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All Journal Jurnal Pendidikan Teknik Mesin Undiksha
Edi Elisa
Pendidikan Teknik Mesin, Universitas Pendidikan Ganesha, Bali
Automotive Engineering Education Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Pengaruh Variasi Kuat Arus Listrik Terhadap Kekuatan Tarik Hasil Pengelasan Tungsten Inert Gas (TIG) Pada Material Aluminium 5052: 1. PENDAHULUAN, 2. METODE, 3. HASIL DAN PEMBAHASAN, 4. KESIMPULAN DAN SARAN, UCAPAN TERIMAKASIH, DAFTAR RUJUKAN Abdi Ciputra; Ni Made Novia Kusumayani; Edi Elisa
Jurnal Pendidikan Teknik Mesin Undiksha Vol. 14 No. 2 (2026)
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jptm.v14i2.115053

Abstract

Technological advances in the field of welding continue to develop, especially in the Tungsten Inert Gas (TIG) method which is widely used to join metals such as Aluminum 5052. This study was conducted to examine the effect of differences in electric current on the mechanical properties of welding results, including tensile strength, strain, and modulus of elasticity, using ER4043 electrodes and CO₂ shielding gas and ASTM E8 standard specimens. The approach used was a quantitative experiment with variations in current of 90A, 100A, 110A, and 120A, then tested using a tensile testing machine and analyzed through data presentation in the form of tables and graphs. The test results showed that a current of 100A provided the highest tensile strength value of 79.242 MPa, while a current of 120A produced the largest strain of 0,0174 which indicates a more ductile material. Meanwhile, the highest modulus of elasticity value was obtained at a current of 100A of 20,614 GPa which indicates the best level of material stiffness. In general, current variations significantly affect the mechanical characteristics of the weld, with currents that are too low resulting in less than optimal penetration, while currents that are too high can potentially cause overheating and weld defects. Therefore, determining the appropriate current is a crucial factor in achieving optimal weld joint quality.
Pengaruh Model Pembelajaran Kooperatif Type PJBL Terhadap Hasil Belajar System Tata Udara Teknik Elektronika Siswa Kelas XI TE Di SMK N 3 Singaraja: The Influence of Project-Based Learning Model on Learning Outcomes of Air Conditioning Systems in Electronic Engineering Department at State Vocational School 3 Singaraja Kadek Karuna Wibawa; Edi Elisa; I Nyoman Pasek Nugraha
Jurnal Pendidikan Teknik Mesin Undiksha Vol. 14 No. 2 (2026)
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jptm.v14i2.115089

Abstract

The low learning outcomes of students in the Air Conditioning System course indicate the need for an instructional model that can enhance student engagement and improve the quality of the learning process. Project-Based Learning (PjBL) is an instructional model that is well suited to vocational education because it integrates conceptual understanding with practical experience through project completion. This study aimed to analyze the effect of implementing Project-Based Learning on the learning outcomes of eleventh-grade students in the Electronics Engineering Program at SMK Negeri 3 Singaraja. This study employed a quantitative approach using a pre-experimental method with a one-group pretest–posttest design. The study population consisted of 58 students, while the research sample comprised 29 eleventh-grade Electronics Engineering students. Data were collected using a multiple-choice objective test that had been validated through content validity assessment. The data were analyzed using descriptive statistics, normality and homogeneity tests, N-Gain analysis, and a paired-samples t-test with the assistance of SPSS software. The results showed that the mean learning outcome increased from 72.55 on the pretest to 82.00 on the posttest. The average N-Gain score was 0.7501, which falls into the high category, while the paired-samples t-test yielded a significance value of 0.001 (p < 0.05). These findings indicate that the implementation of Project-Based Learning has a positive and significant effect on students' learning outcomes in the Air Conditioning System course. Therefore, Project-Based Learning can be considered an effective instructional model for improving the quality of teaching and learning as well as students' competency achievement in technical and vocational education.
Artikel Analisis Kesiapan Guru Teknik dan Bisnis Sepeda Motor dalam Integrasi Artificial Intelligence: Analisis Kesiapan Guru Teknik dan Bisnis Sepeda Motor dalam Integrasi Artificial Intelligence Kadek Suta Mertaya; Edi Elisa; Nyoman Arya Wigraha
Jurnal Pendidikan Teknik Mesin Undiksha Vol. 14 No. 2 (2026)
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jptm.v14i2.117030

Abstract

The development of Artificial Intelligence (AI) technology in the era of the Industrial Revolution 4.0 has encouraged the transformation of learning practices, particularly in vocational education. This study aimed to analyze the readiness of Motorcycle Engineering and Business teachers to integrate AI into the learning process. A descriptive qualitative approach was employed, with data collected through interviews, observations, and documentation. The research subjects consisted of Motorcycle Engineering and Business teachers at SMKN 1 Gerokgak and SMKN 3 Singaraja. Data were analyzed through data reduction, data display, and conclusion drawing. The findings revealed that teachers’ understanding of AI tended to be at the multistructural level of the SOLO Taxonomy, while some teachers had begun to demonstrate relational characteristics. Teachers’ skills in utilizing AI were generally at the manipulation level of Dave’s Psychomotor Taxonomy, with several teachers reaching the precision level. Teachers’ attitudes and perceptions toward AI integration showed a positive tendency and were categorized at the valuing stage of Krathwohl’s Affective Taxonomy. Supporting factors for AI integration included institutional support, training opportunities, adequate facilities and infrastructure, and teachers’ adaptability. Meanwhile, inhibiting factors included disparities in digital competence, limited training access, paid AI features, prompt formulation skills, and challenges in monitoring students’ use of AI. These findings indicate that teachers’ readiness to integrate AI into learning is relatively good; however, further competency development and institutional support are needed to optimize AI implementation in vocational education.
Persepsi Guru-Siswa Terhadap AI Dalam Pembelajaran Teknik Mesin Di SMKN 3 Singaraja: Teacher-Student Perceptions Of Ai In Mechanical Engineering Learning At SMKN 3 Singaraja Bayazid Al Bustami; Nyoman Pasek Nugraha; Edi Elisa; Kadek Rihendra Dantes; Gede Widayana
Jurnal Pendidikan Teknik Mesin Undiksha Vol. 14 No. 2 (2026)
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jptm.v14i2.117740

Abstract

This study aims to analyze teachers’ and students’ perceptions of the use of Artificial Intelligence (AI) in learning within the Mechanical Engineering Department at SMKN 3 Singaraja. The study is motivated by the increasing integration of AI technology in vocational education, which requires readiness from both teachers and students. This research employs a qualitative exploratory approach. Participants were selected using purposive sampling, consisting of teachers and students of the Mechanical Engineering Department. Data were collected through semi-structured interviews, non-participant observation, and documentation, and analyzed using the Miles and Huberman interactive model, including data reduction, data display, and conclusion drawing. The findings indicate that teachers perceive AI as an effective learning aid that supports theoretical instruction and administrative tasks, but it cannot replace hands-on practical training in workshops. Meanwhile, students view AI as a learning assistant that helps them understand materials and solve technical problems, although it may lead to dependency risks. In conclusion, AI functions as a supporting tool rather than a replacement for teachers. Proper regulations, improved digital literacy, and strengthened teacher roles are required for effective implementation in vocational education.
Pengaruh Jenis Filter Udara Terhadap Torsi, Daya, dan Konsumsi Bahan Bakar: The Effect of Air Filter Type on Torque, Power, and Fuel Consumption Putu Agus Hendrawan; Nyoman Arya Wigraha; Gede Wiratmaja; Edi Elisa
Jurnal Pendidikan Teknik Mesin Undiksha Vol. 14 No. 2 (2026)
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jptm.v14i2.119417

Abstract

This study aims to analyze the effect of variations in air filter materials on torque, power, and fuel consumption in a Honda Beat 110 cc fuel-injected motorcycle. The air filter materials used in this study include paper, sponge, cotton, and wire mesh, each having different porosity characteristics that are expected to influence the amount of air entering the combustion chamber and consequently affect engine performance. This research employed an experimental method with a quantitative approach. Torque and power tests were conducted using a dynamometer, while fuel consumption was measured based on the amount of fuel used at specific engine speeds. The data were collected through repeated tests and analyzed statistically to determine the effect of air filter material variations on the observed parameters. The results are expected to reveal differences in torque, power, and fuel consumption among the various air filter materials and to identify the most effective filter material for improving engine performance while maintaining fuel efficiency.
A PENGEMBANGAN MEDIA PEMBELAJARAN DASAR-DASAR OTOMOTIF SUB POKOK SISTEM REM BERBASIS TRAINER: PENGEMBANGAN MEDIA PEMBELAJARAN DASAR-DASAR OTOMOTIF SUB POKOK SISTEM REM BERBASIS TRAINER I Made Satrya Adi Wibawa; Edi Elisa; Gede Widayana; Kadek Rihendra Dantes
Jurnal Pendidikan Teknik Mesin Undiksha Vol. 14 No. 2 (2026)
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jptm.v14i2.120758

Abstract

This study aims to develop a trainer-based learning medium for the brake system topic, determine the medium's feasibility, and assess its practicality. The study was motivated by the limited availability of practical learning media to assist students in understanding brake system concepts within the Automotive Fundamentals course at the Mechanical Engineering Education Study Program, Universitas Pendidikan Ganesha. The study employed the Research and Development (R&D) method using the 4D development model (Define, Design, Develop, and Disseminate); however, the research was conducted only up to the Develop stage. The research subjects consisted of two design experts, two manufacturing experts, 15 students for the small-group trial, and 30 students for the large-group trial. Data were collected via questionnaires and analyzed using quantitative descriptive analysis. The results indicated that the instrument's content validity score was 0.926, falling into the "very high" category. Validation results showed scores of 91.81% from design experts and 91.25% from manufacturing experts, classifying the learning medium as "highly feasible." Practicality test results yielded scores of 85.80% for the small group and 89.90% for the large group, placing the medium in the "highly practical" category. Thus, the trainer-based learning medium for the brake system topic is deemed valid, highly feasible, and highly practical for use in the Automotive Fundamentals course. Keywords: learning medium, trainer, brake system, automotive fundamentals, research and development.
Co-Authors Abdi Ciputra Bayazid Al Bustami Gede Widayana Gede Wiratmaja I Made Satrya Adi Wibawa I Nyoman Pasek Nugraha Kadek Karuna Wibawa Kadek Rihendra Dantes Kadek Suta Mertaya Ni Made Novia Kusumayani Nyoman Arya Wigraha Nyoman Pasek Nugraha Putu Agus Hendrawan