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All Journal Jurnal Rekayasa Mesin Jurnal Elementer (Elektro dan Mesin Terapan) Jurnal SOLMA Adimas : Jurnal Pengabdian Kepada Masyarakat Abdimas Umtas : Jurnal Pengabdian kepada Masyarakat Indonesian Physical Review JURNAL CRANKSHAFT Motor Bakar : Jurnal Teknik Mesin AutoMech : Jurnal Teknik Mesin Jurnal Polimesin
Rizki Dwi Ardika
Universitas Muhammadiyah Ponorogo
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Social Sciences Transportation Other

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The effect of heat input on defect formation, macrostructure, microstructure and hardness in AA 1100 aluminum weld joints using the GMAW process Rizki Dwi Ardika; Ilham Sulthoni; Munaji Munaji; Yoyok Winardi; Muizuddin Azka
Jurnal Polimesin Vol 24, No 2 (2026): April
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v24i2.8632

Abstract

AA 1100 aluminum is widely used in industrial applications due to its low density and good corrosion resistance; however, welding defects such as porosity and changes in mechanical properties often occur during Gas Metal Arc Welding (GMAW). One of the most influential parameters on weld quality is the welding current. This study analyzes the effect of welding current variations on the physical and mechanical properties of AA 1100 GMAW welded joints using ER 5356 filler wire. Welding was carried out at currents of 100 A, 130 A, and 160 A using argon shielding gas. The welded joints were evaluated by visual inspection, macrostructure observation, microstructure analysis, and Vickers microhardness testing. The test results showed that increasing the welding current resulted in wider weld beads, increased porosity and spatter defects, as well as coarser grain structures in the heat-affected zone (HAZ) and weld metal. The lowest porosity and spatter occurred at 100 A, while the highest porosity and spatter occurred at 160 A. This was due to excessive heat input and hydrogen trapping. Microstructural analysis revealed the presence of FeAl₃ intermetallic phases dispersed within the aluminum matrix. The highest hardness value was found in the weld metal region at 100 A, which was caused by the finer grain size and the strengthening effect of Mg from the ER 5356 filler. Overall, this study confirmed that the welding current significantly affects the defect formation, microstructural evolution, and hardness distribution of GMAW AA 1100 weld joints.
PELATIHAN BAGI PEKERJA BENGKEL LAS UNTUK MENJADI SENIMAN API Rizki Dwi Ardika Rizki; Triyono Triyono
ADIMAS Jurnal Pengabdian Kepada Masyarakat Vol 10 No 2 (2026): September 2026
Publisher : Universitas Muhammadiyah Ponorogo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24269/adimas.v10i1.12676

Abstract

This community service program was developed to enhance the technical and creative competencies of welding workshop workers through integrated training in welding techniques and computer-aided design. Many welders in the region rely on self-taught skills, which often limits their ability to meet modern industry standards, particularly in precision work and design innovation. To address this gap, a three-day participatory training program was implemented, combining instruction in SMAW, GMAW, and GTAW welding processes with introductory CAD and simulation practices using SketchUp, AutoCAD, and Ansys. The results demonstrate significant improvements in participants’ abilities: half of the trainees successfully learned to model and simulate simple structures digitally, while all participants achieved basic proficiency in GTAW welding despite most having no prior experience. A structured case study further revealed increased skill integration, although varied progress suggested differences in digital adaptation. Overall, the program effectively broadened the welders’ technical capabilities, enhanced workplace safety awareness, and encouraged creativity in metal fabrication. This initiative highlights the importance of continuous upskilling for informal workers and shows the potential of merging digital literacy with hands-on craftsmanship to produce more competent and innovative “fire artists” in the welding sector.
Co-Authors Aep Surahto Ahmad Rifai Ahmad, Nanang Sufiadi Akhmad, Nanang Suffiadi Alfiansyah, Nanda Safiq Andi Ibrahim Soumi Anik Rachmawati Arifin, Rizal Arifqi, Miftahul Asmaul Khusna, Zakia Access Avorizano, Arry Awalludin, Fachrul Azam, Alfandy Kurnia Azhari, Fadhlan Azhari, Fadlan Bambang Wahrudin Bintoro, Sefrian Rizki Budi Prasetyo, Resa Edy Kurniawan, Edy Eko Surojo Fadelan Fadelan, Fadelan Febriandyono, Muhammad Faesal Fikri, Agus Fikrotul Ulya As Siddieq, Muhammad Fitrian, Aditia Hisyam Ma’mun Ilham Sulthoni Isdhianto, Irfan Ishaq KUNTANG WINANGUN Laksono, Deddy Dwisetia M. Yogi Riyantama Isjoni Mahdi, Jausyan Al Muhammad Budi Haryono Muhammad Ridwan Hidayatulloh, Muhammad Ridwan Muhammad, Rouf Muhayat, Nurul Muizuddin Azka Mujirudin, Mujirudin Munaji Munaji Perdana, Elda Bagus Pratama, Albet Eka Putri, Ericha Dwi Wahyu Syah RAMADHAN NUR, HAMID Raza, Muh Nailar Ridwan Afandi Riyan Ariyansah Rizki Bintoro, Sefrian Safi'i, Muhamad Safiq Alfiansyah, Nanda Sudarno, Sudarno Sugianti Sugianti, Sugianti Sugiyarto Sukmaji Indro cahyono Tama, Okti Liksyan Nita Teguh Triyono Triwikantoro Triwikantoro Triyono Triyono Triyono Triyono Wibi Pramanda Wiguh Eko Adha Riantiarno Wijayanti, Zahrotul Ilmi Winardi, Yoyok Xander Salahudin Yafid Effendi Yongkimandalan, Nicky Yovi Litanianda, Yovi Yoyok Winardi Yuli Astuti, Arin