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All Journal INVOTEK: Jurnal Inovasi Vokasional dan Teknologi Martabe : Jurnal Pengabdian Kepada Masyarakat JURNAL PENDIDIKAN TAMBUSAI Suluah Bendang: Jurnal Ilmiah Pengabdian Kepada Masyarakat Jurnal Pengabdian Masyarakat Multidisiplin Teknomekanik Jurnal Vokasi Mekanika Tsaqofah: Jurnal Penelitian Guru Indonesia ALSYS : Jurnal Keislaman dan Ilmu Pendidikan MASALIQ: Jurnal Pendidikan dan Sains Al-DYAS : Jurnal Inovasi dan Pengabdian kepada Masyarakat Journal of Engineering Researcher and Lecturer Journal of Innovative and Creativity
Zainal Abadi
Universitas Negeri Padang
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Public Health Social Sciences Transportation Other

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Pengaruh Kemandirian Dan Kedisiplinan Menggunakan Model Project Based Learning Terhadap Hasil Belajar Pada Praktik Mata Pelajaran Las Smaw Siswa Kelas XI SMK Negeri 2 Kota Bengkulu Rahmat Mardiansyah Putra; Bulkia Rahim; Jasman Jasman; Zainal Abadi
Jurnal Vokasi Mekanika (VoMek) Vol 7 No 1 (2025): Jurnal Vokasi Mekanika
Publisher : Unversitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/vomek.v7i1.817

Abstract

The main problems in this research are: (1) How does independence influence student learning outcomes? (2) How does discipline influence student learning outcomes, and (3) How does independence and discipline influence student learning outcomes. The objectives of this research were designed to: (1) To determine the increase in student independence regarding learning outcomes in the SMAW welding subject class XI TLAS at SMK Negeri 2 Bengkulu City. (2) To determine the increase in student discipline towards learning outcomes in the SMAW welding subject class Negeri 2 Bengkulu City. This research applies a correlational method. The sample for the research carried out was 16 students of class XI TLAS SMK Negeri 2 Bengkulu City. The independence and discipline questionnaire uses a Likert scale and test questions to collect data. Data were analyzed through correlation analysis and multiple regression. Student independence has the strongest correlation with learning outcomes (0.613), followed by discipline (0.589). The significant relationship between independence and discipline on learning outcomes (0.681) shows that these two variables complement each other. The conclusion from this research is that independence and discipline have a significant influence on student learning outcomes
Analysis Of Physical And Mechanical Properties Of Recycled Aluminum With Variations In Molding Temperatures And Adding Degasser Powder As An Environmentally Friendly Material Zainal Abadi; Andre Kurniawan; Andril Arafat; Susi Marisa
Jurnal Vokasi Mekanika (VoMek) Vol 7 No 2 (2025): Jurnal Vokasi Mekanika
Publisher : Unversitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/vomek.v7i1.833

Abstract

Recycling is the process of converting used materials into new materials with the aim of preventing waste that can actually be useful, reducing the use of new raw materials, reducing energy use, reducing pollution, land damage. The purpose of this study was to determine the most optimal pouring temperature to produce the best casting of the physical and mechanical properties of recycled aluminum material added with degasser powder. The urgency of this study is as a research material in the field of materials. This research method is to make 3 variations of melting temperature before pouring into the mold, the temperature variations used are 6750-7000C, 7000-7250C and 7250-7500C. At any temperature variation before pouring into the mold, degasser powder is also added to help clean the molten metal from the gases trapped in the molten metal. After the sample is molded, the results are visually observed, then a specimen is made to test the mechanical properties of the used aluminum casting. The data from the test results show that there is a fairly large porosity value in each variation. The hardness value of the test results shows that it is directly proportional to the temperature variation. At a temperature of 7250-7500C the average hardness value is 98.5 HVN. While the tensile strength at a temperature of 7250-7500C value is 83.58 Mpa, at a temperature of 7000-7250C = 74.39 Mpa and at a temperature of 6750-7000C = 71.5 Mpa. Thus the most optimal temperature in this used aluminum casting is 7250-7500C.
Optimization of Laser Cutting Parameters toward Formation of Dross Defects on Stainless Steel Material Imam Qulugqin Azhim; Rifelino; Syahril; Zainal Abadi
Jurnal Vokasi Mekanika (VoMek) Vol 8 No 3 (2026): Jurnal Vokasi Mekanika
Publisher : Unversitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/w7y55g34

Abstract

Laser cutting technology is widely used in the manufacturing industry because it is able to produce precise and efficient cutting. However, improper setting of cutting parameters can cause the formation of dross defects that reduce the quality of the cut. This research aims to analyze the formation of dross defects and determine the optimal cutting parameters on stainless steel materials with a thickness of 1 mm and a cutting length of 50 mm. The full factorial experimental design is used with three process parameters, namely cutting speed (S), focus point (F), and gas pressure (P). The height of the cutting results is measured and analyzed using the Analysis of Variance (ANOVA) method to evaluate the effect of each parameter on the observed response. The analysis results show that the focus point factor (F) has a significant effect on the dross height with a p-value of 0.029 (<0.05), while cutting speed, gas pressure, and all interactions between factors do not show a statistically significant effect. Contribution analysis shows that the F×P interaction gives the greatest contribution to the dross height variation of 29%, followed by the F factor of 27%. Based on the research results, the combination of optimal parameters to minimize the height of the dross was obtained at the focus point -2 mm, cutting speed 30 m/min, and gas pressure 10 bar. This finding shows that focus point setting is the main factor in controlling dross defects in the laser cutting process of stainless steel materials.
Implementasi Model Project Based Learning terhadap Hasil Belajar pada Mata Pelajaran Produk Kreatif dan Kewirausahaan (PKK) pada Kelas XI Jurusan Teknik Pemesinan di SMK Negeri 2 Dumai Hafizd Syahiran nst; Zainal Abadi; Waskito Waskito; Purwantono Purwantono
ALSYS Vol 4 No 4 (2024): ALSYS: Jurnal Keislaman dan Ilmu Pendidikan
Publisher : Lembaga Yasin AlSys

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58578/alsys.v4i4.3326

Abstract

Vocational education is designed to develop skills, abilities, understanding, teamwork attitudes and an appreciation that includes the knowledge and information needed by a worker to enter and make progress in a useful and productive job. Factors that support the creation of quality graduates are found in the subjects of Creative Products and Entrepreneurship. This study aims to analyze the Implementation of the Project Based Learning Model on Learning Outcomes in Creative Products and Entrepreneurship (PKK) Subjects in Class XI of the Machining Engineering Department at SMK Negeri 2 Dumai. This research is a class action research (PTK) or often also called classroom action research. This Jhon Elliot model classroom action research consists of pre-cycle, first cycle and second cycle to achieve the desired results. This study uses an instrument in the form of an assessment rubric that is used to see student learning outcomes in creative product and entrepreneurship subjects with the application of project-based learning models referring to the results of projects made by students. Based on the results of research and discussion, class action research on the subject of Creative Products and Entrepreneurship in class XI Machining Engineering SMK N 2 Dumai can be concluded as follows. 1) Efforts to improve learning outcomes using project-based learning models in class XI TP in the subject of Creative Products and Entrepreneurship have been successfully implemented and are able to improve student learning outcomes at SMK Negeri 2 Dumai. 2) With the project-based learning model, teachers have other choices in determining learning models so that it can be a solution in improving student learning outcomes.
Co-Authors - Primawati Afriza Media Ahlal Fikri, Rivandy Akbar, Irfan Muhammad Akbar, M. William Alan Putra Ambyar Ambyar Ananda, Opi Andre Kurniawan Andre Kurniawan Andri, Junil Andrian Saputra Angga Hermawansyah Anggara, Diki Anwar, Roki Putra Arafat, Andril Arif Rachman Hakim Arifin Jannuar Arwizet Arwizet, Arwizet Aslfattahi, Navid Berry Delfi Andra Budi Syahri Bulkia Rahim Daffa Raihan Senthot Delima Yanti Sari Dicky Pratama Fernando Dori Yuvenda Eko Indrawan Enggian Lubis Erizon, Nelvi Fathur Rahman fatur Rahman, fatur Fauza, Anna Niska Febri Prasetya Fiki Efendi Fikriyyah Hilmy Ardana Firdaus Firdaus Fitra, Dinul Fonny Maswija Priscilla Ghozali, Rahmatul Gifan Ainul Mukhrim Gilang Sanjaya Habib Indra Satrianto Habibie Habibie Hafizd Syahiran nst Hakiim, Evan Ibnu Hafiz Wardhana Imam Qulugqin Azhim Indra, Yoan Alfarezy Irma Yulia Basri Irzal Irzal Irzal, Irzal Jasman Jasman Jasman Kurniawan, Muhammad Ridwan Miswar Miswar Muhammad Aulia Anugrah Muhammad Iqbal Muhammad Iqrha Muhammad Riski Hidayat Muhammad Subakti Muharam, Bananda Mulianti Mulianti Mustaqin, Iqbal Nabawi, Rahmat Azis Nanang Qosim Nelvi Erizon Nensy Aryasandy Nofri Pratama Putra Nur Ichsan Abdillah Nurdin Hendri Pratama, Yuhanda Dicky Primawati Primawati, Primawati Purwantono Purwantono purwantono purwantono Purwantono, Purwantono Putra, Kevinda Putra, Randi Purnama Putra, Rido Rahmad Robby Alzam Rahmadiawan, Dieter Rahmat Mardiansyah Putra Rahmatul Fauzan Mulyadi Ramadhan, Athaya Ramadhan, Qadri Refdinal, Refdinal Refelino, Refelino Remon Lapisa Ressi Novia Windri Rifai Adlani, M. Rifaldo Novembli Rifelino Rifelino Rifelino Rifelino Rifelino Riki Ardianto Rilgy Aulia Rizaldi, Ahmad Rizky Ema Wulansari Rozaki Yudha, Hatami Salwa Chairani Santos, Thiago F. Saputra, Muhammad Pandi Shi, Shih-Chen Susi Marisa Syahril Syahril Syahril Syaputra, Afzan Syauqi Arjunanda Tasyah Tasyah Taufiqul Hamid Teki Haryono Wahyu Ivan Pramana Wahyu Pratama Wahyudi Wahyudi Wanda Afnison Waskito Waskito Waskito Waskito Waskito, Waskito yahril yahril Yandi Saputra Yolli Fernanda Yopi Zekri Jenizah Putra Yopi Zekrri Jenizah Putra Yufrizal Yufrizal Yufrizal Yufrizal, Yufrizal Zhuang, Wei-Ting