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All Journal TEKNIK Rotasi Jurnal Simetris Jurnal Teknologi Jurnal Mechanical DINAMIKA Jurnal Ilmiah Teknik Mesin Media Mesin: Majalah Teknik Mesin VANOS Journal of Mechanical Engineering Education Jurnal Rekayasa Mesin JMPM (Jurnal Material dan Proses Manufaktur) Jurnal Rekayasa Material, Manufaktur & Energi Jurnal Elemen Jurnal Teknik Mesin Indonesia Infotekmesin STEAM Engineering : Journal of Science, Technology, Education And Mechanical Engineering Abdi Masya Journal of Mechanical Engineering Jurnal Rekayasa Energi dan Mekanika JUKESHUM: Jurnal Pengabdian Masyarakat Perwira Journal of Science and Engineering (PJSE) Teknika Bengawan :Jurnal Pengabdian Masyarakat Jurnal Pengabdian dan Pemberdayaan Masyarakat Indonesia AMMA : Jurnal Pengabdian Masyarakat Jurnal Foundry Nozzle : Journal Mechanical Engineering Perwira Journal of Community Development (PJCD) Jurnal Polimesin Jurnal Pendidikan Teknik Mesin
Nurdin, Akhmad
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PENGARUH JARAK PELAPISAN PADA PROSES THERMAL SPRAY ALUMINIUN (TSA) TERHADAP KEKUATAN IKATAN COATING DAN KETEBALAN LAPISAN PADA BAJA AISI 1020 Ismail, Pitrah Rapi; Sri Hastuti; Catur Pramono; Nurhadi Nurhadi; Wibowo, Rheza Ari; Akhmad Nurdin; Hassany, Ibnu Rosyid Al; Bramono Pandu
ELEMEN : JURNAL TEKNIK MESIN Vol. 11 No. 1 (2024)
Publisher : POLITALA PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/je.v11i1.275

Abstract

Thermal spray arc is a familiar coating method used around 100 years ago. This coating technique was chosen to reduce damage and improve the surface quality of materials with coating bonds that are in direct contact with extreme marine environments. The minimum thickness of the TSA coating is around 100 – 500 µm. According to NACE/AWS/SSPC, a coating layer submerged in seawater will lose 20 µm every year, for a minimum bond strength of 6.89 Mpa. The research aims to analyze the effect of coating distance on AISI 1020 steel. The tests carried out are dry film thickness, pull of adhesive, and bending tests. This research uses distance variations of 150 mm, 250 mm, 350 mm. The research results show that the use of distance has an effect on the bond strength of the layer and the substrate. The best bond strength and bending ability values ​​were found at a distance of 350 mm, with a coating strength of 10.81 Mpa and no bending cracks. Increasing distance variations in the thermal spray process increases bond strength and bending ability.
Pengenalan Program Keselamatan dan Kesehatan Kerja Melalui Penerapan 5S Pada Siswa SMK Leonardo Klaten Al Hassany, Ibnu Rosyid; Nurdin, Akhmad
Perwira Journal of Community Development Vol 4 No 1 (2024)
Publisher : Unperba Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54199/pjcd.v4i1.268

Abstract

SMK Leonardo merupakan salah satu penyelenggara pendidikan jenjang Sekolah Menengah Kejuruan yang terletak di Kecamatan Klaten Utara Kabupaten Klaten. SMK Leonardo memiliki beberapa jurusan, salah satunya jurusan Permesinan dengan pembelajaran praktikum operasional alat-alat seperti mesin bubut, mesin frais, mesin las, serta mesin manufaktur lainnya. Siswa Permesinan kelas XI SMK Leonardo dalam pembelajaran tentang mesin manufaktur belum dibekali dengan program Kesehatan dan Keselamatan Kerja secara penuh, sehingga diperlukan kampanye terhadap siswa tersebut tentang program Kesehatan dan Keselamatan Kerja yang secara khusus diterapkan di lingkungan permesinan dan manufaktur. Kegiatan pengabdian ini bertujuan untuk memberikan pengetahuan dan wawasan tentang program keselamatan dan kesehatan kerja kepada siswa Sekolah Menengah Kejuruan (SMK) pada Siswa Permesinan kelas XI SMK Leonardo agar lebih memperhatikan tentang resiko kecelakaan kerja saat pembelajaran praktikum, selain itu juga sebagai persiapan menjadi tenaga kerja yang lebih berkompeten didunia industri manufaktur maupun industri lainnya. Hasil kegiatan ini menunjukkan kenaikan pengetahuan tentang Kesehatan dan Keselamatan Kerja secara komulatif yang mencapai kenaikan 68,57%.
PELATIHAN PENGGUNAAN ALAT UKUR JANGKA SORONG PADA SISWA SMP ISLAM RUMPUN MUSLIM WONOGIRI Al Hassany, Ibnu Rosyid; Daryanto, Tri; Afandi, Ridwan; Syamsudin, Arif; Atina, Vivin Zulfa; Nurdin, Akhmad
Perwira Journal of Community Development Vol 4 No 2 (2024)
Publisher : Unperba Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54199/pjcd.v4i2.344

Abstract

Salah satu kegiatan praktikum pada pelajaran IPA ialah tentang pengamatan dan pengukuran menggunakan jangka sorong. Berdasarkan hasil wawancara dengan Guru IPA Sekolah Menegah Pertama (SMP) Islam Rumpun Muslim Kecamatan Jatisrono, Kabupaten Wonogiri., kurikulum IPA dengan materi pengukuran jangka sorong hanya diberikan melalui gambar atau display jangka sorong, dan belum dipraktikkan secara langsung. Hal tersebut menyebabkan siswa cukup kesulitan untuk memahami cara kerja atau penggunaan alat ukur tersebut. Sebagai solusi dari tantangan tersebut, pelatihan dan pendampingan penggunaan alat ukur perlu dilakukan di SMP Islam Rumpun Muslim. Program tersebut terdiri atas pemberian fasilitas jangka sorong dan pelatihan penggunaannya. Pelatihan diawali dengan pemberian soal pre-test, dilanjutkan dengan paparan materi dan diskusi, kemudian praktek mengukur dengan jangka sorong, lalu diakhiri dengan post-test. Soal pre-test dan post-test identik. Pelatihan dilaksanakan kepada siswa kelas 7 SMP Islam Rumpun Muslim, dengan jumlah siswa 42. Hasil pre-test menunjukkan bahwa tidak ada siswa yang mampu menjawab dengan benar dari tiga soal yang diberikan. Akan tetapi setelah paparan materi dan praktek langsung, terjadi perbaikan pemahaman siswa mengenai jangka sorong. Hal tersebut ditunjukkan dengan peningkatan presentase siswa yang mampu menjawab dengan benar, pada tahapan post-test. Secara kumulatif, pemahaman siswa mengenai fungsi dan penggunaan jangka sorong meningkat sekitar 37,3%. Praktek langsung penggunaan jangka berdampak positif terhadap pemahaman siswa. Penggunaan alat peraga pada proses pembelajaran terbukti dapat meningkatkan pengetahuan dan pemahaman mengenai materi yang dipelajari oleh siswa.
KAJIAN POTENSI DAN PENGEMBANGAN TURBIN ANGIN DAERAH URBAN Nurdin, Akhmad
Nozzle : Journal Mechanical Engineering Vol 11, No 1 (2022): Nozzle : Journal Mechanical Engineering
Publisher : Politeknik Harapan Bersama Tegal

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30591/nozzle.v11i1.3286

Abstract

In urban areas, wind turbines can be integrated into buildings or called building integrated wind turbines. On the other hand, wind patterns in urban areas are turbulent and have more complex problems. The wind characteristics of a region are different, this is influenced by ground surface conditions. Conditions of high roughness length values, such as urban areas, create a large turbulent zone, besides that at the same time the wind pound buildings and other objects, causing a wind vortex profile. This study discusses the characteristics of the wind and the feasibility of the potential application of wind turbines in urban or urban areas. The purpose of this study was to discuss the phenomenon and potential of wind in urban areas and to review several studies on the application of wind turbines in urban areas.
Analisa Pengaruh Penambahan Seacoal Terhadap Karakteristik Pasir Cetak Greensand Lutiyatmi, Lutiyatmi; Sidiq, Rustam; Hariningsih, Hariningsih; Nurdin, Akhmad
Perwira Journal of Science & Engineering Vol 4 No 1 (2024)
Publisher : Universitas Perwira Purbalingga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54199/pjse.v4i1.266

Abstract

Pengecoran logam adalah proses yang menghasilkan produk, dengan menggunakan media cetakan pasir greensand. Cetakan pasir greensand mudah dibuat dan dapat didaur ulang serta lebih murah. Komposisi pasir grensand utamanya adalah pasir silika, air, bentonite dan bahan aditif. Bahan aditif memiliki peranan penting dalam perubahan sifat pasir cetak greensand, salah satu bahan tersebut adalah seacoal. Penelitian ini bertujuan untuk mengetahui bagaimana pengaruh penambahan bahan aditif seacoal terhadap karakteristik cetakan greensand, sedangkan komposisi dengan menambahkan variasi seacoal sebesar 0,4%, 0,9 %, dan 1,8 %. Pengujian pasir cetak yang dilakukan meliputi pengujian kadar air, kadar clay, kuat tekan dan GFN. Komposisi standar pasir greensand diuji sebagai standar utama yaitu 0% (tanpa menggunakan seacoal) dibandingkan dengan variasi pasir greensand dengan penambahan seacoal. Hasil pengujian menunjukkan perubahan nilai uji kadar air dan kadar clay yang mengalami kenaikan sebelum ditambah seacoal dibanding setelah penambahan variasi 0,4%, namun selanjutnya terjadi kenaikan pada variasi  penambahan 4%, 0,9% dan 1,8%.  Untuk GFN hasil uji terjadi penurunan dari semua variasi. Pengujian permeabilitas terjadi peningkatan nilai uji awal, namun pada variasi 4%, 0,9% dan 1,8% nilai uji mengalami penurunan. 
ANALYSIS OF MECHANICAL CHARACTERISTICS OF TOOTH BUCKET EXCAVATOR BASED ON DIFFERENT GRADE LEVELS nurdin, akhmad; Zulfikar Alief Utama, Iqbal; Angger Prasetiyo, Bagus; Hidayat, Rosyidi; Paundra, Fajar; Kurniawan, Fajri; Yasmin, Dzikrina Salsabila; Muhyi, Abdul
Jurnal Pendidikan Teknik Mesin Vol. 25 No. 02 (2025): December 2025 (on going)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jptm.v25i02.33074

Abstract

The purpose of this study is to comprehend the microstructure and hardness value of three distinct tooth bucket manufacturers. Three manufacturers' excavator tooth buckets—Canada Grade, China Grade A, and China Grade C—are compared for their mechanical characteristics. Among the tests are the Vickers method for measuring hardness, optical microscopy for examining microstructure, and chemical composition analysis. According to the results, the primary elements in all three specimens—carbon, silicon, manganese, and chromium—meet the DIN Grade 25CrMo4 standard. The martensite phase, which gives the Canada product its hardness and resistance to deformation, dominates its microstructure. The China Grade C product, on the other hand, has a more prominent ferrite phase, which raises ductility while decreasing hardness. China Grade C (570.24 HVN) had the highest hardness test value, followed by China Grade A (517.67 HVN) and Canada (468.09 HVN). This demonstrates that while Canada excels at withstanding heavy loads without damage, China Grade C is better suited for applications needing high wear resistance. Users of heavy machinery can use this study as a scientific guide when choosing bucket nails based on operational requirements, including material toughness and wear.
The Effect of Fuel Injection Duration on Exaust Gas Emissions of a 4-Stroke Engine 113.68 CC Using Bioethanol Fuel Zulfikar, Iqbal; Nurdin, Akhmad; Prasetiyo, Angger Bagus; Irawan, Bambang
Jurnal Pendidikan Teknik Mesin Vol. 25 No. 02 (2025): December 2025 (on going)
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jptm.v25i02.33503

Abstract

In Indonesia, the number of motor vehicles using fuel as an energy source is rising quickly. The government has developed renewable energy to reduce fuel consumption because, according to the Downstream Oil and Gas Regulatory Agency (BPH Migas), the consumption of gasoline-type fuels in 2017 was 1,858,875 L/Quarter. Determining the impact of using bioethanol with different injection times on exhaust gas emissions was the aim of this study. Bioethanol is an environmentally friendly alternative fuel for cars that uses less fuel. It is a renewable energy source made from vegetable sources. Variations in fuel injection duration and exhaust gas emission are the main subjects of this study. With no modifications to compression, the engine operates under standard conditions. A gas analyzer and engine speeds of 1500, 2000, 3000, 4000, and 5000 Rpm were used in the study. According to the study's findings, the amount of CO exhaust gas dropped. At 5000 RPM for 4 ms, the lowest CO in bioethanol fuel is 1.21%. With bioethanol fuel, the amount of HC exhaust gas emissions has dropped. 710 ppm at 3000 Rpm for 4 ms is the lowest HC level. When using bioethanol as fuel, the amount of CO2 emissions rises. The maximum CO2 concentration is 6.50% at 5000 RPM for 4 ms. The maximum amount of O2 emissions from bioethanol fuel is recorded at 1500 RPM for 4 ms.
Penerapan Pembuatan Sampel Uji Tarik FCD Type Y-Blok Spesimen pada PT. Aneka Adhilogam Karya Klaten Iqbal Zulfikar Alief Utama; Lutiyatmi; Akhmad Nurdin
AMMA : Jurnal Pengabdian Masyarakat Vol. 4 No. 11 : Desember (2025): AMMA : Jurnal Pengabdian Masyarakat
Publisher : CV. Multi Kreasi Media

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The metal casting process can be briefly interpreted as a sequence of processes for making cast objects that are mutually continuous, starting from the design of the cast object to the final processing process. The Ceper metal casting industry is also a metal casting industry that carries out the casting process, one type of cast product is a product from cast iron with the type of nodular cast iron (FCD) and consumers who order this FCD product come from various groups, both private institutions and government institutions, even internationally. Consumers want the ordered product to be good and high quality, to meet these consumer demands, the metal casting industry that produces products must have their products tested and maintained for quality both in terms of manufacturing and testing. FCD products made in the Ceper metal casting industry, most of the product results and their testing have not been able to meet the standard FCD criteria. The results of supporting tests to determine the type of FCD product include the FCD product manufacturing process, chemical composition tests, hardness, metallography, thermocouples and tensile strength of the products made. The purpose of this study is to obtain quality nodular cast iron (FCD) casting products according to the needs of the Ceper metal casting industry and can reduce the reject ratio of cast products. This community service program was conducted to implement the production of nodular cast iron samples in partner industries, and to conduct the testing process along with the creation of standard samples. Molds for tensile test samples were created and further research was conducted on the method for producing Y-Block Tensile Test Specimens.
Grain Size Variations of Reclaimed CO2 Sand Mold on Hardness and Metal Surface Roughness Khasanah, Sabtun Ismi; Nurdin, Akhmad; Daryanto, Tri
JMPM (Jurnal Material dan Proses Manufaktur) Vol. 7 No. 2 (2023): December
Publisher : Universitas Muhammadiyah Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18196/jmpm.v7i2.17547

Abstract

Studies on reclaiming CO2 sand mould waste have the opportunity to increase productivity. This research was conducted to learn further about the potential of reclaimed CO2 sand moulds. The effect of the grain size of the reclaimed CO2 sand mould on the hardness and metal surface roughness was analyzed. In addition, a comparison of casting quality analysis was carried out between products using new sand and reclaimed CO2 sand moulds. The CO2 sand moulds were crushed and then sieved using 12, 25 and 40 mesh sieves. The sand waste grains were reclaimed through a detergent washing process. SEM-EDS characterization was carried out to determine the elements contained. The hardness of the casting product was tested using the Rockwell method with a load of 981 N. Meanwhile, the metal surface roughness was characterized through the Roughness Test and visual identification using the JIS 82 standard. Based on the results of the SEM-EDS characterization, the three variations of the reclaimed CO2 sand have the potential to be reused. The quality of the hardness and metal surface roughness of the reclaimed CO2 sand with 25 mesh size variation is close to the quality of the casting product using a new sand mould.
Co-Authors Abdul Muhyi Aisiah, Nisa Al Hassany, Ibnu Rosyid Anas Maulana Angger Bagus Prasetiyo Angger Prasetiyo, Bagus Atina, Vivin Zulfa Azam Akmal Nur Irsan Bambang Irawan Bramono Pandu Bramono Pandupradityo Catur Pramono D, Febri Budi D., Henanto Pandu Darsono, Febri Budi Dwi Aries Himawanto Dwi Aries Himawanto Dwi Aries Himawanto Dwi Aries Himawanto Eko Pujiyulianto Fahrezi, Wibi Adrian Fajar Paundra Fajar Paundra Fajar Perdana Nurrullah Fajri Kurniawan Febri Budi Darsono H., Rino Hamid Abdillah Hariningsih, Hariningsih Hasan Bisri Hasan Bisri Bisri Hassany, Ibnu Rosyid Al Hidayat, Rosyidi ibnu rosyid al hassany al hassany Ida Ayu Putu Sri Widnyani Ida Bagus Dharmawan, Ida Bagus Indriyani Indriyani Iqbal Zulfikar Alief Utama Irfan, Angga Ismail, Pitrah Rapi J. Istiyanto Joko Istiyanto K, Putra Andi Khasanah, Sabtun Ismi Laksono Trisnantoro Larasanto Larasanto Lilik Patonah Lutiyatmi Lutiyatmi Lutiyatmi, Lutiyatmi Mahmudi, Anas Yusuf Maulana Aziz Hidayanto Muhammad Munadi Muhammad Munadi Muhammad Rizky Hikmatullah Muhsin Muhsin Muhsin Muhyi, Abdul N, Fajar Perdana N, Muhammad Dwi Nugraha, Rifval Arya Nur Wahid, Nur Nurhadi . Nurhadi Nurhadi Pandupradityo, Bramono Paundra, Fajar Puguh Elmiawan Putty Yunesti Rafidan Triadji Ridwan Afandi Ridwan Afandi Rusiyanto Rusiyanto, Rusiyanto Rustam Sidiq S, Ardi Bagus S, Farid Nanda S. I. Khasanah S. N. Muhammad Sabtun Ismi Khasanah Sanusi, Arizal Ikhsan Setiawan, Faizal Shevalinzi, W. B. A. Sidik, M.farhan Sidiq, Rustam Sinta Rizky Anggraini Sri Hastuti Sri Hastuti Sudibtia Titio Koin Suparni Suparni Syamsudin, Arif Syamsul Hadi Syamsul Hadi Syamsul Hadi Hadi Tri Daryanto Tri Daryanto W.B. A. Shevalinzi Wahyu Anhar C Putra Wibowo, Rheza Ari Xander Salahudin Yasmin, Dzikrina Salsabila Yudi Kurniawan Yusuf Mahmudi, Anas Zulfa Atina, Vivin Zulfikar Alief Utama, Iqbal Zulfikar, Iqbal