Professor Kamran Mumtaz

School of Mechanical, Aerospace and Civil Engineering

Professor

PGT Admissions Tutor

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

Sir Frederick Mappin Building

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

Profile: Kamran Mumtaz is a lecturer in the Department of Mechanical Engineering. He has a first class degree in Aeronautical Engineering from the University of Salford, Manchester, an MSc in Manufacturing Management and a PhD from Loughborough University.

Research interests

Kamran's research is in the area of Additive Manufacturing (AM) (also known as 3D printing and Rapid Manufacturing), a layer by layer process which produces fully functionally parts directly from a CAD model.

Kamran has been involved in AM since 2005 and specialises in metals process and materials development. He has worked with a number of AM technologies such as Selective Laser Melting (SLM), Direct Metal Laser Sintering (DMLS) and Electron Beam Melting (EBM) processing a variety of aluminium, cobalt, nickel, steel and titanium alloys for aerospace, automotive and medical industries.

He has completed a range of research projects, publishing widely and winning two international best paper awards. He has worked closely with industry users of AM, focusing on understanding limitations of the technology in a manufacturing environment and commercialisation of new materials.

Kamran is also involved in multi-material deposition during AM, producing functionally graded components allowing the user to tailor specific properties across a component. He is interested in AM of ceramics and has worked with grading from metal to ceramic materials for turbine blade applications.

Publications

Journal articles

Paul S, Smith PJ & Mumtaz K (2024) Use of aqueous polyvinyl alcohol in binder jetting of Inconel 718. The International Journal of Advanced Manufacturing Technology, 135(5-6), 2355-2372. View this article in WRRO
Genç K, Toyting S, Galindo-Nava E, Todd I & Mumtaz K (2024) Laser powder bed fusion of NdFeB and influence of powder bed heating on density and magnetic properties. The International Journal of Advanced Manufacturing Technology, 132(9-10), 5017-5038. View this article in WRRO
CAGLAR H, LIANG A, GROOM K & MUMTAZ K (2024) “Multi-laser powder bed fusion of Ti6Al4V: diode area melting utilizing low-power 450 nm diode lasers”. Journal of Materials Processing Technology. View this article in WRRO
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) Effect of substrate bed temperature on solute segregation and mechanical properties in Ti–6Al–4V produced by laser powder bed fusion. Metallurgical and Materials Transactions A, 54(8), 3069-3085. View this article in WRRO
Karaş B, Smith PJ, Fairclough JPA & Mumtaz K (2022) Additive manufacturing of high density carbon fibre reinforced polymer composites. Additive Manufacturing, 58.
Alsaddah M, Khan A, Groom K & Mumtaz K (2022) Diode area melting of Ti6Al4V using 808 nm laser sources and variable multi-beam profiles. Materials and Design, 215.
Karaş B, Beedasy V, Leong Z, Morley NA, Mumtaz K & Smith PJ (2021) Integrated fabrication of novel inkjet-printed silver nanoparticle sensors on carbon fiber reinforced nylon composites. Micromachines, 12(10).
Alsaddah M, Khan A, Groom K & Mumtaz K (2021) Use of 450-808 nm diode lasers for efficient energy absorption during powder bed fusion of Ti6Al4V. The International Journal of Advanced Manufacturing Technology, 113(9-10), 2461-2480.
Bharaj K, Paul S, Mumtaz KA, Chisholm M & Hopkinson N (2020) Fabricating poly(methyl methacrylate) parts using high-speed sintering. Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, 234(1-2), 118-125. View this article in WRRO
Ali H, Ghadbeigi H, Hosseinzadeh F, Oliveira J & Mumtaz K (2019) Effect of pre-emptive in-situ parameter modification on residual stress distributions within selective laser melted Ti6Al4V components. International Journal of Advanced Manufacturing Technology, 103(9-12), 4467-4479. View this article in WRRO
Martinez R, Todd I & Mumtaz K (2019) In situ alloying of elemental Al-Cu12 feedstock using selective laser melting. Virtual and Physical Prototyping, 14(3), 242-252. View this article in WRRO
Galindo-Fernandez M, Mumtaz KA, Rivera-Diaz-del-Castillo PEJ, Galindo-Nava EI & Ghadbeigi H (2018) A microstructure sensitive model for deformation of Ti-6Al-4V describing Cast-and-Wrought and Additive Manufacturing morphologies. Materials and Design, 160, 350-362. View this article in WRRO
Ali H, Ghadbeigi H & Mumtaz KA (2018) Processing Parameter Effects on Residual Stress and Mechanical Properties of Selective Laser Melted Ti6Al4V . Journal of Materials Engineering and Performance, 27(8), 4059-4068. View this article in WRRO
Ali H, Ghadbeigi H & Mumtaz KA (2018) Residual stress development in selective laser-melted Ti6Al4V: a parametric thermal modelling approach. International Journal of Advanced Manufacturing Technology, 97(5-8), 2621-2633. View this article in WRRO
Zavala-Arredondo M, Ali H, Groom KM & Mumtaz KA (2018) Investigating the melt pool properties and thermal effects of multi-laser diode area melting. International Journal of Advanced Manufacturing Technology, 97(1-4), 1383-1396. View this article in WRRO
Ali H, Ghadbeigi H & Mumtaz KA (2018) Effect of scanning strategies on residual stress and mechanical properties of Selective Laser Melted Ti6Al4V. Materials Science and Engineering: A, 712, 175-187. View this article in WRRO
Zavala-Arredondo M, Groom KM & Mumtaz KA (2018) Diode area melting single-layer parametric analysis of 316L stainless steel powder . The International Journal of Advanced Manufacturing Technology, 94, 2563-2576. View this article in WRRO
Vora P, Martinez R, Hopkinson N, Todd I & Mumtaz KA (2017) Customised Alloy Blends for In-Situ Al339 Alloy Formation Using Anchorless Selective Laser Melting. Technologies, 5(2). View this article in WRRO
Ali H, Ma L, Ghadbeigi H & Mumtaz K (2017) In-situ residual stress reduction, martensitic decomposition and mechanical properties enhancement through high temperature powder bed pre-heating of Selective Laser Melted Ti6Al4V. Materials Science and Engineering: A, 695, 211-220. View this article in WRRO
Zavala-Arredondo M, Boone N, Willmott J, Childs DTD, Ivanov P, Groom KM & Mumtaz K (2017) Laser diode area melting for high speed additive manufacturing of metallic components. Materials and Design, 117, 305-315.
Mumtaz KA & ali H (2017) In-Built Customised Mechanical Failure of 316L Components Fabricated Using Selective Laser Melting. Technologies, 5(1). View this article in WRRO
Pitt K, Lopez O, Lafferty AD, Todd I & Mumtaz KA (2017) Investigation into the material properties of wooden composite structures with in-situ fibre reinforcement using additive manufacturing. Composites Science and Technology, 138, 32-39. View this article in WRRO
Lopez-Botello O, Martinez-Hernandez U, Ramírez J, Pinna C & Mumtaz KA (2017) Two-dimensional simulation of grain structure growth within selective laser melted AA-2024. Materials and Design, 113, 369-376. View this article in WRRO
Mumtaz KA, Todd I, Hopkinson N & Vora P (2015) AlSi12 In-Situ Alloy Formation and Residual Stress Reduction using Anchorless Selective Laser Melting. Additive Manufacturing, 7, 12-19. View this article in WRRO
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) Selective Laser Melting of thin wall parts using pulse shaping. J MATER PROCESS TECH, 210(2), 279-287.
Mumtaz KA & Hopkinson (2010) Selective laser melting of Inconel 625 using pulse shaping. Rapid Prototyping Journal, 16(4), 248-257.
Mumtaz KA & hopkinson (2009) Top surface and side roughness of Inconel 625 parts processed using selective laser melting. Rapid Prototyping Journal, 15(2), 96-103.
Mumtaz KA, Erasenthiran P & Hopkinson N (2008) High density selective laser melting of Waspaloy (R). J MATER PROCESS TECH, 195(1-3), 77-87.
Mumtaz KA & Hopkinson N (2007) Laser melting functionally graded composition of Waspaloy((R)) and Zirconia powders. J MATER SCI, 42(18), 7647-7656.
Harrison N, Todd I & Mumtaz K () Thermal expansion coefficients in Invar processed by selective laser melting. Journal of Materials Science. View this article in WRRO
Mumtaz KA, Harrison N & todd I () Reduction of micro-cracking in nickel superalloys processed by Selective Laser Melting: A fundamental alloy design approach. Acta Materialia, 94, 59-68. View this article in WRRO

Conference proceedings papers

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. View this article in WRRO
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 () Semisolid heat treatment processing window of Pb-40% Sn alloy for feedstock in the 3D printing thixo-forming process. Materials Today: Proceedings. Uttarakhand, India, 1 May 2021 - 1 May 2021. View this article in WRRO
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 View this article in WRRO
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

MEC215/209 Design of Engineering Structures and Components
MEC307 Group Design Project (contributor)