Project Description

Special Interest Group Meeting: Advancing Precision in Additive Manufacturing
w/c 20th September 2021

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Advancing Precision in Additive Manufacturing
w/c 20th September 2021, inspire AG, St. Gallen, Switzerland

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This 7th in the series of joint Special Interest Group meeting between euspen and ASPE on Advancing Precision in Additive Manufacturing is crucial to putting additive manufacturing onto the factory floor. We are seeking papers in the following categories:

1. Dimensional accuracy and surface finish in additive manufacturing (AM)

  • State of the art: What level of precision is achievable?
  • Functional specifications for form and finish
  • Prediction and modelling of dimensional errors and surface topography
  • Developments in fabricating lattice structures with high integrity
  • Diversity in scale of features:  large-scale to micro-/nano-scale

2. Design for precision

  • Design rules and tolerancing for AM
  • Topology optimisation in the context of AM and achieving precision
  • Novel designs for flexures and kinematic couplings
  • Metallurgy and fatigue issues in high-cycle precision applications
  • Design and tolerancing of lattice structures

3. Machine precision – process development and control

  • In-situ process monitoring, e.g. melt zone temperature, powder bed
  • In-process measurement of workpiece shape and topography
  • Using artefacts to assess machine performance, round-robin testing
  • Holistic views of the control system, process feedback, correction
  • Machine learning to conquer the complex AM parameter space
  • Machine learning with a focus on precision and uncertainty

4. Standards certification and training

  • Certifying AM equipment capabilities and material properties
  • Industrial demands for ASTM and ISO standards

5. Integrating AM into a holistic manufacturing process

  • Cost-benefit trade-offs of using AM within a complex process chain
  • Engineered partnerships between AM and secondary finishing
  • Kinematic tooling or pallets for repeatable part handling
  • Digitalisation of manufacturing

6. Metrology

  • Surface topography measurements on rough as-built surfaces
  • Dimensional metrology of internal features using computed tomography
  • Multi-sensor approaches, data fusion and machine learning
  • Complex form measurement, registration and fitting of point clouds
  • Measurement of 3D lattice strut dimensional accuracy and integrity
  • Characterisation of internal defects and voids

The local hosts and organising committee for the joint Special Interest Group meeting between euspen and ASPE on Advancing Precision in Additive Manufacturing are :-  Dr Adriaan Spierings from inspire AG; Dr Anke Günther from ETH Zurich; Prof. Richard Leach from University of Nottingham;  and Dr John Taylor from University of North Carolina at Charlotte

The Additive Manufacturing meeting chair is Prof. Richard Leach from University of Nottingham and Dr John Taylor from University of North Carolina at Charlotte

Key Dates:

23rd April 2021 : Online short abstract submission deadline

18th June 2021 : Online extended abstract submission deadline

9th July 2021 : Notification of presentation acceptance (oral/poster)

14th July 2021 : Delegate registration opens

Registration Fees

Fees and information about the Additive Manufacturing
meeting all fees include networking dinner

  • €195+VAT euspen Student Member
  • €395+VAT euspen Member
  • €495+VAT Non-euspen members
  • €595+VAT Exhibitor (table top)
  • Networking dinner not included in registration fee for Student Members
  • €45+VAT  Networking dinner (Student Members)

All speakers and presenters must register for the conference using the appropriate delegate fee.

Submit an abstract for Additive Manufacturing 2021

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Announcement & Call for Abstracts

Come and join your international peers and maintain a leading edge on technology, customers, partners and suppliers. Access the greatest minds in Advancing Precision for Additive Manufacturing  research and development. Share knowledge and information and stimulate debates.

Themes :-

  • Dimensional accuracy and surface finish in additive manufacturing (AM)
  • Design for precision
  • Machine precision – process development and control
  • Standards certification and training
  • Integrating AM into a holistic manufacturing process
  • Metrology

Submission of abstracts

Abstracts are expected to describe original work, previously unpublished and should indicate new and significant advances and their importance. Initially short abstracts between of around 300 words in length should be submitted online using the below links.

Following review of short abstracts, authors will be provided with instructions for submitting extended abstracts of between two and four A4 pages. On acceptance of extended abstracts, authors are notified of presentation mode (poster/oral). All papers accepted will also be indexed on to euspen’s Knowledge Base which is indexed via Google Scholar. The final decision on acceptance of all papers is made by the Editor and Scientific Committee of the SIG meeting.

The invitation to submit an abstract does not constitute an offer to pay travel, accommodation or registration costs associated with the conference. Similarly, no speaker fee is paid to successful participants. All speakers must register for the conference and transfer registration fee. In specific cases the organising committee reserves the right to deviate from the standard procedure.

Keynotes & SOTAs:

We are delighted to bring together leading expertise globally to an open forum for focused presentations and discussions on additive manufacturing.

Afaf Remani 

University of Nottingham, UK

SOTA: In situ monitoring of metal powder bed fusion for defect identification using fringe projection

Additive manufacturing (AM) techniques allow building components on a layer-by-layer basis, with increased precision and efficiency compared to conventional methods. However, AM techniques such as laser-based powder bed fusion (L-PBF), still lack quality assurance due to the appearance of defects during part manufacture. Factors including process parameters, build environment and process stability produce these defects, which jointly influence the integrity of the finished part. In situ monitoring techniques permit to closely inspect the build process and identify emerging defects. However, while defects are originally unwanted, not all of them are detrimental to part microstructure. In this SOTA talk, we present a methodology to discriminate critical/‘killer’ defects from neutral anomalies, using in situ monitoring and topographical analysis. The talk will detail the development of the main monitoring technique, fringe projection, and its deployment inside a commercial L-PBF machine. Thermal imaging will also be discussed as a second monitoring technique used simultaneously. The general pipeline for in situ detection, data analysis and ex-situ testing will be described. The collected data and any detection results will be examined. A summary of the challenges and opportunities for in situ monitoring in AM will be presented.

Biography

Afaf Remani is currently pursuing a PhD in Manufacturing Engineering at the University of Nottingham, focusing on the design and development of measurement techniques for in situ monitoring and defect detection in additively manufactured metal parts. Her project is supported by Renishaw plc and is an on-going partnership between the University of Nottingham and Imperial College London. Prior to her PhD, Afaf completed an MSc in Mechanical Engineering, with a specialisation in Manufacturing, at the University of Nottingham and a BSc in General Engineering at Al Akhawayn University (Morocco). She has a solid background in dynamics and mechanics of materials and is a part-time supervisor of undergraduate mechanical engineering laboratories alongside her PhD. Afaf is a collegiate member in the Society of Women Engineers and took part in research and development projects in the United States and Portugal. She co-authored two review papers about in-situ monitoring and defect detection in additive manufacturing, among which one is a high-impact comprehensive review.

Professor Michael A. Cullinan 

University of Texas at Austin

SOTA: A review of the state-of-the-art and precision engineering challenges in micro/nanoscale additive manufacturing

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