Paul Mativenga

ORCID: 0000-0002-7583-5163
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About
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Research Areas
  • Advanced machining processes and optimization
  • Advanced Machining and Optimization Techniques
  • Advanced Surface Polishing Techniques
  • Manufacturing Process and Optimization
  • Laser Material Processing Techniques
  • Metal and Thin Film Mechanics
  • Energy Efficiency and Management
  • Recycling and Waste Management Techniques
  • Metal Alloys Wear and Properties
  • Additive Manufacturing Materials and Processes
  • Additive Manufacturing and 3D Printing Technologies
  • Tunneling and Rock Mechanics
  • Microplastics and Plastic Pollution
  • Sustainable Supply Chain Management
  • Fiber-reinforced polymer composites
  • Tribology and Lubrication Engineering
  • Welding Techniques and Residual Stresses
  • Diamond and Carbon-based Materials Research
  • Adhesion, Friction, and Surface Interactions
  • Metallurgy and Material Forming
  • Advanced materials and composites
  • Building Energy and Comfort Optimization
  • Engineering Technology and Methodologies
  • Environmental Impact and Sustainability
  • Shape Memory Alloy Transformations

University of Manchester
2016-2025

University of Johannesburg
2018-2024

Manchester University
2016

MathWorks (United States)
2010

Apple (United States)
2010

University of Pretoria
2008

10.1016/j.precisioneng.2008.11.002 article EN Precision Engineering 2008-11-28

The increased usage of composites in industry coupled with European Union restrictions on landfill disposal has resulted an urgent need to develop resource efficient recycling technologies. purpose this work was model the electrical energy requirements milling as a option for carbon fibre composite. By separating contributions total required machine tool, material cutting and removal rate, demand composite can be theoretically calculated any process. validated experimentally by comparing...

10.1016/j.jclepro.2014.06.023 article EN cc-by Journal of Cleaner Production 2014-06-24

10.1016/j.ijmachtools.2008.05.011 article EN International Journal of Machine Tools and Manufacture 2008-06-11

10.1016/j.ijmachtools.2005.04.009 article EN International Journal of Machine Tools and Manufacture 2005-05-27

Increased demand of fibre reinforced plastic (FRP) composites has led to high volumes manufacturing scrap and end-of-life waste. Restrictions on landfill disposal the energy for virgin material production call cost effective composite recycling technology. Unfortunately there is limited integrity environmental related data in literature, help assess life cycle benefits recycling, particularly glass (GFRP). In this work new approaches based bottom-up unit process modelling were used model...

10.1016/j.jclepro.2016.01.070 article EN cc-by Journal of Cleaner Production 2016-02-03

10.1016/j.ijmachtools.2011.01.004 article EN International Journal of Machine Tools and Manufacture 2011-02-03

Global increase of composite waste urgently requires innovative recycling technology. The three dimensional cross-linked structure makes melting and remoulding thermoset impossible. In this study, high voltage fragmentation, originally conceived for fracturing rocks was investigated as a potential process recycling. It then benchmarked against its competitor, mechanical investigation covered effectiveness in separating phases, energy demand recyclate quality. work is new contribution to the...

10.1016/j.cirp.2016.04.107 article EN cc-by CIRP Annals 2016-01-01

Multiple international organizations and many governments around the world have declared climate emergency. There is a pressing need to minimize environmental impacts of human activities including manufacturing processes. Machining by mechanical cutting fundamental process minimizing eliminating its vital. In this keynote paper, sustainability in context machining identified. The resources used been categorized social potential methods reduce them findings are critically discussed gaps...

10.1016/j.cirp.2024.06.001 article EN cc-by CIRP Annals 2024-01-01

Carbon fibre reinforced polymer (CFRP) is increasingly being used in the aerospace, marine, and land transport due to its lightweight, corrosion resistance, high strength. However, hole drilling during assembly remains challenging extensive tool wear delamination. Laser processing, typically for machining, often produces heat effects or low efficiency if ultrashort pulse lasers are used. Here, we report an optimised result a tailored sequence multiple-ring scanning laser method that...

10.1016/j.compositesb.2023.111156 article EN cc-by Composites Part B Engineering 2024-01-04

10.1016/j.ijmachtools.2005.03.008 article EN International Journal of Machine Tools and Manufacture 2005-04-28

10.1007/s00170-011-3427-y article EN The International Journal of Advanced Manufacturing Technology 2011-06-17

10.1007/s00170-008-1393-9 article EN The International Journal of Advanced Manufacturing Technology 2008-02-08

The growing use of carbon-fibre-reinforced polymer (CFRP) composites as high-performance lightweight materials in aerospace and automotive industries demands efficient low-cost machining technologies. laser for cutting drilling is attractive owing to its high speed, flexibility, ease automation. However, the anisotropic material properties composites, issues related heat-affected zone (HAZ), charring, potential delamination during processing, are major obstacles industrial applications. In...

10.1243/09544054jem1662 article EN Proceedings of the Institution of Mechanical Engineers Part B Journal of Engineering Manufacture 2010-01-07

The large differences in physical and thermal properties of the carbon fibre-reinforced polymer (CFRP) composite constituents make laser machining this material challenging. An extended heat-affected zone (HAZ) often occurs. availability ultrashort pulse sources such as picosecond lasers makes it possible to improve quality these materials. This paper reports an investigation on drilling CFRP composites using a state-of-the-art 400 W system. Small HAZs (<25 µm) were obtained entry side...

10.1007/s00339-016-9607-8 article EN cc-by Applied Physics A 2016-01-22
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