Articles
<![CDATA[A PELATIHAN KOMPETENSI PENGELASAN PADA PEMUDA PUTUS SEKOLAH DI AUR DURI INDAH ]]>
<![CDATA[Adri, Junil]]>;
<![CDATA[Irzal, Irzal]]>;
<![CDATA[Erizon, Nelvi]]>;
<![CDATA[Refdinal, Refdinal]]>;
<![CDATA[Ambiyar, Ambiyar]]>;
<![CDATA[Purwantono, Purwantono]]>;
<![CDATA[Yufrizal, Yufrizal]]>;
<![CDATA[Jasman, Jasman]]>;
<![CDATA[Sudiani, Yoni]]>
<![CDATA[ Journal of Community Service Vol 4 No 2 (2022): JCS, Desember 2022 ]]>
Publisher : <![CDATA[Ikatan Dosen Menulis ]]>
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DOI: 10.56670/jcs.v4i2.96
<![CDATA[Terbatasnya lapangan kerja yang tersedia tidak seimbang dengan jumlah angkatan kerja yang setiap tahun bertambah sehingga berdampak pada tingginya jumlah pengangguran. Untuk itu perlu diberikan pendidikan dan keterampilan pada generasi muda. Perencanaan dan pengembangan generasi muda hendaknya disesuaikan dengan kebutuhan akan tenaga kerja serta kesempatan dan lapangan kerja yang tersedia kemudian sistem yang efektif yang dapat menunjangnya. Salah satu upaya meningkatkan keterampilan generasi muda di kelurahan Aur Duri adalah dengan memberikan pelatihan kompetensi langsung kepada generasi muda. Tujuan pelaksanaan pengabdian kepada masyarakat ini adalah untuk melatih generasi muda yang ada di kelurahan Aur Duri dalam bidang kompetensi dasar pengelasan. Kegaitan pelatihan dilakukan dengan metode demonterasi dan projek based leasrnig. Demonterasi dilakukan oleh instuktur bersertifikasi pengelasan. Pelatihan kompetensi dasar pengelasan diikuti oleh 15 orang peserta. Peserta sangat antusias dalam mengikuti peltihan. Peserta yang dianggap sudah mahir diberikan sertifikat yang menjelaskan bahwa peserta tersebut mampu menguasi kompetensi pengelasan dengan baik. Kegiatan ini mampu memberikan bekal kepada generasi muda putus sekolah untuk memasuki dunia kerja ataupun berwirausaha]]>
<![CDATA[Penerapan Metode Project Based Learning pada Mata Kuliah Teknologi Pengelasan Logam di Jurusan Teknik Mesin FT-UNP ]]>
<![CDATA[Fajri, Husnul]]>;
<![CDATA[Purwantono, Purwantono]]>;
<![CDATA[Irzal, Irzal]]>;
<![CDATA[Wulansari, Rizky Ema]]>
<![CDATA[ TSAQOFAH Vol 3 No 5 (2023): SEPTEMBER ]]>
Publisher : <![CDATA[Lembaga Yasin AlSys ]]>
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DOI: 10.58578/tsaqofah.v3i5.1747
<![CDATA[Learning as a learning process built by lecturers to develop creative thinking that can improve students' thinking skills. Project-based learning is a teaching and learning strategy that involves students to work on a project that is useful for solving community or environmental problems. The type of research used is research in the form of classroom action research. However, according to researchers, classroom teaching is not only in a room, but a group of students who are learning. This classroom action research can be done not only in the classroom, but anywhere, as long as there is a group of students who are learning. This study aims to see the results of the application of Project-based learning in Welding Technology Subjects with 29 students of the Department of Mechanical Engineering FT-UNP. The aspects seen in the observation results are visual, oral, listening, writing, monotoric, mental, emotional activities. Aspects seen in student learning outcomes include: project worksheets and assessment sheets. The results of the recapitulation of observation of activeness in Cycle I averaged 60.16% and the percentage of activeness in Cycle II averaged 80.56%. The overall average liveliness between cycles is 70.4% and learning outcomes are 79.65%. Based on the results of classroom action research that has been carried out in 2 (two) cycles in this study, it can be concluded that the application of the project-based learning model can improve learning activeness and learning outcomes of Welding Technology courses of Mechanical Engineering Department Students FT-UNP.]]>
<![CDATA[Hubungan Fasilitas Bengkel terhadap Hasil Belajar Teknik Pemesinan Bubut ]]>
<![CDATA[Saputra, Muhammad Pandi]]>;
<![CDATA[Syahri, Budi]]>;
<![CDATA[Irzal, Irzal]]>;
<![CDATA[Abadi, Zainal]]>
<![CDATA[ Al-DYAS Vol 3 No 1 (2024): FEBRUARI ]]>
Publisher : <![CDATA[Lembaga Yasin AlSys ]]>
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DOI: 10.58578/aldyas.v3i1.2418
<![CDATA[This research focuses on investigating the relationship between workshop facilities and the learning outcomes of lathe machining techniques. The instruments used in this study include questionnaires, practical performance scores, and documentation. A quantitative research method with a descriptive correlational approach was employed. The study took place at SMK Negeri 1 Lintau Buo, with the research subjects being 11th-grade Mechanical Engineering students. The research was conducted in November, and the sample size was determined to be 54 students, divided into two classes: 28 students in class XI Mechanical Engineering 1 and 26 students in class XI Mechanical Engineering 2. The data analysis results indicate a significant and positive correlation between theoretical knowledge and practical outcomes, with a correlation coefficient of 0.625 and a significance value (2-tailed) of 0.000. Therefore, it can be concluded that there is a positive and significant relationship between workshop facilities and the learning outcomes of lathe machining techniques for 11th-grade students at SMK Negeri 1 Lintau Buo. This implies that the relationship between workshop facilities and the learning outcomes of lathe machining techniques falls into the strong category.]]>
<![CDATA[Analisis Risiko Keselamatan Kerja di Mesin Bubut Menggunakan Metode HIRARC ]]>
<![CDATA[Nurmahmudi, Nurmahmudi]]>;
<![CDATA[Rifelino, Rifelino]]>;
<![CDATA[Nabawi, Rahmat Aziz]]>;
<![CDATA[Irzal, Irzal]]>
<![CDATA[ Al-DYAS Vol 3 No 1 (2024): FEBRUARI ]]>
Publisher : <![CDATA[Lembaga Yasin AlSys ]]>
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DOI: 10.58578/aldyas.v3i1.2428
<![CDATA[HIRARC is a series of processes to identify hazards, assess risks, and control risks in work activities. In the context of this research, the author analyzes the safety risks in the machining engineering workshop of SMK Negeri 1 Lembah Melintang using the HIRARC method. This method aims to prevent and reduce workplace accidents and control risks appropriately. This research is descriptive with a qualitative approach. Data sources include primary and secondary data. Data collection techniques involve field observations, interviews, and analysis of standard operating procedure documents in the machining engineering program of SMK Negeri 1 Lembah Melintang. The results show that the level of safety risk in the machining engineering workshop of SMK Negeri 1 Lembah Melintang is at a low level based on the HIRARC method. The risk analysis helps identify potential hazards, assess related risks, and design risk control measures to create a safer working environment.]]>
<![CDATA[Effect of Strong Welding Flow on the Violence of Low Carbon Steel Results of SMAW Welding with Electrodes 7018 ]]>
<![CDATA[Jasman, Jasman]]>;
<![CDATA[Irzal, Irzal]]>;
<![CDATA[Pebrian, Pebrian]]>
<![CDATA[ Teknomekanik Vol. 1 No. 1 (2018): Regular Issue ]]>
Publisher : <![CDATA[Universitas Negeri Padang ]]>
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DOI: 10.24036/tm.v1i1.972
<![CDATA[Welding can be interpreted by the process of joining two metals to the molten metal point. Metal low carbon steel which is easily processed by welding techniques. Strong setting of the welding current will affect the weld. If the current used is too low it will cause the difficulty of igniting the electric arc. Conversely, if the welding current is too high, the electrode will melt too fast. The welding current strength 130A corresponds to the diameter of the 3.2 mm electrode. The purpose of the research was to determine whether or not the influence of welding current on the low carbon steel hardness of SMAW welding results with E7018 electrode. This type of research was carried out by the type of experimental research, the research process was carried out by hardness testing, and the data obtained through the results of hardness testing was followed by observation and analysis of specimens of low carbon steel ST 37 welded by SMAW with different current strength using E-7018 electrode. Low carbon steel specimens from SMAW welding with 130 A welding current using E-7018 electrode have a higher hardness value compared to low carbon steel specimens produced by SMAW with welding current strengths of 100A and 160A using E-7018 electrodes.]]>
<![CDATA[Comparison of Accuracy in Cutting Dental Profiles Between Differential Methods Approach Upward with a Lower Approach to Making Straight Gear Wheels ]]>
<![CDATA[Agustian, Ganda]]>;
<![CDATA[A, Yufrizal]]>;
<![CDATA[Irzal, Irzal]]>
<![CDATA[ Teknomekanik Vol. 1 No. 2 (2018): Regular Issue ]]>
Publisher : <![CDATA[Universitas Negeri Padang ]]>
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DOI: 10.24036/tm.v2i2.1672
<![CDATA[In the world of industrial gear use, it cannot be denied, every machine in the industrial world uses a component, namely gears to move rotating power. For this reason, in making gears the precision of the gear profile must be considered. The purpose of this study is to compare the accuracy of cutting the dental profile between the approach differential method and the approach to the bottom. This research is an experimental research. Based on the results of data analysis on the comparison of the precision of cutting dental profiles between the approach differential methods and the approach to the bottom, the upward approach is more appropriate in terms of thickness and number of teeth. The number of samples used in the study of 12 gears consisting of 6 gears was carried out with the approach differential approach method, and 6 gears were carried out by the differential approach approach method. Each sample is measured in thickness and the number of teeth in a straight gear. After measurement, the data is processed using the t-test formula to see the significant difference in the accuracy of the dental profile. Based on the results of the t-test analysis that has been carried out there are differences in the gears produced. The approach to differential approach to getting better gear results.]]>
<![CDATA[Numerical Analysis of Fluid Flow on Cross Flow and Kaplan Turbine Prototype ]]>
<![CDATA[Purwantono, Purwantono]]>;
<![CDATA[Sidiq, Ahmad Halim]]>;
<![CDATA[Irzal, Irzal]]>;
<![CDATA[Refdinal, Refdinal]]>
<![CDATA[ Teknomekanik Vol. 1 No. 2 (2018): Regular Issue ]]>
Publisher : <![CDATA[Universitas Negeri Padang ]]>
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DOI: 10.24036/tm.v2i1.1972
<![CDATA[Based on previous research conducted by Purwantono about the utilization of exhaust flow from a conventional cross-flow turbine prototype that was used as an inlet of tubin Kaplan [1]. This research was carried out to see how the exhaust flow velocity of each tubin before and after was combined into one combination turbine. This numerical based study uses the Ansys 18.0 application by inputting a 3D design from a conventional turbine prototype which was used as the material for this study. The results obtained in this study show the average of outlet velocity in the Kaplan turbine that uses a velocity outlet from a cross flow turbine of 0.3 m / s greater when it is combined, which is 8.33 m / s and after being combined to 0.38 m / s. The results of this study are expected to contribute to the development of conventional turbines later]]>
<![CDATA[Making Print Tool Gambir Sap Parallel Slinder System ]]>
<![CDATA[Jasman, Jasman]]>;
<![CDATA[Erizon, Nelvi]]>;
<![CDATA[Irzal, Irzal]]>;
<![CDATA[Ardi, Junil]]>
<![CDATA[ Teknomekanik Vol. 2 No. 2 (2019): Regular Issue ]]>
Publisher : <![CDATA[Universitas Negeri Padang ]]>
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DOI: 10.24036/tm.v2i1.3872
<![CDATA[The problems that exist in the former group are the process of knowing the results of processing gambir sap is still done manually. To print 20 kg of gambier sap, it takes about 5 to 8 hours. Through this service activity, the team wanted to overcome the problem by providing a sap gambir. The purpose of implementing this service activity is to provide a solution to the problems faced by gambier farmers in the process of printing sap gambir. The method of applying science and technology carried out in this activity is to provide introductory theories, demonstrations, and practices. The introductory theory is applicable, namely the introduction of tools, how to use them, their functions and application applications in the field. The realization of the service to the community of Kenagarian Lampanjang Sutera Pesisir Selatan Subdistrict was held on October 6, 2018. The tool that was handed over to the community of Kenagarian Lampanjang Kecamatan Sutera was a unit of a parallel cylinder printer. Application of appropriate technology that is applied to processing gambir leaves must be adjusted to the productivity of printed sap gambir. The amount of gambir sap obtained by gambir farmers will adjust the capacity of the gambir sap. The tool devoted to the community has cylindrical media made with wood media with a thickness of 70 m. The mould cylinder will print the sap of gambir according to the size sold on the market and have a gum pushing media from the mould which serves to release the sap that is in the cylinder mould. This driving media is also made using wood.]]>
<![CDATA[Numerical analysis of flow characteristics of the oil-water mixture in stratified-annular horizontal pipe ]]>
<![CDATA[Erizon, Nelvi]]>;
<![CDATA[Jasman, Jasman]]>;
<![CDATA[Irzal, Irzal]]>;
<![CDATA[Aldio, Muhammad Fikhri]]>;
<![CDATA[Saputra, Aprizal]]>;
<![CDATA[Tin, Chau Trung]]>
<![CDATA[ Teknomekanik Vol. 5 No. 2 (2022): Regular Issue ]]>
Publisher : <![CDATA[Universitas Negeri Padang ]]>
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DOI: 10.24036/teknomekanik.v5i2.14572
<![CDATA[The loss of oil fluid flow in the piping system in the petroleum industry due to friction is the cause of low efficiency. To reduce friction loss, the viscosity of petroleum can be lowered by adding water as a mixture. Actually, the flow loss in a piping system is influenced by several factors including flow pattern, fluid type, flow velocity, flow pressure and pipe diameter. This study aims to determine the effect of flow patterns on changes in velocity in the two-phase flow of oil and water in a piping system. This numerical analysis research was carried out using Fluent 6.2 software with variations in the velocity of the oil-water mixture: 0.2, 0.4 and 0.6 m/s. The simulation results show that the greatest pressure loss occurs at a fluid velocity of 0.6 m/s where the flow is stratified mixed. While the smallest pressure loss at a mixture velocity of 0.2 m/s when the flow is stratified smooth. From the results of the study, it can be concluded that the increase in fluid flow velocity has a positive correlation with the increase in the value of flow losses in the pipe.]]>
<![CDATA[Rancang Bangun dan Analisis Kinerja Turbin Angin Sumbu Vertikal Modifikasi Menggunakan Empat Buah Blade ]]>
<![CDATA[Habibie, Habibie]]>;
<![CDATA[Lapisa, Remon]]>;
<![CDATA[Irzal, Irzal]]>;
<![CDATA[Abadi, Zainal]]>
<![CDATA[ MASALIQ Vol 4 No 1 (2024): JANUARI ]]>
Publisher : <![CDATA[Lembaga Yasin AlSys ]]>
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DOI: 10.58578/masaliq.v4i1.2668
<![CDATA[The island country is a characteristic of Indonesia, and is located right on the equator stretching from the island of Sumatra to the island of West Papua. The need for electrical energy is increasing, but the energy generally used to produce electrical energy is fossil energy, and the problem faced by most countries, including Indonesia, is the problem of energy reduction. According to the International Energy Agency (IEA), the electricity needed is 14 terawatts per day, arguably the equivalent of 210 million barrels of oil. The objectives of this research are (1) to design a wind turbine using fiberglass as the basic material, (2) to make a turbine that can utilize wind energy for electricity generation purposes, and (3) to determine the performance of a modified 4-blade vertical wind turbine on the power it produces. can be generated. The type of research carried out uses experimental methods. The test results show that wind turbines made from fiberglass are able to achieve wind turbine efficiency of 50.7%. The conclusion drawn is that the researchers succeeded in designing a wind turbine from fiberglass as the basic material, the wind turbine can rotate properly and can produce electricity. The generator power produced increases as the wind speed increases. A wind turbine using 4 blades at a wind speed of 21.6 m/s, produces a rotation per minute of 250.6 rpm, produces 108.20 watts and a torque of 107.14 Nm.]]>
