Centre, SG

10:00 – 10:15Coffee & Networking
10:15 – 10:55Session 6: Dimensional accuracy and surface finish in AM (Part 2)

10:15     Machining of Fe17Cr2Ni0.2C iron based thermally sprayed coatings by turning with special interest to the influence of the depth of cut
Hendrik Liborius, Chemnitz University of Technology, DE

10:35     Dimensional and form characterization of a benchmarking specimen subjected to different post‐processing technologies for metal additive manufacturing
Martin Kain, Technical University of Denmark, DK

10:55 – 12:05

Co-Chair:  Harald Bosse; Jason Fox

Session 7: Standards, Education & Training

10:55     SOTA: Advancing Metrology in Additive Manufacturing: Highlights from NIST
Brandon Lane, National Institute of Standards and Technology (NIST), US

11:25     How to improve your efficiency by a new Metal AM learning approach
Philippe Vannerot, AddUp, FR

11:45     Skills for Additive Manufacturing, An Erasmus+ initiative
Dr. Farouk Belkadi, Ecole Centrale de Nantes, FR

12:05 – 13:05Poster Session

P2.01      Influence of the post-curing treatment on the mechanical properties in the vat photopolymerization technique
Esmeray Üstünyagiz, DTU, DK

P2.02      Methodology for geometric characterization and dimensioning of additively manufactured channels
Thomas Dahmen, DTU, DK

P2.03      Design guidelines for post-processing of laser beam melting in context of support structures
Thomas Kuenneke, Paderborn University, DE

P3.01      Experimental analysis of the filament feeding force in material extrusion additive manufacturing
Marcin Serdeczny, DTU, DK

P6.01      Manufacturing Accuracy in Additive Manufacturing:  A method to determine Geometrical Tolerances
Tobias Lieneke, Paderborn University, DE

P6.02      Modelling of material deposition in big area additive manufacturing and 3D concrete printing
Marcin Piotr Serdeczny, DTU, DK

P6.03      Impact of post-processing stages on vat-photopolymerized specimens
Macarena Méndez Ribó, DTU, DK

P6.04      Hybrid manufacturing of carbon fibre reinforced PEEK
Clemens Maucher, University of Stuttgart, DE

P6.05      Comparison of selective laser melting post-processes based on amplitude and functional surface roughness parameters
Martin Kain, DTU, DK

P8.01      Advancements in the accuracy investigation of X-ray computed tomography characterization of additively manufactured metal surfaces
Filippo Zanini, University of Padova, IT

P8.02      Selective laser melting of soft magnetic alloys for automotive applications
Mostafa Yakout, McMaster University, CA

13:05 – 14:00Lunch
14:00 – 14:20XCT Surface comparison
Prof. Liam Blunt, University of Huddersfield, UK
14:20 – 15:40

Co-Chair:  Enrico Savio; Hélène Mainaud Durand

Session 8: Metrology: Post and In-process measurement and characterisation techniques (Part 1)

14:20     Surface measurement and characterisation of additively manufactured 3D cellular scaffold for acetabular implants
Shan Lou, Future Metrology Hub, University of Huddersfield, UK

14:40     Build orientation effects on the roughness of SLM channels
Christopher Klingaa, Technical University of Denmark, DK

15:00     Influence of single-filament dimensions on geometrical density as a quality criterion for fused filament fabrication
Kilian Geiger, Laboratory for Machine Tools and Production Engineering, Aachen, DE

15:20     Investigation of X-ray computed tomography for dimensional measurement
Shihua Wang, National Metrology Centre, A*STAR, SG

15:40 – 16:00Coffee & Networking
16:00 – 17:20Session 8: Metrology: Post and In-process measurement and characterisation techniques (Part 2)

16:00     Effect of measurement and sampling strategy in surface analysis of laser powder bed fusion additive manufacturing of nickel superalloy 625
Jason Fox, National Institute of Standards and Technology, US

16:20     Deployment of an in process surface measurement system for E-Beam AM
Liam Blunt, University of Huddersfield, UK

16:40     Multi-sensor measurement system for metal laser powder
Taufiq Widjanarko, University of Nottingham, UK

17:00     Multi-laser position tracking in additive manufacturing using a co-axial melt-pool monitoring system
Dr. John Dardis, Renishaw, UK

17:20 – 17:50Discussion forum
17:50 – 17:55Closing remarks: Dr John Taylor, University of North Carolina at Charlotte, US
Informal post meeting drinks (optional)
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