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Pengaruh Arus Listrik Spot Welding KW14-1031 Terhadap Kekuatan Geser Pada Baja St42 I Wayan Suma Wibawa; I Made Anom Adiaksa; Made Ardikosa Satrya Wibawa; A.A. Gede Pradnyana Diputra; I Komang Kantun; I Nyoman Suparta
Journal of Applied Mechanical Engineering and Green Technology Vol. 4 No. 1 (2026): April
Publisher : Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/jametech.v4i1.14-19

Abstract

Welding technology serves not only as a manufacturing process but also as a repair solution for all metal-based components. Spot welding is a welding method that utilizes electrical resistance to join various products made of sheet metal, in which the contacting metal surfaces are fused by the heat generated from electrical resistance. This welding method is selected due to several advantages, including ease of operation without requiring specialized skills as demanded by other welding techniques, as well as a faster process that enhances production time efficiency. Control of the electrical current path during welding is critical, as it significantly influences the characteristics of the joint, including weld quality, shear strength, hardness level, and resistance to external loads. This study focuses on analyzing the effect of electrical current in spot welding techniques on the shear strength of ST 42 steel plates. Through descriptive analysis and graphical representation, this research aims to observe the relationship between electrical current and the resulting shear strength produced by the welding process. The lowest average shear strength was recorded at an input current of 20.36 A with a welding output current of 6011.47 A, a welding time of 8 seconds, and a heat input of 61894.30 J, yielding a shear strength of 1.67 MPa. Meanwhile, the highest average shear strength was obtained at an input current of 28.95 A with a welding output current of 6011.47 A, a welding time of 8 seconds, and a heat input of 88007.92 J, resulting in a shear strength of 6.72 MPa. Electrical current control is therefore essential, as ST 42 steel plates experienced damage at an input current of 32.45 A and an output current of 6323.58 A, with a welding time of 8 seconds and a heat input of 98647.84 J.
Analisis Pengaruh Aliran Fluida Pendingin Dan Waktu Pengelasan Spot Welding Kw14-1031 Terhadap Kekuatan Tarik Pelat Baja ST 40 Adiaksa, I Made Anom; I Nyoman Gede Suta Waisnawa; Ida Bagus Gde Widiantara; I Wayan Marlon Managi
Journal of Applied Mechanical Engineering and Green Technology Vol. 4 No. 1 (2026): April
Publisher : Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/jametech.v4i1.8-13

Abstract

Spot welding is greatly influenced by the cooling medium in terms of welding characteristics such as strength. The tensile strength of ST 40 steel plate welded joints is influenced by the cooling medium and welding time. Testing and data collection use experimental methods on spot welding machines and shear tests. Data collection uses quantitative methods while processing uses descriptive methods. The ASTM E8 standard is used in sample testing. The flow of coolant fluid in the spotwelding process significantly affects the HAZ diameter. Faster fluid flow increases heat transfer from the electrode to the coolant, keeping the electrode and weld material temperatures below 1,500 ºC, thereby reducing electrode wear and maintaining a stable weld nugget size at 5.00 mm. The lowest HAZ diameter was recorded at a flow rate of 5 liters/minute with a HAZ diameter of 8.30 mm, while the highest was at a flow rate of 2 liters/minute with a diameter of 10.43 mm. Too fast cooling or too short welding time can cause brittle weld joints and reduce tensile stress. Conversely, slower cooling with appropriate welding time produces optimal tensile strength while maintaining the structural integrity of the joint. Optimal results were found at a fluid flow rate of 2 liters/minute at 5.0 seconds with a tensile stress of 96.10 MPa, 3 liters/minute at 6.0 seconds with a tensile stress of 104.89 MPa, 4 liters/minute at 7.0 seconds with a tensile stress of 114.00 MPa and 5 liters/minute at 8.0 and 9.0 seconds with tensile stress of 116.72 MPa and 125.76 MPa.
Studi Eksperimental Perpindahan Panas pada Pengering Sepatu Berbasis Rak Datar Putrawan, I Made Agus; Adiaksa, I Made Anom; Wibawa, I Wayan Suma; Adi, I Ketut
Journal of Applied Mechanical Engineering and Green Technology Vol. 4 No. 1 (2026): April
Publisher : Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/jametech.v4i1.20-25

Abstract

Shoe drying is a crucial process for maintaining hygiene and extending the lifespan of footwear, especially in high-humidity environments. This study aims to experimentally investigate the heat transfer characteristics of a flat-rack-based shoe dryer. The system is designed with electric heating elements and a horizontal rack configuration to promote uniform heat distribution. Key observed parameters include inlet air temperature, shoe surface temperature, drying time, and moisture content reduction. Measurements were conducted at multiple rack levels to evaluate vertical and horizontal temperature distribution. The results indicate that forced convection is the dominant heat transfer mechanism, with relatively uniform temperature distribution observed in the middle racks, while the top and bottom racks experienced temperature deviations. The heat transfer by radiation generated by the shoe dryer is 5.41 J/s, and the convective heat transfer is 238.8 J/s. The moisture content loss increases with drying time, indicating that 90 minutes is the optimal drying duration among the tested variations. This study provides a foundation for the development of more energy-efficient shoe drying systems and highlights the potential for integrating alternative heat sources such as solar energy.
Evaluasi Kinerja dan Efektivitas CVT sebagai Sistem Transmisi pada Kendaraan Buggy 2WD I Wayan Agus Rantia Dana; I Made Anom Adiaksa; I Wayan Suma Wibawa; I Made Bagus Panji Aditya
Journal of Applied Mechanical Engineering and Green Technology Vol. 4 No. 1 (2026): April
Publisher : Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/jametech.v4i1.33-39

Abstract

The development of non-conventional light vehicle technology, such as the buggy car, demands efficient and reliable power transfer systems to support mobility in congested industrial areas. One of the primary technologies utilized is the continuously variable transmission (cvt), which offers the advantage of changing transmission ratios continuously without the interruptions found in conventional gear shifting. However, in its application, an imbalance often occurs between the engine speed (rpm engine) and the wheel speed (rpm wheel) due to load factors and power losses. This study aims to comprehensively analyze the correlation between rpm engine and wheel performance on a buggy vehicle under varying loads ranging from 3 kg to 8 kg. Experimental results indicate that increasing the load leads to a significant decrease in wheel rpm across all engine speed ranges; for instance, at 8000 rpm engine, the wheel rpm dropped from approximately 515 rpm (3 kg load) to 225 rpm (8 kg load). Conversely, wheel torque exhibited a linear increase as the load rose, reaching a peak value of 15.8 nm at an 8 kg load. effectiveness analysis shows that the output power (hp) tends to increase with the load, with the highest effectiveness achieved during lower engine speed operations (5500 rpm) at peak load. These findings provide a scientific contribution to understanding the mechanical behavior of cvts and serve as a technical reference for optimizing transmission tuning in light vehicles to achieve a balance between torque and power efficiency.
Penguatan Praktik Keselamatan dan Kesehatan Kerja (K3) pada UMKM Dodol Bhuana Sari di Desa Selat, Karangasem, Bali Dwijuliasri, Kadek Ayu; Astuti, Ni Wayan Wahyu; Sarja, Ni Luh Ayu Kartika Yuniastari; Adiaksa, I Made Anom; Pamularsih, Tyas Raharjeng; Sarja, Ni Ketut Pradani Gayatri; Puspita, Ni Made Ayu Maya
Lumbung Inovasi: Jurnal Pengabdian kepada Masyarakat Vol. 11 No. 2 (2026): June
Publisher : Lembaga Penelitian dan Pemberdayaan Masyarakat (LITPAM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36312/linov.v11i2.5040

Abstract

Penerapan keselamatan dan kesehatan kerja (K3) pada Usaha Mikro, Kecil, dan Menengah (UMKM) pangan memiliki peran penting dalam melindungi pekerja serta mendukung keamanan pangan dan kelancaran proses produksi. Namun, penerapan K3 pada sebagian besar UMKM masih belum optimal. Kegiatan pengabdian kepada masyarakat ini bertujuan meningkatkan pengetahuan dan keterampilan pelaku UMKM Dodol Bhuana Sari dalam menerapkan prinsip K3. Kegiatan diikuti oleh 12 peserta yang terdiri atas 1 pemilik usaha, 1 pengelola, dan 10 pekerja produksi. Metode pelaksanaan menggunakan pendekatan partisipatif melalui edukasi K3, pelatihan penggunaan alat pelindung diri (APD), edukasi higiene dan sanitasi pangan, serta pendampingan ergonomi kerja selama proses produksi dodol. Evaluasi dilakukan menggunakan observasi partisipatif dan wawancara semi-terstruktur terhadap pemilik usaha dan pekerja. Hasil kegiatan menunjukkan adanya peningkatan pemahaman pekerja terkait K3, penggunaan APD yang lebih konsisten, praktik higiene dan sanitasi yang lebih baik, serta penataan area kerja yang lebih teratur. Selain itu, pekerja menyampaikan adanya peningkatan kenyamanan kerja setelah pendampingan ergonomi dilakukan. Program ini menunjukkan bahwa pendampingan K3 berbasis partisipatif dapat menjadi upaya awal dalam mendukung terciptanya lingkungan kerja yang lebih aman dan nyaman pada UMKM pangan. Strengthening Occupational Safety and Health (OSH) Practices in the Dodol Bhuana Sari MSME in Selat Village, Karangasem, Bali Abstract Occupational health and safety (OHS) implementation in food-based Micro, Small, and Medium Enterprises (MSMEs) plays an important role in protecting workers while supporting food safety and production processes. However, OHS practices in many MSMEs remain suboptimal. This community service program aimed to improve the knowledge and skills of workers at Dodol Bhuana Sari MSME in applying OHS principles. The activity involved 12 participants consisting of one business owner, one manager, and ten production workers. The program applied a participatory approach through OHS education, personal protective equipment (PPE) training, food hygiene and sanitation education, and ergonomic assistance during the dodol production process. Evaluation was conducted using participatory observation and semi-structured interviews with the owner and workers. The results showed increased worker understanding of OHS, more consistent PPE use, improved hygiene and sanitation practices, and better workplace organization. In addition, workers reported greater comfort during work after ergonomic adjustments were implemented. This program demonstrates that participatory OHS assistance can serve as an initial effort to support a safer and more comfortable working environment in food-based MSMEs.
PEMETAAN OBYEK WISATA SPIRITUAL DI DESA BAKAS BANJARANGKAN-KLUNGKUNG I Made Anom Adiaksa; I Gusti Agung Oka Sudiadnyani; Wayan Hesadijaya Uthavi
Bhakti Persada Vol. 8 No. 1 (2022): Bhakti Persada Jurnal Aplikasi IPTEKS
Publisher : Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/bp.v8i1.53-60

Abstract

Bakas adalah desa yang berada di kecamatan Banjarangkan, Kabupaten Klungkung, Provinsi Bali, Indonesia. Adapun juga letak dan kondisi geografis Desa Bakas kurang lebih 3 km dari kota kecamatan Banjarangkan. Mata pencaharian atau pekerjaan masyarakat Desa Bakas, mulai dari petani, Pegawai Negeri Sipil, hingga menjadi pedagang. Luas wilayah Desa Bakas 2,82 km², dan sebagian besar lahan dimaanfaatkan untuk kegiatan pertanian. Desa Bakas memiliki beberapa objek yang menarik berupa wisata alam dan budaya. SK Pokdarwis dikeluarkan Desa Bakas tahun 2018. Desa Bakas secara topografi ada perbukitan dengan persawa-hannya yang membentang, sekaligus menjadi ikon Desa Bakas. Sisi barat desa merupakan Tukad Melangit yang sekaligus menjadi batas desa. Mata air yang berada di pinggir sungai Desa Bakas ini memiliki potensi besar untuk dapat dikelola secara professional untuk meningkatkan pendapatan desa. Kondisi lingkungan sekitar serta potensi alam yang masih alami sangat mendukung untuk pengembangan ini. Pelaksanaan pengabdian ini telah dilaksanakan dengan beberapa aspek seperti aspek pembangunan, aspek sosial masyarakat dan aspek keberlanjutan program. Aspek pembangunan menyangkut pembangunan penunjang wisata seperti tulisan identitas lokasi, gerbang masuk lokasi, papan penunjuk lokasi serta pengecatan. Aspek social dilihat dari tingkat partisipasi aktif kelompok mitra mencapai 90% dalam setiap kegiatan yang dilakukan. Aspek keberlanjutan program dimana telah terbentuk kelompok Bungsih Tourism Destination (BTD) yang secara aktif bersama tim pelaksana melakukan perencanaan, pelaksanaan maupun evaluasi. Kelompok ini yang mengelola sekaligus melakukan perawatan dan pengembangan lokasi.
Optimalisasi Objek Wisata Edukasi di Dusun Petapan Kabupaten Klungkung Putu Indah Ciptayani; Ni Wayan Dewinta Ayuni; Ni Made Kariati; I Made Anom Adiaksa
Bhakti Persada Vol. 8 No. 1 (2022): Bhakti Persada Jurnal Aplikasi IPTEKS
Publisher : Unit Publikasi Ilmiah, P3M, Politeknik Negeri Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31940/bp.v8i1.46-52

Abstract

Dusun Petapan merupakan salah satu dusun di Desa Aan yang terletak di Kabupaten Klungkung. Desa Aan memiliki potensi wisata yang sedang dikembangkan, akan tetapi pengelolaan kawasan belum optimal. Tujuan dari kegiatan pengabdian ini adalah mengoptimalkan objek wisata yang telah ada dengan membangun infrastruktur wisata edukasi. Metode pelaksanaan kegiatan meliputi sosialisasi, penyiapan lokasi, pengerjaan pembangunan, pemantauan lapangan dan evaluasi. Hasil dari kegiatan ini berupa dipasangnya papan penunjuk objek wisata, papan nama objek wisata, wahana permainan edukasi anak-anak dan penataan jalan menuju kawasan wisata. Survey yang dilakukan menunjukkan persepsi masyarakat terhadap objek wisata sebesar 78%, dengan tiga aspek yang masih perlu ditingkatkan yaitu variasi permainan edukasi (75%), papan penunjuk (69%) dan staf (65%).