Haris, Muhammad Abdul (2024) PENGARUH VARIASI KUAT ARUS DAN MEDIA PENDINGIN PADA PENGELASAN SMAW BAJA ST41 TERHADAP KEKERASAN DAN STRUKTUR MIKRO. Undergraduate thesis, Universitas 17 Agustus 1945 Surabaya.
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Abstract
Dalam dunia industry, baja merupakan material yang sangat banyak di temukan dari sebagian material dalam pembuatan mesin, kebanyakan baja yang kita jumpai salah satunya adalah ST 41, penyambungan antara dua bagian logam atau lebih menggunakan energi panas bisa disebut dengan pengelasan merupakan hal yang sering kita jumpai dan salah satu pengelasan yang sering kita temui adalah pengelasan SMAW (shield metal arc welding) pemanasan yang berlebihan atau tidak merata dapat mengakibatkan tegangan sisa, distorsi, atau perubahan metalurgi yang tidak di inginkan pada logam induk. Adapun cara untuk memperbaikinya adalah dengan melakukan perubahan pada kuat arus pengelasan dan menggunakan metode pendinginan terhadap logam yang telah dilakukan pengelasan. Adapun tujuan dari penelitiaan ini adalah (1) mengetahui pengaruh variasi kuat arus dan media pendingin terhadap kekerasan pada hasil pengelasan material baja ST 41 (2) mengetahui pengaruh variasi kuat arus dan media pendingin terhadap struktur mikro pada hasil pengelasan baja ST 41 (30 mengetahui pengaruh waktu pendinginan terhadap kekerasan pada hasil pengelasan baja ST 41. Perubahan variasi kuat arus yang digunakan 80A, 100A, 120A dan variasi median pendingin yang digunakan yaitu oli, air coolant, dan air garam dengan perendaman selama 10 menit dan selanjutnya dilakukan pengujian kekerasan dan struktur mikro, untuk mengetahui tingkat kekerasan dan struktur mikro baja ST 41 tersebut.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Uncontrolled Keywords: | Variasi kuat arus, Pengelasan SMAW, Pengaruh media pendingin, Kekerasan, Rockwell, Metalografi, Struktur Mikro, ST 41, Baja Karbon Rendah |
| Subjects: | T Technology > TJ Mechanical engineering and machinery |
| Divisions: | Fakultas Teknik > Program Studi Teknik Mesin |
| Depositing User: | 1421700191 Muhammad Abdul Haris |
| Date Deposited: | 24 Jun 2026 12:05 |
| Last Modified: | 24 Jun 2026 12:05 |
| URI: | http://repository.untag-sby.ac.id/id/eprint/34900 |
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