Staff Directory


Aishah Najiah Bt. Dahnel

Academic Qualifications

  • Doctor of Philosophy in Engineering - Doctor of Philosophy, University of Warwick
  • Bachelor of Engineering (Manufacturing) (Honours) - Bachelor Degree, International Islamic University Malaysia

Aishah Najiah Bt. Dahnel (Assoc. Prof. Dr.)

Associate Professor
IIUM Gombak Campus

KULLIYYAH OF ENGINEERING

aishahnajiah@iium.edu.my
3328


Professional Membership


  • 2018 : Member of Profesional Body / Association: (Graduate Member (No. Perakuan: 1818-060300-GE-154786A(155604)) (No. Pendaftaran: 154786A)), Board of Engineers Malaysia
  • 2024 - 2024 : Member of Profesional Body / Association: (Taskforce Member), IIUM ACADEMY of Graduate and Professional Studies


Teaching Responsibilities


COMPUTER AIDED DRAWING 2025/2026 2024/2025 2023/2024 2022/2023 2021/2022 2020/2021
COMPUTER INTERGRATED MANUFACTURING (CIM) 2018/2019
ENGINEERING DRAWING 2022/2023 2020/2021 2019/2020 2018/2019 2017/2018
ENGINEERING MANAGEMENT II 2017/2018
FINAL YEAR PROJECT 2 2025/2026 2024/2025
FINAL YEAR PROJECT II 2024/2025 2023/2024 2022/2023 2019/2020
INDUSTRIAL TRIBOLOGY 2025/2026 2024/2025 2023/2024
INTEGRATED DESIGN PROJECT 2019/2020 2018/2019
INTERGRATED DESIGN PROJECT 2019/2020 2018/2019
MANUFACTURING ENGINEERING LAB III 2018/2019
MANUFACTURING ENGINEERING LAB III 2018/2019
MANUFACTURING LAB 2 2025/2026 2024/2025 2023/2024 2022/2023
MECHANICAL DESIGN AND VIBRATION 2025/2026 2024/2025 2023/2024 2022/2023
PROJECT I 2019/2020 2018/2019
TECHNOLOGY ENTREPRENEURSHIP 2021/2022 2020/2021 2019/2020
USRAH IN ACTION 1 2024/2025 2023/2024
USRAH IN ACTION 2 2025/2026 2024/2025
VALUE ANALYSIS AND VALUE ENGINEERING 2023/2024 2022/2023 2021/2022
VIBRATION AND MECHANICS OF MACHINE 2024/2025 2023/2024 2022/2023 2021/2022 2020/2021 2019/2020 2018/2019 2017/2018
WORKSHOP TECHNOLOGY 2018/2019 2017/2018


Supervision


Development Of Clove Bud Drying Process For Small To Medium Enterprises.
Ph.D Completed 2022 Co-supervisor
Experimental Investigation On Machining Performance And Surface Quality During Milling Of Cfrp In Different Cutting Conditions.
Ph.D In Progress Co-supervisor
The Influence Of Cutting Parameters On Tool Wear And Surface Quality In Milling Of Carbon Fiber Reinforced Polymers.
Master Completed 2026 Co-supervisor
Predicting Tribological Performance Of Liquid Lubricants And Coated-Surfaces By Machine Learning Approaches.
Master Completed 2025 Co-supervisor
Wear Mechanism Of Carbide Cutting Tool During Milling Different Fiber Orientations Of Carbon Fiber Reinforced Plastic (Cfrp).
Master Completed 2023 Co-supervisor
Evaluation Of Tool Wear And Machined Surface Integrity When Drilling Aluminium Alloy 7075 Under Cold Air And Dry Conditions.
Master Completed 2022 Main Supervisor
Experimental Study On The Aluminum Alloy 7075 During Turning Under Dry And Minimal Quantity Lubrication Conditions.
Master Completed 2021 Co-supervisor
Tribological Performance Of Biodegradable Palm Oil-Based Lubricant Enhanced With Additives Under Varying Load And Speed Conditions.
Master In Progress Main Supervisor


Research Projects


Completed
2022 - 2025 Food Security for People at Remote Area - Implementation of Symbiotic System of Fish and Vegetable Farming
2018 - 2023 Wear Mechanism of Carbide Tool during Milling Carbon Fiber Reinforced Plastic (CFRP) at Different Fiber Orientation
2018 - 2023 Investigation of chip morphology and surface integrity during dry drilling of aluminium 7075.
On-Going
2025 - Present Program Pemindahan Ilmu dan Peningkatan Sosio-Ekonomi Isi Rumah Melalui Pertanian Akua-Ponik
2025 - Present Transformasi Sisa ke Rahmat: Penyelesaian berasaskan komuniti untuk kemampanan alam sekitar dan ekonomi di Kampung Sungai Pusu, Gombak Selangor
2021 - Present Thermal degradation mechanism and surface behavior of CFRP composite during milling process
2018 - Present Tribological behavior of Al 7075-T6 during turning process in green environment.
2018 - Present Investigation on the temperatures effect in drilling woven natural fiber reinforced polymer (NFRP) composites


Publications


Articles

2023 Properties and tribological evaluation of graphene and fullerene nanoparticles as additives in oil lubrication. Proceedings of the Institution of Mechanical Engineers, Part J: Journal of Engineering Tribology, 237 (8) pp. 1647-1656
2023 Tool wear and wear mechanism of WC-Co End Mill during milling of CFRP in sustainable cutting conditions. Materials Science Forum, 1109 () pp. 153-158
2022 Analysis of defects on machined surfaces of aluminum alloy (Al 7075) using imaging and topographical techniques. International Journal of Metrology and Quality Engineering (IJMQE), 13 () pp. 1-8
2022 Comparison of tool wear mechanisms during drilling of aluminium alloy 7075 in dry and chilled air conditions. Journal of Science and Technology, 14 (1) pp. 67-74
2022 Optimization of machining parameters values during milling on carbon fiber reinforced plastic (CFRP) using RSM. Malaysian Tribology Society, 34 () pp. 24-38
2022 Optimization study on width of cut and cutting-edge radius during side milling of DAC 55 steel. Jurnal Tribologi, 33 () pp. 125-136
2022 Tool wear and burr formation during drilling of aluminum alloy 7075 in dry and with cutting fluid. Materials Today: Proceedings, 59 (2022) pp. 808-813
2021 IIUM designs electric motorbike. Asia Research News, 31 August 2021 () pp.
2021 The effect of chilled air on burr formation when drilling aluminium alloy in manufacturing industry. International Journal of Progressive Sciences and Technologies (IJPSAT), 28 (1) pp. 437-445
2021 The investigation of PVD coating, cryogenic lubrication and ultrasonic vibration on tool wear and surface integrity in manufacturing processes. Jurnal Tribologi, 28 () pp. 105-116
2020 A review on the application of various MQL base in metal cutting operation of aluminum alloys. Test Engineering and Management, May-June 2020 () pp. 1168-1174
2020 An experimental investigation on drilling of aluminum alloy (Al 7075) using high speed steel cutting tools. TEST: Engineering & Management, 83 (May-June) pp. 1451 -1456
2020 Cutting tool performance in turning of AL 7075-t651 aluminium alloy. IIUM Engineering Journal, 21 (2) pp. 177-185
2020 Effects of drilled area temperatures on drilling of NFRP composites: a review. TEST Engineering & Management, 83 (May – June 2020) pp. 1314 -1321
2020 The effect of cutting parameters on tool wear in drilling aluminium 7075. TEST Engineering & Management, 83 (May-June) pp. 1274-1280
2017 A metrological inspection method using micro-CT for the analysis of drilled holes in CFRP and titanium stacks. International Journal of Advanced Manufacturing Technology, 88 (5-8) pp. 1417-1427
Conference or Workshop Items

2023 Hardness and microstructural analysis of recycled aluminum 7075. In: 11th International Symposium on Applied Engineering and Sciences (SAES2023),
2023 Influence of cutting edge radius (CER) and width of cut (WOC) on tool wear in milling SUS 316 stainless steel. In: Proceeding of 5th International Conference on Advances in Manufacturing and Materials Engineering,
2023 Investigation of chip formation during turning of aluminum alloys 7075-T651 in dry and chilled air condition. In: 5th International Conference on Advances in Manufacturing and Materials Engineering,
2023 Machining performance of carbide insert in turning aluminum alloy 7075-T651. In: International Conference on Manufacturing Engineering Technology (ICONMET 2021),
2022 Friction and wear behaviours of hard-coated/uncoated bearing steels under nano-additive oil lubrication. In: 3rd Malaysian International Tribology Conference, MITC 2020,
2022 Optimization of machining parameters during milling of carbon fibre reinforced plastics. In: 3rd Malaysian International Tribology Conference, MITC 2020,
2022 Tool wear and burr formation during drilling of aluminum alloy 7075 in dry and with cutting fluid. In: Third International Conference on Recent Advances in Materials and Manufacturing 2021,
2020 An investigation of hole quality during drilling of carbon fibre reinforced plastic and titanium (Ti6Al4V) using tungsten carbide drills. In: ,
2020 An investigation of hole quality during drilling of carbon fibre reinforced plastic and titanium (Ti6Al4V) using tungsten carbide drills. In: 4th Advanced Materials Conference 2018 (AMC 2018),
2020 Environmental-friendly tribological and lubrication in manufacturing processes. In: 4th International Conference on Sustainable Materials (e-ICoSM) 2020),
2016 The effect of varying cutting speeds on tool wear during conventional and Ultrasonic Assisted Drilling (UAD) of Carbon Fibre Composite (CFC) and titanium alloy stacks. In: 7th CIRP Conference on High Performance Cutting, HPC 2016,
2016 Ultrasonic assisted machining. In: The 17th International Conference on Machine Design and Production,
2015 Analysis of tool wear and hole quality during Ultrasonic Assisted Drilling (UAD) of Carbon Fibre Composite (CFC)/titanium alloy (Ti6Al4V) stacks. In: ASME 2015 International Mechanical Engineering Congress and Exposition, IMECE 2015,
2015 Study of cutting forces and surface roughness in milling of Carbon Fibre Composite (CFC) with conventional and pressurized CO2 cutting fluids. In: ASME 2015 International Mechanical Engineering Congress and Exposition, IMECE 2015,
2014 Drilling of carbon fibre composites: a review. In: 1st International Manufacturing Engineering Conference (iMEC) 2013,
2013 Experimental analysis of tool wear when drilling carbon fibre composite (CFC) without cutting fluid, with cutting fluid and with a pre-cryogenically cooled tool. In: 2nd International Conference on Advanced Materials Design and Mechanics (ICAMDM 2013),
2011 The application of Quality Function Deployment (QFD) and Rapid Prototyping (RP) technology in improving the design of anti sleep driving alarm. In: Proceedings of the 2011 International Conference on Industrial Engineering and Operations Management,
Book Sections

2024 The influence of cutting conditions on surface roughness and chemical properties behaviour of CFRP during milling. In: Department Mechanical & Manufacturing Engineering Faculty of Engineering Universiti Putra Malaysia, ISBN: , pp. 70-74
2022 Drilling of 7075 Aluminum Alloys. In: Intech Open, ISBN: , pp.
2022 Drilling of 7075 aluminum alloys. In: Intech Open, ISBN: , pp.
2020 Tribology of Composite Materials and Coatings in Manufacturing. In: Springer, Singapore, ISBN: , pp. 283-308