Agustiawan, Reza (2017) Analisa Besar Arus Pengelasan Terhadap Kekuatan Tarik Dan Kekerasan Pada Sambungan Plat Baja Karbon St 40 Dengan Menggunakan Pengelasan Smaw. Undergraduate thesis, Politeknik Negeri Bengkalis.
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Abstract
Welding that is often used in the construction world in general is welding using welding methods with a shielded metal flame arc or commonly called Shielded Metal Art Welding (SMAW). The SMAW method is widely used at this time because its use is more practical, easier to operate, can be used for all kinds of welding positions and is more efficient. This research was conducted to determine the mechanical properties of ST40 steel, where the welding process uses a current variation of 80A, 100A, 120A with E6018 electrode with a diameter of 2.6 mm, V angle of 60º. Based on the results of the study obtained the highest tensile strength with a current of 80A of 340.87 N / mm2 and the lowest tensile strength at a current of 120A of 330.48 N / mm2. The highest value of violence is found in the current 100A with the average value of each region; the weld is 49.7 kg / mm2, HAZ is 51 kg / mm2, and base metal is 49 kg / mm2. The lowest hardness value is in the current 120A with the average value of each region; welds of 48.8 kg / mm2, HAZ of 49.7 kg / mm2, and base metal of 49.5 kg / mm2.
| Item Type: | Thesis (Undergraduate) | ||||||||
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| Uncontrolled Keywords: | Shielded Metal Art Welding (SMAW), ST40 steel, E6018 electrode, current variation, tensile test, hardness test. | ||||||||
| Subjects: | 410 ILMU TEKNIK > 430 ILMU KETEKNIKAN INDUSTRI > 431 Teknik Mesin (dan Ilmu Permesinan Lain) | ||||||||
| Divisions: | Jurusan Teknik Mesin > Sarjana Terapan Teknik Mesin Produksi dan Perawatan > TUGAS AKHIR | ||||||||
| Depositing User: | Unnamed user with email supianto@polbeng.ac.id | ||||||||
| Date Deposited: | 07 Jul 2023 09:59 | ||||||||
| Last Modified: | 07 Jul 2023 09:59 | ||||||||
| URI: | http://eprints.polbeng.ac.id/id/eprint/8796 |
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