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All Journal Teknotan: Jurnal Industri Teknologi Pertanian Rekayasa Mesin ROTOR: JURNAL ILMIAH TEKNIK MESIN Jurnal Teknik Terapan (J-TETA) International Journal of Technology, Food and Agriculture
Dicky Adi Tyagita
Jurusan Teknik Mesin Fakultas Teknik Universitas Brawijaya
Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Electrical & Electronics Engineering Energy Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Other

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Journal : Rekayasa Mesin

 1 
Kekuatan Puntir dan Porositas Hasil Sambungan Las Gesek AlMg-Si dengan Variasi Chamfer dan Gaya Tekan Akhir Tyagita, Dicky Adi; Irawan, Yudy Surya; Suprapto, Wahyono
Jurnal Rekayasa Mesin Vol 5, No 1 (2014)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (734.707 KB)

Abstract

Friction welding is the most suitable method for joining aluminum alloys. Aluminum alloys have limitations heat to concentrate only in weld area when used arc or gas welding. That causes it is has good thermal conductivity. The parameters that influence on friction welding are friction time, compressive force, upset force, rotational speed, and chamfer angle. The purpose of the research was to know influence of chamfer angle and upset force on the Al-Mg-Si. The chamfer angles variated 0, 15°, 30°, 45° and upset force variated 157 kgf, 185 kgf and 202 kgf. Specimens were friction welded with rotation speed of 1600 rpm, compressive force 123 kgf for 120 seconds, and upset force variation by 157, 185, 202 kgf for 120 seconds. In addition torsion and porosity testing were also performed on friction welding product. Results showed that specimens with a chamfer angle 15 ° in various upset force has maximum shear strength, so were on specimens with a chamfer angle 15 ° has minimum percentage of porosity in various upset force.Keywords : shear strength, friction welding, chamfer angle, upset force, porosity and Al-Mg-Si
DIMENSIONAL ACCURACY OF 3D PRINTED DOG BONE STRUCTURES Nugroho, Wendy Triadji; Tyagita, Dicky Adi; Wahyudiono, Arif; Suranto, Dwi Djoko
Jurnal Rekayasa Mesin Vol. 16 No. 2 (2025)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v16i2.2158

Abstract

The current study provides a comprehensive discussion regarding statistical analysis of dimensional accuracy comprising thickness, gauge section width, circularity and cylindricity for 3D printed polylactic acid (PLA) specimens according to the dimensional specifications of ASTM D638 standard type IV, which are optimally built via fused deposition modelling (FDM). This work focuses on investigating the primary influences of 3D printing parameters as input factors consisting of nozzle temperature, infill density as well as layer height on dimensional deviation of the printed specimens. The confirmation tests are implemented in this study to ensure the experimental work's reproducibility. The resulting data shows that layer height dominates the effects, namely 80, 88, 81 and 81% on thickness, gauge section width, circularity and cylindricity. Meanwhile, nozzle temperature gives the second considerable influence on dimensional deviation of printed specimens, around 16, 9, 16 and 17%. Conversely, infill density promotes a negligible effect on the dimensional error of such specimens. Furthermore, the confirmation tests indicate that the experimental works are highly reproducible. These findings can contribute significantly to the additive manufacturing technology for PLA material, especially when the printed specimens are used for specific applications in biomedical, engineering and aerospace fields.
Co-Authors Aditya Wahyu Pratama Afianah, Nuzula Afriansyah, Faisal Lutfi Alex Taufiqurrohman Zain Arif Wahyudiono Cahyaning Nur Karimah, Cahyaning Nur Dety Oktavia Sulistiono Faruq Avero Azhar Hastutik, Septi Dwi Irawan, Andik Irawan, Andik Irawan., Kautsar, Syamsiar Nari, Mochammad Irwan Nugroho, Wendy Triadji nuruddin, mochammad Pradista, Bagas Eris Purnomo, Fendik Eko Putri, Salsabila Liandra Rofi'i, Ahmad Sabil, Loisa Gelaro Suranto, Dwi Djoko Wahyono Suprapto Winadi, Aditya Wahyu Yudy Surya Irawan