Dr Kamran Mumtaz
Department of Mechanical Engineering
Senior Lecturer
Postgraduate Admissions Tutor
k.mumtaz@sheffield.ac.uk
+44 114 222 7789
+44 114 222 7789
North Campus
Full contact details
Dr Kamran Mumtaz
Department of Mechanical Engineering
North Campus
Broad Lane
Sheffield
S3 7HQ
Department of Mechanical Engineering
North Campus
Broad Lane
Sheffield
S3 7HQ
- Profile
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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
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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 functional 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 the 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.
Patents
- 2009, A Method, Apparatus, Computer Readable Storage Medium and Computer Program for forming an object, [US 2011/0042031 A1]. Patent describes method for reducing stress build-up in metal components fabricated via SLM/DMLS, allowing components to be built without anchor/suppport structures.
- Publications
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Journal articles
- Additive manufacturing of high density carbon fibre reinforced polymer composites. Additive Manufacturing, 58.
- Diode area melting of Ti6Al4V using 808 nm laser sources and variable multi-beam profiles. Materials and Design, 215.
- Integrated fabrication of novel inkjet-printed silver nanoparticle sensors on carbon fiber reinforced nylon composites. Micromachines, 12(10). View this article in WRRO
- Semisolid heat treatment processing window of Pb-40% Sn alloy for feedstock in the 3D printing thixo-forming process. Materials Today: Proceedings.
- Use of 450-808 nm diode lasers for efficient energy absorption during powder bed fusion of Ti6Al4V. The International Journal of Advanced Manufacturing Technology.
- Effect of bed temperature on solute segregation and mechanical
properties in Ti-6Al-4V produced by selective laser melting. View this article in WRRO
- 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
- Effect of pre-emptive in-situ parameter modification on residual stress distributions within selective laser melted Ti6Al4V components. The International Journal of Advanced Manufacturing Technology. View this article in WRRO
- Fabricating poly(methyl methacrylate) parts using high-speed sintering. Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture. View this article in WRRO
- 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
- 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
- Investigating the melt pool properties and thermal effects of multi-laser diode area melting. The International Journal of Advanced Manufacturing Technology, 97(1-4), 1383-1396. View this article in WRRO
- Residual stress development in selective laser-melted Ti6Al4V: a parametric thermal modelling approach. The International Journal of Advanced Manufacturing Technology. View this article in WRRO
- 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
- Diode area melting single-layer parametric analysis of 316L stainless steel powder. The International Journal of Advanced Manufacturing Technology. View this article in WRRO
- Thermal expansion coefficients in Invar processed by selective laser melting. Journal of Materials Science, 52(17), 10517-10525. View this article in WRRO
- Customised Alloy Blends for In-Situ Al339 Alloy Formation Using Anchorless Selective Laser Melting. Technologies, 5(2). View this article in WRRO
- 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
- Laser diode area melting for high speed additive manufacturing of metallic components. Materials and Design, 117, 305-315. View this article in WRRO
- In-Built Customised Mechanical Failure of 316L Components Fabricated Using Selective Laser Melting. Technologies, 5(1). View this article in WRRO
- 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
- Two-dimensional simulation of grain structure growth within selective laser melted AA-2024. Materials and Design. View this article in WRRO
- 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
- AlSi12 in-situ alloy formation and residual stress reduction using anchorless selective laser melting. Additive Manufacturing, 7, 12-19. View this article in WRRO
- 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.
- Selective Laser Melting of thin wall parts using pulse shaping. J MATER PROCESS TECH, 210(2), 279-287. View this article in WRRO
- Selective laser melting of Inconel 625 using pulse shaping. Rapid Prototyping Journal, 16(4), 248-257. View this article in WRRO
- Top surface and side roughness
of Inconel 625 parts processed using
selective laser melting. Rapid Prototyping Journal, 15(2), 96-103. View this article in WRRO
- High density selective laser melting of Waspaloy (R). J MATER PROCESS TECH, 195(1-3), 77-87. View this article in WRRO
- Laser melting functionally graded composition of Waspaloy((R)) and Zirconia powders. J MATER SCI, 42(18), 7647-7656. View this article in WRRO
Conference proceedings papers
- Simulating the microstructural evolution of a Selective Laser Melted AA-2024. Solid Freeform Fabrication 2016: Proceedings of the 27th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2016 (pp 257-267) View this article in WRRO
- 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. View this article in WRRO
- 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. View this article in WRRO
- 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. View this article in WRRO
- Selective Laser Melting of Inconel 625 using Pulse Shaping. Proc. Solid Freeform Fabrication Symposium (pp 165-178). Austin Texas, USA, August 2011. View this article in WRRO
- Benchmarking capabilities of SLM and EBM to build overhangs without supports
- High Density Selective Laser Melting of Waspaloy. Proc. Solid Freeform Fabrication Symposium (pp 220-232). Austin Texas, USA, August 2011. View this article in WRRO
Patents
- Method, apparatus, computer readable storage medium and computer program for forming an object. US 2011/0042031 A1 (US). Appl. 24 Feb 2011.
- Additive manufacturing of high density carbon fibre reinforced polymer composites. Additive Manufacturing, 58.
- Teaching interests
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- MEC215/209 Design of Engineering Structures and Components
- MEC307 Group Design Project (contributor)