Dr Evren Yasa

Advanced Manufacturing Research Centre

Head of Additive Manufacturing

A head and shoulders photo of Evren Yasa
Profile picture of A head and shoulders photo of Evren Yasa
e.yasa@sheffield.ac.uk

Full contact details

Dr Evren Yasa
Advanced Manufacturing Research Centre
Samlesbury Enterprise Zone
Roy Chadwick Way, Mellor Brook
Blackburn
BB2 7HP
Profile

Dr. Evren Yasa graduated with her degree in Mechanical Engineering from the Istanbul Technical University (Turkey) and completed her master's degree at the University of British Columbia (BC, Canada) on volumetric error modelling and compensation. She received her Ph.D. degree with her thesis on "Combined Process of Selective Laser Melting and Selective Laser Erosion/Laser Re-melting" at the Catholic University of Leuven, for which she was awarded the "Emerald Outstanding Doctoral Study-Highly commended". After her Ph.D. study, she worked as a senior engineer at TEI, a GE-joint venture company specializing in manufacturing aero-engine parts, where she led Additive Manufacturing projects and facilities. Later, she joined Eskisehir Osmangazi University as an assistant professor and worked as a consultant to aerospace and defence companies to adopt Additive Manufacturing processes. She has been working as an independent expert in the field of laser-based manufacturing on behalf of the European Commission to evaluate proposals and project progresses.

She has joined AMRC, from the University of Sheffield, in July 2022 and works as the Head of Additive Manufacturing leading AM activities and capabilities to address industrialisation of mainly metallic AM processes to widen its scope and applicability to real-world problems.

Research interests
  • Metallic Additive Manufacturing
  • Laser/Electron Powder Bed Fusion
  • Wire Arc Additive Manufacturing
  • Additive Friction Stir Deposition
  • Quality Control
  • Material Characterization and Testing
  • Process Monitoring and Control
  • Process Modelling
Publications

Journal articles

Chapters

Conference proceedings papers

  • Urena LE, Poyraz O, Yasa E & Hughes J (2024) An Experimental and Numerical Study on the Addituve Friction Stir Deposi on of Al 6061. Conference book RIS download Bibtex download
  • Poyraz O, Lou S, Molyneux A, Liu Y, Liu W, Yasa E & Hughes J (2024) UNDERSTANDING THE LASER POWDER BED FUSION SURFACE QUALITY FOR CP1 ALUMINUM ALLOY. Proceedings of the 2024 ASPE-euspen Summer Topical Meeting on Advancing Precision in Additive Manufacturing (pp 57-62) RIS download Bibtex download
  • Yakubov V, Ostergaard H, Bhagavath S, Leung CLA, Hughes J, Yasa E, Khezri M, Löschke SK, Li Q & Paradowska AM (2024) Hardness Distribution and Defect Formation in Aluminium Alloys Fabricated via Additive Friction Stir Deposition (AFSD). 11th Australasian Congress on Applied Mechanics, ACAM 2024 (pp 244-251) RIS download Bibtex download
  • Yasa E & Ersoy K (2020) A review on the additive manufacturing of fiber reinforced polymer matrix composites. Solid Freeform Fabrication 2018: Proceedings of the 29th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2018 (pp 1024-1033) RIS download Bibtex download
  • Yasa E (2020) Understanding adopting selective laser melting of metallic materials. Solid Freeform Fabrication 2018: Proceedings of the 29th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2018 (pp 1232-1245) RIS download Bibtex download
  • Poyraz , Yasa E, Akbulut G, Orhangül A & Pilatin S (2020) Investigation of support structures for direct metal laser sintering (DMLS) of IN625 parts. Proceedings - 26th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2015 (pp 560-574) RIS download Bibtex download
  • Kundakcioglu E, Lazoglu I, Poyraz Ö, Yasa E & Cizioglu N (2017) Residual stress and distortion model in direct metal laser sintering process. ICF 2017 - 14th International Conference on Fracture, Vol. 2 (pp 1014-1015) RIS download Bibtex download
  • Ugur E, Yilmaz R, Oren S, Akbulut G, Poyraz O & Yasa E (2016) Process Limits of Direct Metal Laser Sintering (DMLS) in Terms of Minimum Hole and Boss Diameters with Varying Aspect Ratios. Conference book (pp 1-15) RIS download Bibtex download
  • Poyraz O, Yasa E & Pilatin S (2015) Review of Hybrid Production Systems Using Additive Manufacturing and Machining. Conference book (pp 103-115) RIS download Bibtex download
  • Yasa E, Poyraz O, Cizioglu N & Pilatin S (2015) Repair and Manufacturing of High Performance Tools by Additive Manufacturing. Conference book (pp 245-251) RIS download Bibtex download
  • Poyraz O, Yilmaz O & Yasa E (2014) Investigation of Free-Form Surface Reconstruction Techniques for Reverse Engineering of Worn-Out Gas Turbine Blades: A Case Study. Conference book (pp 1-15) RIS download Bibtex download
  • Yasa E, Demir F, Akbulut G, Cızıoğlu N & Pilatin S (2014) Benchmarking of different powder-bed metal fusion processes for machine selection in additive manufacturing. 25th Annual International Solid Freeform Fabrication Symposium � An Additive Manufacturing Conference, SFF 2014 (pp 390-403) RIS download Bibtex download
  • Thijs L, Van Humbeeck J, Kempen K, Yasa E, Kruth JP & Rombouts M (2012) Investigation on the inclusions in maraging steel produced by selective laser melting. Innovative Developments in Virtual and Physical Prototyping - Proceedings of the 5th International Conference on Advanced Research and Rapid Prototyping (pp 297-304) RIS download Bibtex download
  • Liu Z, Chua C, Leong K, Kempen K, Thijs L, Yasa E, Van-Humbeeck J & Kruth J (2011) A preliminary investigation on Selective Laser Melting of M2 high speed steel (pp 339-346) RIS download Bibtex download
  • Craeghs T, Clijsters S, Yasa E & Kruth JP (2011) Onlizne quality control of selective laser melting. 22nd Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2011 (pp 212-226) RIS download Bibtex download
  • Kempen K, Thijs L, Yasa E, Badrossamay M, Verheecke W & Kruth JP (2011) Process optimization and microstructural analysis for selective laser melting of AlSi10Mg. 22nd Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2011 (pp 484-495) RIS download Bibtex download
  • Kellens K, Yasa E, Renaldi , Dewulf W, Kruth JP & Duflou JR (2011) Energy and resource efficiency of SLS/SLM processes. 22nd Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2011 (pp 1-16) RIS download Bibtex download
  • Yasa E, Deckers J, Kruth J-P, Rombouts M & Luyten J (2010) Investigation of Sectoral Scanning in Selective Laser Melting. ASME 2010 10th Biennial Conference on Engineering Systems Design and Analysis, Volume 4, 12 July 2010 - 14 July 2010. RIS download Bibtex download
  • Kruth JP, Badrossamay M, Yasa E, Deckers J, Thijs L & Van Humbeeck J (2010) Part and material properties in selective laser melting of metals. 16th International Symposium on Electromachining, ISEM 2010 (pp 3-14) RIS download Bibtex download
  • Yasa E, Kempen K, Kruth JP, Thijs L & Van HJ (2010) Microstructure and mechanical properties of maraging steel 300 after selective laser melting. 21st Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2010 (pp 383-396) RIS download Bibtex download
  • Kruth JP, Deckers J, Yasa E & Wauthlé R (2010) Assessing influencing factors of residual stresses in SLM using a novel analysis method. 16th International Symposium on Electromachining, ISEM 2010 (pp 531-537) RIS download Bibtex download
  • Rombouts M, Yasa E, Luyten J, Deckers J & Kruth J (2009) Experimental investigation of charpy impact tests on metallic SLM parts RIS download Bibtex download
  • Badrossamay M, Yasa E, Van Vaerenbergh J & Kruth JP (2009) Improving productivity rate in SLM of commercial steel powders. Technical Paper - Society of Manufacturing Engineers, Vol. TP09PUB17 (pp 1-13) RIS download Bibtex download
  • Yasa E, Deckers J, Craeghs T, Badrossamay M & Kruth JP (2009) Investigation on occurrence of elevated edges in selective laser melting. 20th Annual International Solid Freeform Fabrication Symposium, SFF 2009 (pp 180-192) RIS download Bibtex download
  • Yasa E, Deckers J, Craeghs T, Badrossamay M & Kruth JP (2009) Investigation on occurrence of elevated edges in selective laser melting. 20th Annual International Solid Freeform Fabrication Symposium, SFF 2009 (pp 673-685) RIS download Bibtex download
  • Kruth J-P & Yasa E (2008) Experimental Analysis of Process and Laser Parameters in Laser Marking. Volume 1: Advanced Energy Systems; Advanced and Digital Manufacturing; Advanced Materials; Aerospace, 7 July 2008 - 9 July 2008. RIS download Bibtex download
  • Yasa E & Kruth JP (2008) Experimental study of the combined process of selective laser melting and selective laser erosion. Technical Paper - Society of Manufacturing Engineers, Vol. TP08PUB42 (pp 1-12) RIS download Bibtex download
  • Kruth JP, Deckers J & Yasa E (2008) Experimental investigation of laser surface remelting for the improvement of selective laser melting process. 19th Annual International Solid Freeform Fabrication Symposium, SFF 2008 (pp 321-332) RIS download Bibtex download

Preprints

Grants

The projects that I led as a Principal Investigator while I was an assistant professor at Eskisehir Osmangazi University in my previous role in the last 5 years are listed below:

Role

Project Title

Sponsor / Funding Stream

Project Dates

Main Partners

PI

Cost Effective Process Chain for Electron Beam Melting

The Scientific and Technological Research Council of Turkey

01.02.2020-31.01.2023

ASELSAN, BTECH and Istanbul Technical University

PI

Wear/friction behaviour of lattices produced by LPBF

The Scientific and Technological Research Council of Turkey

01.03.2020-

01.12.2020

N/A

PI

Development of LPBF process for the Manufacturing and Characterisation of of Calcium Phosphate/PLGA Composite Coated Porous Titanium Mini Plates for Maxillofacial, Hand and Ear-Nose-Throat (ENT) Surgery

The Scientific and Technological Research Council of Turkey

15.04.2021-

15.04.2023

Hacettepe University (TR)

Hallym University Medical School (HUMS) (South Korea)

PI

Analysis and Improvement of Interactions between Additive Manufacturing and Machining in Hybrid Processing

The Scientific and Technological Research Council of Turkey

15.03.2021-

15.11.2023

Sabanci University (TR)

Nuclear AMRC (UK)

Roketsan (TR)

Eskisehir Technical University (TR)

Here is the list of projects I am currently heading at AMRC:

  • In-situ porosity forecasting in L-PBF using machine learning -  CATAPULT funding
  • WAAM of Cryogenic Liquid Hydrogen Storage Tank Demonstrator -CATAPULT funding
  • Matching MELD to Production (ADOPTION) -  CATAPULT funding
  • Development of Aero-components Using WAAM (DATUM) – ABG project with Boeing
  • MELD Phase 1 – Commercial Project funded by BAE Systems
  • NDT for AM Components – Commercial Project funded by BAE Systems

ADG5361: AM Optimisation of Heat exchangers – ADG project with Boeing

Professional activities and memberships
  • EU AM Platform
  • Turkish Association of Additive Manufacturing (TAMA)