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Iwan Gunawan
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Rancang Bangun Alat Pemeriksa Run Out Roda Gigi menurut Standar ISO 1328 Iwan Gunawan; Antonius Adi Soetopo; Rahmat Romadhona Prayoga
Jurnal Teknologi dan Rekayasa Manufaktur Vol 1 No 2 (2019): Vol 1 No 2 (2019): Volume: 1 | Nomor: 2 | Oktober 2019
Publisher : Pusat Pengembangan, Penelitian dan Pengabdian kepada Masyarat (P4M) Politeknik Manufaktur Bandung (Polman Bandung)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (981.26 KB) | DOI: 10.48182/jtrm.v1i2.12

Abstract

One of the parameters is the reference to the quality of the gear that is run out. Run out is the change in the location of the current element rotates against a fixed point on the axis of reference. The method used to check for errors swivel gear that is by turning the gears are checked with the master gear. Checker tool run out of gears using stepper motors as gear and readings players run out using LVDT sensors. Mechanical construction specifications that is thedistance between spindle capacity maximum 170 mm. Maximum run out that can be read by the LVDT sensor is 3.50 mm. The operating system uses an interface program that can be adapted to the gear to be checked. Inspection run out gear carried on a pair of straight gears are split into two parts with module 2, number of teeth 34. The examination was conductedat four different gear positions, tolerance RCE (radial composite error) allowed for automotive applications (ISO grade 8) is0.09 mm, where the measurement results obtained from the smallest RCE at position 3 (1A on z-1 and 1B on the z -19) at 0.10 mm so we can say that the measured gear can not be used for automotive applications because the measured RCE exceed permissible limits.
Analisis Pengaruh Arus Listrik Pada Proses Pengelasan TIG Terhadap Kekuatan Sambungan Las Material Logam Aluminium 6061 Ilham Khalilulah; Iwan Gunawan; Ari Siswanto
Jurnal Vokasi Mekanika (VoMek) Vol 6 No 4 (2024): Jurnal Vokasi Mekanika
Publisher : Unversitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/vomek.v6i4.831

Abstract

The The selection of current in aluminum welding significantly affects weld joint quality. Excessively high current can lead to increased penetration, distortion, and overmelting. Conversely, low current may result in weak joints, insufficient penetration, and increased porosity risk. This study focuses on understanding the effect of current variations in the Tungsten Inert Gas (TIG) welding process on the strength of 6 mm thick aluminum 6061 welds using ER4043 filler. Tensile strength and flexibility are critical in construction, ensuring strong, stable, and durable welds to withstand static loads. The study found that a welding current of 160A achieved the highest tensile strength, averaging 207.49 MPa. In contrast, 100A yielded the lowest tensile strength at an average of 132.854 MPa, while 130A produced an intermediate average of 154.128 MPa. Bending test results showed that only the 160A weld met standard criteria, whereas welds with 100A and 130A currents exhibited cracks and fractures beyond acceptable limits. Microstructural analysis revealed that the Heat Affected Zone (HAZ) and weld metal at 160A were dominated by the Mg2Si phase, which significantly enhances the mechanical strength of the material. These findings highlight the importance of selecting the appropriate welding current for aluminum 6061. A current of 160A is recommended as the optimal choice to produce strong and reliable weld joints.
The Analisis Pengaruh Arus Listrik Pada Proses Pengelasan Tig Terhadap Kekuatan Sambungan Las Material Logam Aluminium 6061 Ilham Khalilullah; Iwan Gunawan; Ari Siswanto
JTRM (Jurnal Teknologi dan Rekayasa Manufaktur) Vol 7 No 2 (2025): Volume: 7 | Nomor: 2 | Oktober 2025
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat (P3M) Politeknik Manufaktur Bandung (Polman Bandung)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.48182/jtrm.v7i2.189

Abstract

The selection of current in aluminum welding has a significant impact on the quality of the weld joint. Too high a current can cause increased penetration, potential distortion and the risk of overmelting. On the other hand, too low a current can produce a weak weld joint, lack of penetration, and increase the risk of porosity formation. The main focus of this study is to understand the effect of current variations in the Tungsten Inert Gas (TIG) welding process on the strength of 6 mm thick aluminum 6061 welds and using ER4043 filler. The tensile strength and flexibility of the weld joint are very important in construction because they determine the strength, stability, and toughness of the joint to withstand static loads. This study shows that a welding current of 160 Ampere produces the highest tensile strength with an average value of 207.49 MPa, while a current of 100 Ampere has the lowest tensile strength with an average of 132.85 MPa. For a current of 130 Ampere, the average tensile strength was recorded at 154.128 MPa. The bending test results revealed that only welding with a current of 160 Ampere met the standard criteria, while currents of 100 Ampere and 130 Ampere experienced cracks and fractures that exceeded the standard limits. Microstructural analysis showed that in the heat affected zone (HAZ), the Mg2Si phase was most dominant at a current of 160 Ampere, which also applied to the weld metal. This Mg2Si phase contributed to the increase in the mechanical strength of the material. Based on these results, this study emphasizes the importance of choosing the right current in welding aluminum 6061, with a current of 160 Ampere as the best choice to produce strong weld joints.
Co-Authors Antonius Adi Soetopo Ari Siswanto Ilham Khalilulah Ilham Khalilullah Rahmat Romadhona Prayoga