Teknomekanik is an international, peer-reviewed journal that publishes high-quality original research articles for the global scientific community. By disseminating innovative research in engineering and related disciplines, Teknomekanik aims to foster academic exchange, strengthen international research collaboration, and advance scientific and technological knowledge in support of the Sustainable Development Goals (SDGs). View full aims & scope

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Journal Insights

Publication Frequency

Three issues per year
February • June • October

ISSN

2621-8720 (Online)
2621-9980 (Print)

Article Processing Charge (APC)

USD 350 ✓ Paid after Acceptance

Organizer

Department of Mechanical Engineering, Faculty of Engineering, Universitas Negeri Padang

Open Access

All published articles are freely accessible immediately upon publication without subscription or access fees.

Subject Areas

Chemical Engineering (Miscellaneous); Electrical and Electronic Engineering; Engineering (Miscellaneous); Mechanical Engineering; Ocean Engineering

Proofreading Service (if required)

An additional English language proofreading fee of USD 250–350 may apply to manuscripts that do not meet the journal's language quality standards.

Publishing Timeline

15-20 Days
Submission to First Editorial Decision
60-90 Days
Review Time
100-120 Days
Submission to Acceptance

Recent Issues (2023–Present)

 
2023
2024
2025
2026

Announcements

Current Issue

Vol. 9 No. 3 (2026): Regular Issue
					View Vol. 9 No. 3 (2026): Regular Issue

The articles published in Teknomekanik Volume 9, Issue 3 (2026) present recent developments in mechanical engineering, materials science, manufacturing technologies, energy systems, tribology, and sustainable engineering applications. This issue brings together 7 scholarly articles authored by researchers from 14 institutions across 4 countries, including Indonesia, Malaysia, Vietnam, and the United Kingdom. The contributions reflect the journal's commitment to promoting scientific collaboration and disseminating research addressing contemporary challenges in engineering and technology.

The contributing institutions include Universitas Negeri Padang, Universitas Diponegoro, Universitas Riau, Universitas Andalas, Universitas Syiah Kuala, Universitas Sumatera Utara, Universitas Negeri Medan, and Jakarta Global University (Indonesia); Universiti Malaysia Sarawak, Universiti Tun Hussein Onn Malaysia, and Universiti Teknologi Malaysia (Malaysia); Vinh Long University of Technology Education and the University of Transport and Communications (Vietnam); and De Montfort University (United Kingdom). These institutional contributions demonstrate collaborative research activities across Southeast Asia and international academic partnerships.

The published papers address a diverse range of engineering topics, including the dielectric and physicochemical properties of palm oil methyl ester nanofluids for liquid transformer insulation, systematic solvent screening for papaya seed oil extraction, enhancement of low-carbon steel hardness through pack carburizing using shellfish shell powder as a natural calcium carbonate activator, and the effects of loading angle and build direction on the tensile behavior of wire arc additive manufactured (WAAM) steel. Other contributions investigate the tribological performance of palm oil-based biolubricants incorporating bacterial cellulose, combustion and emission characteristics of methanol-enriched plastic waste pyrolysis oil in stationary Otto engines, and welding techniques for thermoplastic components produced through fused filament fabrication (FFF). Collectively, these studies highlight the application of experimental investigations, material characterization, process optimization, additive manufacturing, and sustainable resource utilization in addressing current engineering challenges.

In line with the journal's focus and scope, this issue contributes to advancing knowledge in materials engineering, manufacturing and additive manufacturing technologies, mechanical properties and performance, energy conversion systems, tribology, and sustainable engineering. The findings provide valuable scientific insights and practical perspectives for researchers, engineers, academics, and industry practitioners seeking innovative solutions to improve material performance, manufacturing processes, energy efficiency, and environmental sustainability.

Published: 31-10-2026

Research Article

  • Experimental investigation of palm oil methyl ester nanofluid as a liquid insulating material

    Yusri Jumat, Yanuar Z. Arief, Hendri Masdi, Valentine M. A. A. Jabu, Sharifah M. W. Masra, Nurul I. Hashim, S. K. Sahari, N. Junaidi, S. Rufus, Hamzah Eteruddin, Sinka Wilyanti
    285-301
    DOI: https://doi.org/10.24036/teknomekanik.v9i3.52872
  • Systematic solvent screening and selection for papaya seeds oil (PSO) extraction

    Misbahudin Alhanif, Andri Cahyo Kumoro, Dyah Hesti Wardhani
    302-329
    DOI: https://doi.org/10.24036/teknomekanik.v9i3.53672
  • Enhancing the hardness of low-carbon steel by pack carburizing using shellfish shell powder as a calcium carbonate activator

    Junil Adri, Durain Parmanoan, Refdinal Refdinal, Jasman Jasman, Bulkia Rahim, Meri Marlianna, Lai Chee Sern
    330-347
    DOI: https://doi.org/10.24036/teknomekanik.v9i3.56572
  • Effects of loading angle and build direction on the tensile behavior of WAAM steel produced with ER70S-6 welding wire

    Nguyen Thien Nhut, Nguyen Tan No, Cao Le Anh Kiet, Nguyen Van Cuong
    348-360
    DOI: https://doi.org/10.24036/teknomekanik.v9i3.57472
  • Friction performance of palm oil-based trimethylolpropane ester containing bacterial cellulose and sorbitan monostearate: A Taguchi-based study

    Dedi Rosa Putra Cupu, Hairul Abral, Dedison Gasni, Zahrul Fuadi, Zulhanafi Paiman, Chong Wei Quan, Kahar Osman
    361-377
    DOI: https://doi.org/10.24036/teknomekanik.v9i3.59272
  • Combustion and emission responses of methanol-enriched catalytic plastic waste pyrolysis oil in a stationary otto engine

    Enzo Wiranta Battra Siahaan, Tulus Burhanuudin Sitorus, Himsar Ambarita, Taufiq Bin Nur, Ilmi Abdullah, Janter P Simanjuntak
    378-395
    DOI: https://doi.org/10.24036/teknomekanik.v9i3.56972
  • Welding of thermoplastics printed by fused filament fabrication: A critical review of joining mechanisms and relationships between processing, structure, and properties

    Rahmat Azis Nabawi, Dani Harmanto, Febri Prasetya, Yogi Dian Alfana
    396-411
    DOI: https://doi.org/10.24036/teknomekanik.v9i3.55272

Corrigendum

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