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Metalik: Jurnal Manufaktur, Energi, Material Teknik
Published by Universitas Muhammadiyah Prof. Dr. Hamka
ISSN : -     EISSN : 28283899     DOI : https://doi.org/10.22236/metalik.v1i1
Core Subject : Science, Engineering,
Automotive Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering
METALIK: Jurnal Manufaktur, Energi, Material Teknik is a journal published by the Department of Mechanical Engineering of Universitas Muhammadiyah Prof. DR. Hamka which contains scientific articles in the fields of Energy Conversion, Mechanical Design, Production Engineering, Materials Science and other fields related to Mechanical Engineering. All accepted manuscripts in METALIK: Jurnal Manufaktur, Energi, Material Teknik will be electronically published worldwide. The results of the research published in this journal are expected to enrich the knowledge in the field of Mechanical Engineering as well as become a forum for professionals from the business world, education, or researchers to disseminate the development of science and technology in the field of Mechanical Engineering through the publication of research results.
Arjuna Subject : Teknik (semua kategori) - Teknik Mesin
Articles 54 Documents
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Investigasi Eksperimental Pengaruh Variasi Jenis Pelumas dan Kecepatan Putar Motor Terhadap Reduksi Diameter Kawat Titanium Murni Komersial Pada Proses Penarikan Kawat Iqbal; Yovial Mahyoedin; Iman Satria; Agil Pebri Saputra
METALIK : Jurnal Manufaktur, Energi, Material Teknik Vol. 5 No. 1 (2026): Metalik: Jurnal Manufaktur, Energi, Material Teknik
Publisher : Universitas Muhammadiyah PROF. DR. HAMKA Fakultas Teknik – Program Studi Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22236/metalik.v5i1.24527

Abstract

Commercially pure titanium (CP-Ti) has the potential as an alternative material for orthodontic wires due to its combination of high biocompatibility, good corrosion resistance, and mechanical characteristics that support clinical applications. This study aims to analyse the effect of different types of lubricants on the mechanical properties of titanium wire processed through the wire drawing method. The drawing process was carried out using two types of lubricants, namely oil and gomok, under the same diameter reduction conditions. Material characterisation was conducted through wire drawing tests, hardness tests, and microstructure observation to evaluate the effect of lubrication on the results of plastic deformation. The research results show that the use of oil produces a more stable drawing process and better mechanical properties compared to the use of gomok. In addition, effective lubrication can reduce frictional resistance during the deformation process, resulting in better surface quality and structural homogeneity. These findings indicate that the type of lubricant is an important parameter in the titanium wire drawing process and has the potential to improve the final product quality for orthodontic applications.
Pengaruh Variasi Tekanan Oksigen pada Torch terhadap Sifat Mekanik Sambungan Las Oxy-Acetylene pada Plat Aluminium 5052 Rayhan Ihsan Nugraha; Riyan Ariyansah; Pancatatva Hesti Gunawan
METALIK : Jurnal Manufaktur, Energi, Material Teknik Vol. 5 No. 1 (2026): Metalik: Jurnal Manufaktur, Energi, Material Teknik
Publisher : Universitas Muhammadiyah PROF. DR. HAMKA Fakultas Teknik – Program Studi Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22236/metalik.v5i1.24535

Abstract

This research aims to analyze the effect of oxygen pressure on the oxy-acetylene welding process concerning the mechanical properties of weld joints on 5052 aluminum plates. The variations of oxygen pressure used were 30 kg/cm², 40 kg/cm², and 50 kg/cm², with the acetylene pressure kept constant for each sample. Hardness testing was conducted to evaluate the hardness distribution in the base metal, Heat Affected Zone (HAZ), fusion line, and weld metal. The results indicate that oxygen pressure significantly affects the hardness values in the weld area. At an oxygen pressure of 30 kg/cm², the hardness reached 65.7 HV. Increasing the oxygen pressure to 40 kg/cm² resulted in the highest hardness value of 98.9 HV, indicating optimal conditions for forming a denser microstructure. However, at an oxygen pressure of 50 kg/cm², the hardness decreased back to 65.7 HV, suggesting that excessively high oxygen pressure can negatively impact the solidification process. From this study, it can be concluded that an oxygen pressure of 40 kg/cm² is the optimal parameter for achieving the highest hardness in the weld area. This research emphasizes the importance of controlling welding parameters to attain the desired mechanical properties in aluminum 5052 weld joints.
Perancangan Rangka Sepeda Motor Listrik dengan Simulasi Pembebanan Statik Menggunakan CFD Farid Nurfianto; Pancatatva Hesti Gunawan; Yos Nofendri
METALIK : Jurnal Manufaktur, Energi, Material Teknik Vol. 5 No. 1 (2026): Metalik: Jurnal Manufaktur, Energi, Material Teknik
Publisher : Universitas Muhammadiyah PROF. DR. HAMKA Fakultas Teknik – Program Studi Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22236/metalik.v5i1.24537

Abstract

The simulation results indicate that all three frame designs meet structural safety standards with a minimum safety factor above 2.5, as established in previous studies. In the first design (V1), the safety factor ranges from 3.484 to 2.809. The second design (V2) shows an improvement in safety factor, ranging from 4.714 to 3.328. Meanwhile, the third design (V3) demonstrates the best performance with the highest safety factor, ranging from 4.785 to 3.379. The analysis also reveals that the V3 design has a more uniform stress distribution and displacement that remains within a safe limit, not exceeding 3.4311 mm. Validation was conducted by comparing the simulation results with manual calculations, showing minimal differences, confirming the validity of the simulation results. Based on the analysis, the V3 design is recommended as the optimal configuration due to its higher safety margin and better stress distribution compared to the other designs
Performance Comparison of Inorganic Phase Change Materials of Sodium Chloride and Magnesium Sulfate (MgSO4) Solutions in a Solar-Powered Thermoelectric Cooling Box Rifky; Acep Saputra; Dimas Priyuko Tri Asmoro
METALIK : Jurnal Manufaktur, Energi, Material Teknik Vol. 5 No. 1 (2026): Metalik: Jurnal Manufaktur, Energi, Material Teknik
Publisher : Universitas Muhammadiyah PROF. DR. HAMKA Fakultas Teknik – Program Studi Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22236/metalik.v5i1.24561

Abstract

Penggunaan perangkat pendingin konvensional berbasis refrigeran sintetis memberikan kontribusi negatif terhadap penipisan lapisan ozon dan pemanasan global. Penelitian ini menyajikan sebuah studi komparatif mengenai integrasi dua jenis Phase Change Material (PCM) yang berbeda, yaitu larutan NaCl dan larutan MgSO4, guna meningkatkan performa kotak pendingin termoelektrik (TEC) yang disuplai oleh energi surya.Metode: Sistem pengujian menggunakan modul surya fotovoltaik, dua buah modul termoelektrik (Peltier), heatsink, serta kipas sirkulasi.. Hasil: Hasil eksperimen menunjukkan bahwa karakteristik konsentrasi masing-masing larutan PCM sangat memengaruhi penurunan titik beku dan peningkatan konduktivitas termal. Pada pengujian PCM larutan NaCl, variasi konsentrasi 5% NaCl menghasilkan temperatur ruang minimum sebesar 15,5 °C dengan Coefficient of Performance (CoP) mencapai 0,031. Sementara itu, pada pengujian PCM larutan MgSO4, konsentrasi optimal 30% MgSO4 mampu menurunkan temperatur ruang minimum hingga mencapai 12,7 °C dan menghasilkan rata-rata CoP sebesar 0,047 dibandingkan dengan kotak tanpa PCM (CoP 0,029). Kesimpulan: MgSO₄ memberikan kontribusi lebih baik terhadap pencapaian temperatur terendah dan CoP tertinggi dibandingkan dengan NaCl

Page 6 of 6 | Total Record : 54

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