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All Journal Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik Jurnal Ilmiah Teknik Mesin Jurnal Rekayasa Mesin JMPM (Jurnal Material dan Proses Manufaktur) AL-JAZARI JURNAL ILMIAH TEKNIK MESIN Machine : Jurnal Teknik Mesin JURNAL KAJIAN TEKNIK MESIN Teknobiz : Jurnal Ilmiah Program Studi Magister Teknik Mesin JURNAL CRANKSHAFT Motor Bakar : Jurnal Teknik Mesin Quantum Teknika
Aditya Nugraha
Politeknik ATMI Surakarta
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Transportation

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Perancangan dan analisis loader input mesin tempering pada line produksi hot coil spring PT. XYZ Nugraha, Aditya; Setiawan, Agustinus Wisnu; Samudra, Yudha
Machine : Jurnal Teknik Mesin Vol 12 No 1 (2026): Machine : Jurnal Teknik Mesin
Publisher : Jurusan Teknik Mesin Fakultas Sains dan Teknik Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/2k3t0w96

Abstract

Loader merupakan alat pendukung produksi yang berfungsi untuk memindahkan benda kerja dari satu tempat ke tempat lainnya. Loader pada input mesin tempering memiliki prinsip kerja dengan memindahkan benda berupa hot coil spring dari chain conveyor menuju konveyor yang ada pada mesin tempering sebagai proses input benda kerja. Permasalahan utama yang terjadi pada loader adalah kapasitas angkut yang terbatas yaitu 6 benda kerja dalam satu cycle dan terdapat getaran akibat konstruksi loader yang mengayun pada saat perpindahan material. Rancangan baru loader pada input mesin tempering diperlukan untuk meningkatkan kapasitas angkut benda kerja minimal sebesar 50% sesuai dengan permintaan pihak industri dan meminimalkan getaran akbibat gerakan mengayun. Proses perancangan loader input mesin tempering menggunakan metode VDI 2222. Hasil penelitian berupa rancangan baru loader yang memiliki dimensi total sebesar 6000 × 1810 × 3845 mm. Hasil perhitungan dan analisis konstruksi menunjukkan bahwa loader dapat meningkatan kapasitas angkut benda kerja hingga 66% yaitu 10 pcs coil spring,  dan cycle time menurun 29%, dari 11 detik menjadi 7,79 detik.
Effects of Welding Current and Material Thickness on Hardness and Tensile Strength of SPCC Steel Welded Using the Metal Inert Gas (MIG) Process Sutrisno, Sutrisno; S, Yohanes Maria Astomo Dwi; Nugraha, Aditya; Hutama, Adhi Setya; Kristianto, Rudi; Andrian, Yohanes Oscar
Jurnal Rekayasa Mesin Vol. 21 No. 1 (2026): Volume 21, Nomor 1, April 2026
Publisher : Mechanical Engineering Department - Semarang State Polytechnic

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/jrm.v21i1.7211

Abstract

This study investigates the effect of welding current and material thickness on the hardness and tensile strength of cold-rolled SPCC steel welded using the Metal Inert Gas (MIG) process. Welding current was varied at 80 A, 90 A, and 100 A, while material thicknesses of 0.9 mm, 1.4 mm, and 2.0 mm were used. Specimens were prepared according to the ASTM E8 standard for tensile testing. Hardness measurements were conducted in the heat-affected zone (HAZ) and base metal using the Leeb hardness method, while tensile properties were evaluated through tensile testing. The results show that welding current and material thickness significantly affect the mechanical properties of the welded joints. The highest hardness value of 672 HLD was obtained at a welding current of 100 A with a plate thickness of 0.9 mm, whereas the lowest hardness value of 232 HLD occurred at 80 A with a thickness of 2.0 mm. The highest average tensile strength of 340.56 N/mm² was achieved at 90 A with a thickness of 1.4 mm. The results indicate that a moderate welding current provides optimal tensile performance, whereas higher current levels increase hardness due to greater heat input during the welding process. Therefore, appropriate parameter selection is essential to achieve optimal welding performance in thin SPCC steel plates.  
Co-Authors Adhi Setya Hutama Adi Nugroho Agus Kurniawan Agustinus Wisnu Setiawan Aji, Bayu Crisna Alex Satria Wibawa Ana Ningsih Andhy Rinanto Andronikus Cahya Pradana Arif Kurniawan ARIF KURNIAWAN Arifin, Kurniawan Sindu Armunanto, Vinsentius Bram Bayu Prabandono Daniel Ade Kurniawan Franciscus Brian Fredericus Prijo Santoso FX Ristiawan Tri Saputro Hutama, Adhi Satya Hutomo, Rizky Ismartaya, Kristian Karyadi, Bagus Kristian Ismartaya Kristianto, Rudi Kristianto, Titus Gamaliel Leocadia Candra Thomas Madewa, Muhammad Daffa Pahlevi Mahernanda Putanto, Christian Yokevin Mikail Tito Rendo Prawara Mirza Yusuf Mirza Yusuf Muhammad Daffa Pahlevi Madewa Narsetya, Laurensius Abed Novi Misgi Prabowo Adi Nugroho, Yohanes Nugroho, Yohanes Nuriyah, Sinta Perwita Kurniawan Pradana, Ilham Wahyu Prakoso, Redemptus Didik Pramudya, Axel Satya Prasetyo, Hermawan Budi Rafael Bhima Sena Purnama Putra Rinanto, Andhy Rozaq, Almas Abdur S, Yohanes Maria Astomo Dwi Saputro, Yudit Cahyantoro Nyoto Setiawan, Agustinus Wisnu Setiawan, Daniel Calvin Sriyono Stevanus Hanung Tri Budiarto Sutrisno, Sutrisno TH Adi Nugroho Thomas Ganda Wijaya Winata, Pangedi Wohangara, Yoseph Abrian Yanuarius Bagaskara Mahendra Valentara Yohanes Oscar Andrian Yudha Samodra Zad, Muhammad Fairuz