Mumtaz, Kamran, Professor

Professor Kamran Mumtaz

School of Mechanical, Aerospace and Civil Engineering

Professor in Advanced Manufacturing

Mechanical Engineering Postgraduate Admissions Tutor

k.mumtaz@sheffield.ac.uk
+44 114 222 7789

Sir Frederick Mappin Building

Full contact details

Professor Kamran Mumtaz
School of Mechanical, Aerospace and Civil Engineering
Sir Frederick Mappin Building
Mappin Street
��«Ӱҵ
S1 3JD

Profile

I obtained my PhD in laser-based additive manufacturing of superalloys for aerospace (2008) and an MSc in Manufacturing Management (2005) from Loughborough University, following a BEng (Hons) in Aeronautical Engineering. Since then, I have been at the forefront of additive manufacturing (AM) research, leading a team focused on developing novel metallic and composite AM technologies. My research aims to enhance material performance, process efficiency, and industrial scalability, enabling the production of high-performance components for aerospace, medical, and energy applications.

Beyond my research, I am committed to developing international research collaborations and fostering global knowledge exchange in additive manufacturing. I actively collaborate with leading research institutions in Mexico, South Korea, and India, working on joint research initiatives, industrial partnerships, and knowledge-sharing networks. Additionally, I play a key role in supporting the postgraduate research network with these countries, strengthening academic partnerships and training the next generation of AM specialists.

Research interests

I specialise in developing advanced Additive Manufacturing (AM) processes for metallic and composite materials, with a primary focus on Laser Powder Bed Fusion (LPBF) and my research aims to enhance material performance, process efficiency, and industrial scalability.

My research has been supported by UK Industry, the Engineering and Physical Sciences Research Council (EPSRC), Innovate UK (IUK), and International funding bodies. These grants have enabled the development of cutting-edge AM technologies and contributed to advancing knowledge in the field of metallic and composite AM.

Novel Manufacturing System Development

To push the boundaries of AM, my team and I develop bespoke AM systems tailored to novel material processing and hybrid manufacturing approaches. This research includes:

Design and manufacture of multi-laser diode architectures, enabling scalable and efficient melting of metallic feedstock (diode area melting).
Enhanced thermal control of the melt pool, improving stress reduction, microstructural/mechanical property customisation, and expanding the range of processable alloys.
Binder jetting technologies for multi-material processing and carbon fibre-based AM part fabrication.

Residual Stress Control & Process Optimisation

A key challenge in AM is residual stress accumulation, which can lead to distortion, cracking, and mechanical failure. My research focuses on stress reduction strategies, including novel laser pre-heating techniques and in-situ monitoring to mitigate thermal stresses, improve dimensional stability, and enhance the structural integrity of AM components.

Multi-Material & Functionally Graded Structures

By integrating different material systems within a single build, multi-material and functionally graded structures offer unprecedented design flexibility. My team explores developing hardware to enable novel alloy composition delivery, microstructural control techniques, and process parameter optimisation to enable seamless material transitions and customised mechanical properties in AM parts.

Publications

Journal articles

Erman SC, Aydin A, Groom K & Mumtaz K (2025) . The International Journal of Advanced Manufacturing Technology.
Genç K, Todd I & Mumtaz K (2025) . Progress in Additive Manufacturing.
Aydin A, Cetin E, Erman SC & Mumtaz K (2025) . Journal of Materials Research and Technology, 34, 2814-2827.
Yang Y, Aydin A, Mumtaz K, Januschewsky M, Meierhofer A & Lewis R (2025) . Tribology International, 204.
Caglar H, Aydin A, Gulenc IT, Groom K & Mumtaz K (2024) . Materials & Design, 248.
Paul S, Smith PJ & Mumtaz K (2024) . The International Journal of Advanced Manufacturing Technology, 135(5-6), 2355-2372.
Genç K, Toyting S, Galindo-Nava E, Todd I & Mumtaz K (2024) . The International Journal of Advanced Manufacturing Technology, 132(9-10), 5017-5038.
CAGLAR H, LIANG A, GROOM K & MUMTAZ K (2024) . Journal of Materials Processing Technology.
Pedrazzini S, Pek ME, Ackerman AK, Cheng Q, Ali H, Ghadbeigi H, Mumtaz K, Dessolier T, Britton TB, Bajaj P , Jägle E et al (2023) . Metallurgical and Materials Transactions A, 54(8), 3069-3085.
Karaş B, Smith PJ, Fairclough JPA & Mumtaz K (2022) . Additive Manufacturing, 58.
Alsaddah M, Khan A, Groom K & Mumtaz K (2022) . Materials and Design, 215.
Karaş B, Beedasy V, Leong Z, Morley NA, Mumtaz K & Smith PJ (2021) . Micromachines, 12(10).
Alsaddah M, Khan A, Groom K & Mumtaz K (2021) . The International Journal of Advanced Manufacturing Technology, 113(9-10), 2461-2480.
Bharaj K, Paul S, Mumtaz KA, Chisholm M & Hopkinson N (2020) . Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, 234(1-2), 118-125.
Ali H, Ghadbeigi H, Hosseinzadeh F, Oliveira J & Mumtaz K (2019) . International Journal of Advanced Manufacturing Technology, 103(9-12), 4467-4479.
Martinez R, Todd I & Mumtaz K (2019) . Virtual and Physical Prototyping, 14(3), 242-252.
Galindo-Fernandez M, Mumtaz KA, Rivera-Diaz-del-Castillo PEJ, Galindo-Nava EI & Ghadbeigi H (2018) . Materials and Design, 160, 350-362.
Ali H, Ghadbeigi H & Mumtaz KA (2018) . Journal of Materials Engineering and Performance, 27(8), 4059-4068.
Zavala-Arredondo M, Ali H, Groom KM & Mumtaz KA (2018) . International Journal of Advanced Manufacturing Technology, 97(1-4), 1383-1396.
Ali H, Ghadbeigi H & Mumtaz KA (2018) . International Journal of Advanced Manufacturing Technology, 97(5-8), 2621-2633.
Ali H, Ghadbeigi H & Mumtaz KA (2018) . Materials Science and Engineering: A, 712, 175-187.
Zavala-Arredondo M, Groom KM & Mumtaz KA (2018) . The International Journal of Advanced Manufacturing Technology, 94, 2563-2576.
Vora P, Martinez R, Hopkinson N, Todd I & Mumtaz KA (2017) . Technologies, 5(2).
Ali H, Ma L, Ghadbeigi H & Mumtaz K (2017) . Materials Science and Engineering: A, 695, 211-220.
Zavala-Arredondo M, Boone N, Willmott J, Childs DTD, Ivanov P, Groom KM & Mumtaz K (2017) . Materials and Design, 117, 305-315.
Mumtaz KA & ali H (2017) . Technologies, 5(1).
Pitt K, Lopez O, Lafferty AD, Todd I & Mumtaz KA (2017) . Composites Science and Technology, 138, 32-39.
Lopez-Botello O, Martinez-Hernandez U, Ramírez J, Pinna C & Mumtaz KA (2017) . Materials and Design, 113, 369-376.
Mumtaz KA, Todd I, Hopkinson N & Vora P (2015) . Additive Manufacturing, 7, 12-19.
Vora P, Derguti F, Mumtaz K, Todd I & Hopkinson N (2013) Investigating a semi-solid processing technique using metal powder bed Additive Manufacturing processes. 24th International SFF Symposium - An Additive Manufacturing Conference, SFF 2013, 454-462.
Mumtaz KA & Hopkinson N (2010) . J MATER PROCESS TECH, 210(2), 279-287.
Mumtaz KA & Hopkinson (2010) . Rapid Prototyping Journal, 16(4), 248-257.
Mumtaz KA & hopkinson (2009) . Rapid Prototyping Journal, 15(2), 96-103.
Mumtaz KA, Erasenthiran P & Hopkinson N (2008) . J MATER PROCESS TECH, 195(1-3), 77-87.
Mumtaz KA & Hopkinson N (2007) . J MATER SCI, 42(18), 7647-7656.
Harrison N, Todd I & Mumtaz K () . Journal of Materials Science.
Mumtaz KA, Harrison N & todd I () . Acta Materialia, 94, 59-68.

Conference proceedings papers

Cetin E, Aydin A, Erman C & Mumtaz K (2024) Multi-laser powder bed fusion of Cu10Sn using low-power 450nm diode lasers. Proceedings of the 35th Annual International Solid Freeform Fabrication Symposium – An Additive Manufacturing Conference (pp 1302-1317). Austin, Texas, USA, 11 August 2024 - 11 August 2024.
Erman C, Aydin A, Liang A & Mumtaz K (2024) Parametric investigation of single-layer stainless steel 316L with novel laser powder bed fusion technology: diode area melting with 450 nm blue lasers. Proceedings of the 35th Annual International Solid Freeform Fabrication Symposium – An Additive Manufacturing Conference (pp 1329-1342). Austin, Texas, USA, 11 August 2024 - 11 August 2024.
Caglar H, Liang A & Mumtaz K (2023) Multiple 450 nm diode laser processing of TI64 powder. Solid Freeform Fabrication 2023: Proceedings of the 34th Annual International Solid Freeform Fabrication Symposium (pp 1265-1278). Austin, Texas, USA, 14 August 2023 - 14 August 2023.
Mumtaz KA, Hopkinson N, Todd I, Derguti F & Vora P (2013) Investigating a Semi-Solid Processing technique using metal powder bed Additive Manufacturing Processes. Proceedings Solid Freeform Fabrication Symposium(24) (pp 454). Austin Texas, USA, 5 August 2013 - 7 August 2013.
Mumtaz KA, Hopkinson N, Stapleton D, Todd I, Derguti F & Vora P (2012) Benchmarking metal powder bed Additive Manufacturing processes (SLM and EBM) to build flat overhanging geometries without supports. Proceeding Solid Freeform Fabrication Symposium(22). Austin Texas, USA, 6 August 2012 - 8 August 2012.
Mumtaz KA & hopkinson (2011) A Method to Eliminate Anchors/Supports from Directly Laser Melted Metal Powder Bed Processes. Proc. Solid Freeform Fabrication Symposium (pp 55-64). Austin Texas, USA, August 2011.
Alharbi A, Khan A, Todd I, ramadan M & Mumtaz K () . Materials Today: Proceedings. Uttarakhand, India, 1 May 2021 - 1 May 2021.
Lopez O, Martínez-Hernández U, Ramírez J, Pinna C & Mumtaz KA () Simulating the microstructural evolution of a Selective Laser Melted AA-2024. Solid Freeform Fabrication 2016: Proceedings of the 27th Annual International (pp 257-267). Austin, Texas
Mumtaz KA & hopkinson () Selective Laser Melting of Inconel 625 using Pulse Shaping. Proc. Solid Freeform Fabrication Symposium (pp 165-178). Austin Texas, USA, August 2011.
Mumtaz KA, HOPKINSON & Erasenthiran P () High Density Selective Laser Melting of Waspaloy. Proc. Solid Freeform Fabrication Symposium (pp 220-232). Austin Texas, USA, August 2011.
Mumtaz KA, Vora P & Hopkinson N () Benchmarking capabilities of SLM and EBM to build overhangs without supports

Patents

Mumtaz KA, Furlong MT & hopkinson (2011) Method, apparatus, computer readable storage medium and computer program for forming an object. US 2011/0042031 A1 (US). Appl. 24 Feb 2011.

Website content

(2011) Emerald | Rapid Prototyping Journal | Selective laser melting of Inconel 625 using pulse shaping.

Teaching activities

MEC454 – Additive Manufacturing – Principles and Applications
MEC333 – Integrated Design Skills

PhD projects and students

Current PhD Students & Research Projects

Miss Chunli Wu – Robocasting of ceramic dental implants
Mr Mehmet Karaman – Multi-material laser powder bed fusion
Mr Aria Izadi – Thermal gradient control during laser powder bed fusion of tungsten
Mr Edward Rawson – Use of machine learning for training generative adversarial networks to model diode area melting
Mr Can Erman – Diode area melting of 316L
Mr Fathi Alhussadi – Modelling machining conditions of additively manufactured Ti64 components
Mr Abdul Haque – Thermal management strategies in laser powder bed fusion
Mr Zaher Alshehri – Multi-laser processing of TiAl
Mr Zakki Emzam – Multi-material binder jetting of 316L and Cu
Mr Mustafa Yesilyurt – Laser powder bed fusion of crack-susceptible alloys

Past Projects and Graduated PhD Students

Dr Alkim Aydin (2025) - The use of laser heating for microstructural customisation of Ti6Al4V processed using Diode Point Melting
Dr Sarath Veetal (2024) - Diode area melting of Ti6Al4V: probing the multi-laser interaction, residual stress evolution, and spattering dynamics
Dr Halil Caglar (2024) – Hybrid multi-laser powder bed fusion
Dr Hussam Abunar (2024) - Multi-material metal powder bed binder jetting using PVA binder
Dr Kubra Genc (2023) - Processing of NdFeB for electric motor applications using selective laser melting
Dr Busra Karas (2023) - Additive manufacturing of carbon fibre-reinforced polymer composites
Dr Abdullah Alharbi (2023) – Layered extrusion of metallic alloys
Dr Sourabh Paul (2022) - Binder jetting of aqueous polyvinyl alcohol for additive manufacturing of Inconel 718
Dr Mohammed Alsaddah (2022) – Diode area melting of Ti64
Dr Vimanyu Beedasy (2021) - Investigation into the effects of pulsed laser sintering on inkjet-printed functional materials for printed electronics
Dr Haider Ali (2020) - Evolution of Residual stress in Ti6Al4V components fabricated using selective laser melting
Dr Marco Galindo (2019) - Microstructural sensitive model for plastic deformation of Ti-6Al-4V
Dr Omar Lopez (2019) - Simulation of microstructural evolution of selective laser melted AA-2024
Dr Miguel Arrendondo (2019) - Diode area melting use of diode Lasers in additive manufacturing of metallic components
Dr Rafael Martinez (2018) - In situ alloying of elemental Al-Cu12 feedstock using selective laser melting
Dr Neil Harrison (2015) - Reduction of micro-cracking in nickel superalloys processed by selective laser melting: A fundamental alloy design approach
Mr Pratik Vora (2013) - AlSi12 In-situ alloy formation and residual stress reduction using anchorless selective laser melting