Institutional Network for Design and Manufacturing Education & Training     
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Publications

        2025

  1. Tolcha, Mesay Alemu, Lemu, Hirpa and Yosef W. Adugna (2025), 
    Optimizing economics of machining for LM25Al/VC composite material using analytical modeling, deep neural network and GRA coupled RSM, Scienfic Reports, (2025) 15 -10215 https://doi.org/10.1038/s41598-025-95446-4

  2. Gutema, Endalkachew M. Gopal, M. and Lemu, Hirpa G., (2025).
    Tribological Study of Multi-Walled Carbon Nanotube-Reinforced Aluminum7075 Using Response Surface Methodology and Multi-Objective Genetic Algorithm. Journal of Composite Science, vol. 9, 137. https:// doi.org/10.3390/jcs9030137

  3. A. D. Hirpa, E. M. Gutema, H.G. Lemu and M. Gopal (2025), Comparative Study of Machining Parameters of Single and Double Cutting Tools During Turning of AISI 1045 Steel, Recent Patents on Engineering, vol. 19(4), DOI: 10.2174/0118722121310810240621095952 

  4. A. Merga, E. M. Gutema,  M. Gopal and H.G. Lemu (2025), Numerical Simulation of Temperature Distribution and Residual Stress in Laser Beam Welding AA6061 and Ti-6Al-4V and Optimization of Welding Processes, Recent Patents on Engineering, vol. 19(4), DOI: 10.2174/0118722121310962240605094216

  5. F. D. Gurmesa, H.G. Lemu, W.M. Tucho and A.D. Akessa (2025) Effects of wire diameter on mechanical and microstructural properties of Inconel 625 fabricated by wire arc additive manufacturing, Journal of Materials Research and Technology, vol. 35, 3226–3235. https://doi.org/10.1016/j.jmrt.2025.02.025.

  6. M. Tiki, H.G.Lemu and E. Mosisa (2025) Review of Recent Advancements in 3D Printing Technologies for Textile Applications. Textile & Leather Review. vol. 8:72-104. https://doi.org/10.31881/TLR.2024.169

  7. N.D. Dejene, W.M. Tucho and H.G. Lemu (2025) Effects of Scanning Strategies, Part Orientation, and Hatching Distance on the Porosity and Hardness of AlSi10Mg Parts Pro-duced by Laser Powder Bed Fusion, Journal of Materials Research and Technology, vol. 35, 3226–3235. https://doi.org/10.1016/j.jmrt.2025.02.025.

     2024

  8. Tolcha, Mesay Alemu, Gebrehiwot, T.M. and Lemu, Hirpa (2024), 
    Enhancing Mechanical Properties of Cast Ingot Al6061 Alloy Using ECAP Process. J. of Materi Eng and Perform (2024). https://doi.org/10.1007/s11665-024-09978-3 

  9. Tolcha, Mesay Alemu, and Lemu, Hirpa (2024), 
    Modeling thermo-mechanical fatigue for rolling die under continuous casting process, Results in Engineering, vol. 23, 102577. https://doi.org/10.1016/j.rineng.2024.102577 

  10. Tolcha, Mesay Alemu, and Lemu, Hirpa (2024), 
    Parametric optimizing of electro-discharge machining for LM25Al/VC composite material machining using deterministic and stochastic methods, The International Journal of Advanced Manufacturing Technology, 1-26. https://doi.org/10.1007/s00170-024-13221-7 

  11. Gutema, Endalkachew M. and Lemu, Hirpa G., (2024).
    Conventional Machining of Metal Matrix Composites towards Sustainable Manufacturing – Present scenario and future prospects. J. Compos. Sci. vol. 8(9), 356; https://doi.org/10.3390/jcs8090356

  12. Dejene, Naol D.; Lemu, Hirpa G., Gutema, Endalkachew M. (2024),
    Effects of process parameters on the surface characteristics of laser powder bed fusion printed parts: machine learning predictions with random forest and support vector regression. The International Journal of Advanced Manufacturing Technology, 1-15. https://doi.org/10.1007/s00170-024-14087-5 

  13. Gurmesa, Fakada D.; Lemu, Hirpa G.; Adugna, Yosef W.; and Harsibo, Mesfin D. (2024),
         Residual Stresses in Wire Arc Additive Manufacturing Products and Their Measurement Techniques: A Systematic Review. Applied Mechanics, vol. 5(3), 420 - 449. https://doi.org/10.3390/applmech5030025 

  14. Efa, Dame A.; Gutema, Endalkachew M.; Lemu, Hirpa G.; and Gopal, Mahesh (2024),
    Modeling and Simulation of Friction Stir Welding of Aluminum and Magnesium Alloys Using Finite Element Analysis, Key Engineering Materials, vol. 980, 15 -29. https://www.scientific.net/KEM.980.15 

  15. Efa, Dame A.; Gutema, Endalkachew M.; Lemu, Hirpa G.; and Gopal, Mahesh (2024),
    Optimization of Titanium Alloy-Ti-6Al-4V to Minimize Mass, Maximize Stiffness and Frequency in Additive Manufacturing, Key Engineering Materials, vol. 980, 3 -13. https://www.scientific.net/KEM.980.3 

  16. Efa, Dame A.; Gutema, Endalkachew M.; Lemu, Hirpa G.; and Gopal, Mahesh (2024),
    Analyzing the Effect of Temperature on Alloy Steel Forging Simulation Using Finite Element Simulation, Key Engineering Materials, vol. 979, 81 -92. https://www.scientific.net/KEM.979.81 

  17. Gopal, Mahesh,  Gutema, Endalkachew Mosisa, Lemu, Hirpa G. and Sori, Jaleta (2024), 
    A Hybrid Nondominant-Based Genetic Algorithm (NSGA-II) for Multiobjective Optimization to Minimize Vibration Amplitude in the End Milling Process, Advances in Materials Science and Engineering, vol. 2024, https://doi.org/10.1155/2024/6652973

  18. Lema, Tekalign , Lemu, Hirpa G. and Gutema, Endalkachew Mosisa (2024),
    Impacts of Adopting Additive Manufacturing Process on Supply Chain: Systematic Literature Review, vol. 8(3) https://doi.org/10.1155/2024/6652973

  19. Lemma, T., Lemu, H.G. and Gutema, E.M. (2024), 
    Studying the moderating effects of additive manufacturing best practices between supply chain complexity and its performance. Logistics, 8, 112. https://doi.org/10.3390/logistics8040112.

  20. Hirpa, Atomsa Demiso, Gutema, Endalkachew Mosisa, Lemu, Hirpa G., Gopal, Mahesh (2024),
    Comparative Study of Machining Parameters of Single and Double Cutting Tools During Turning of AISI 1045 Steel, International Conference on Application of Recent Technologies in Science, Engineering, Management for Societal and Industrial Development (ICASEM 2024).

  21. Merga, Alemu, Gutema, Endalkachew Mosisa, Lemu, Hirpa G., Gopal, Mahesh (2024),
    Numerical Simulation of Temperature Distribution and Residual Stress in Laser Beam Welding AA6061 and Ti-6Al-4V and Optimization of Welding Processes , International Conference on Application of Recent Technologies in Science, Engineering, Management for Societal and Industrial Development (ICASEM 2024

    22. 2023

  22. Dejene, Naol D.; Lemu, Hirpa G. (2023),
    Current Status and Challenges of Powder Bed Fusion-Based Metal Additive Manufacturing: Literature Review. Metals 2023 ;Vol. 13.(2) s.

  23. Dejene, Naol D.; Lemu, Hirpa G.; Gutema, Endalkachew Mosisa (2023), 
    Critical Review of Comparative Study of Selective Laser Melting and Investment Casting for Thin-Walled Parts. Materials 2023 ;Volum 16.(23).

  24. Efa, Dame Alemayehu, Gutema, Endalkachew Mosisa, Lemu, Hirpa G., Gopal, Mahesh (2023),
    Friction stir-welding of AZ31B Mg and 6061-T6 Al alloys optimization using Box-Behnken design (BBD) and Artificial Neural network (ANN), Research on engineering structures and materials,  http://dx.doi.org/10.17515/resm2023.50ma0703rs

  25. Gopal, Mahesh; Lemu, Hirpa G.; Gutema, Endalkachew Mosisa (2023),
    Sustainable Additive Manufacturing and Environmental Implications: Literature Review. Sustainability 2023 ;Volum 15.

  26. Gurmesa, Fakada Dabalo; Lemu, Hirpa G. (2023),
    Literature Review on Thermomechanical Modelling and Analysis of Residual Stress Effects in Wire Arc Additive Manufacturing. Metals 2023 ;Volum 13.(3)

  27. Irena, Kitesa Akewaq; Lemu, Hirpa G.; Kedir, Yahiya Ahmed (2023),
    Effect of Interference Size on Contact Pressure Distribution of Railway Wheel Axle Press Fitting. Designs 2023 ;Volum 7.(5)

  28. Kedir, Yahiya Ahmed; Lemu, Hirpa G. (2023),
    Prediction of Fatigue Crack Initiation under Variable Amplitude Loading: Literature Review. Metals 2023 ;Volum 13.(3)

  29. Lemma, Tekalign; Gutema, Endalkachew Mosisa; Lemu, Hirpa G..
    Additive manufacturing best practices and its impact on supply chain performance through structural equation modelling: A case study in Ethiopian footwear industry. IOP Conference Series: Materials Science and Engineering 2023 ;Volum 1294.

  30. Lemma, Tekalign; Lemu, Hirpa G.; Gutema, Endalkachew Mosisa (2023),
    Assessment of awareness levels towards additive manufacturing best practices in transforming traditional manufacturing: A case study in Ethiopian context. IOP Conference Series: Materials Science and Engineering 2023 ;Volum 1294.

  31. Tolcha, Mesay Alemu; Lemu, Hirpa G. (2023),
    Utilizing multiple criteria decision-making optimization methods to machine LM25Al/VC material under electro-discharge machining processes. IOP Conference Series: Materials Science and Engineering 2023

  32. Tura, Amanuel; Lemu, Hirpa G.; Melaku, Lingerew E; Mamo, Hana B. (2023),
    Impact of FDM 3D printing parameters on compressive strength and printing weight of PLA components. I: Advanced Manufacturing and Automation XII. Conference proceedings IWAMA 2022.. Springer 2023 ISBN 978-981-19-9338-1. s. 495-504

  33. Yadeta, L.; Lemu, Hirpa G.; Tadese, A.K.M. (2023),
    Numerical analysis of centrifugal water pump impeller under varying loads. IOP Conference Series: Materials Science and Engineering 2023 ;Volum 1294:

    2022

  34. Tolcha, Mesay Alemu, Ademe, Getachew A., Jelila, Yohannis D. Jiru, Moera G. and Lemu, Hirpa (2022),
    Analyzing the effect of vibration on crack growth on shaft using fuzzy logic, Meccanica, vol. 57(12), 2929 - 2946. https://doi.org/10.1007/s11012-022-01609-2