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All Journal ROTOR: JURNAL ILMIAH TEKNIK MESIN Journal TEPAT: Teknologi Terapan untuk Pengabdian Masyarakat EPI International Journal of Engineering Jurnal Penelitian Enjiniring Fakultas Teknik Unhas Jurnal Teknik Mesin Sinergi Prosiding SNTTM
Hairul Arsyad
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Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Public Health

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Efek tegangan dan konsentrasi larutan asam sulfat pada Pembentukan burned anodizing pada proses anodisasi aluminum Foil Arsyad, Hairul; Marsing, Nurkhofifah
Prosiding SNTTM Vol 22 No 1 (2024): SNTTM XXII Oktober 2024
Publisher : BKS-TM Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.71452/590785

Abstract

The surface engineering process involving electrochemical methods is the anodization process. Anodization is an electrochemical process that produces anodic oxide on the surface that can change the surface proper-ties. In the anodization process, burned anodizing and surface cracking during the anodizing process hurt the surface quality. This study tries to see the formation of an aluminum oxide layer that causes burned an-odizing and surface cracking by adjusting the voltage and concentration of the solution. This study uses aluminum foil as a sample and graphite as an electrode. Anodization is carried out by providing a voltage range of 8 to 16 volts at two H2SO4 solution 2M and 3M concentrations. Observations of surface character-istics include micro and macro surface structures, surface roughness, and surface morphology. Calculations of the burned area are also carried out for each treatment. The test results show that the percentage of burned area increases with increasing voltage and concentration. The smallest burned area percentage was obtained with a value of 4% for samples at a voltage of 8 Volts and a solution concentration of 2M. In con-trast, the maximum value was obtained, reaching 95% of the area burned on the surface for samples of 16 Volts at a concentration of 3 M. However, a tendency was obtained to decrease surface roughness with in-creasing anodization voltage in both the non-burned and burned areas. From the test results using SEM, it was also found that surface cracks occurred in addition to being burned on the surface
Welding Skills Improvement Training in Lanne Village, Pangkep Regency Amme, Rudi; Salam, Nasaruddin; Renreng, Ilyas; Tarakka, Rustan; Arma, Lukmanul Hakim; Arsyad, Hairul; Mochtar, Andi Amijoyo; Hayat, Azwar; Sakka, Asriadi
JURNAL TEPAT : Teknologi Terapan untuk Pengabdian Masyarakat Vol 8 No 1 (2025): Community Empowerment through Higher Education Community Service Programs
Publisher : Faculty of Engineering UNHAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25042/jurnal_tepat.v8i1.577

Abstract

The welding method combines two or more pieces of metal by melting the material to be joined. The joining of two or more base metals through melting or without melting the joint area is known as welding technology. Karang Taruna Desa Lanne is a village government program for youth empowerment. Currently, the youth organization has a program that still needs to be improved to increase the productivity of youth organization members. Therefore, the training program to improve welding skills initiated by the Department of Mechanical Engineering, Faculty of Engineering, Hasanuddin University, is expected to positively impact partners. The activity was carried out by providing training material followed by welding practice activities to determine the ability of participants to apply the material provided previously. In addition, the pre-test and post-test questionnaires were given to the participants before and after the training to determine the program's success rate. Based on the quantitative analysis of measurements before training, it was found that 85% did not understand and 15% did not understand how to prepare for welding. After the training, it was found that 65% of the participants understood, 25% understood, and 10% understood very well when preparing for welding. This indicates that the activities carried out have a positive impact on partners.
Co-Authors Abdul Fatah Rozali Ahmad Nurul Muttaqin Ahmad Yusran Aminy Amiruddin, Arya Ahmad Amme, Rudi Andi Erwin E. Putra Andi Erwin Eka Putra Asriadi Sakka Azwar Hayat Edi Iskandar Gerard A. Duma Gerard Antonini Duma Gerard Antonini Durma Hafrizon Hafrizon Hammada Abbas Hayat, Azwar Ilyas Renreng Lukmanul Hakim Arma Luther Sule Marsing, Nurkhofifah Mochtar, Andi Amijoyo Muhammad Syahid Nasaruddin Salam, Nasaruddin Novriany Amaliyah Onny Sutreasman Onny Sutresman Othman, Rozaini Bin Rahmatullah Rahmatullah Rudi ., Rudi Rudi Rudi Rustan Tarakka Sakka, Asriadi Salam, Nasruddin Wahab, Abd. Wiwiek Nuralimah