Analisis Pengaruh In Situ Cooling Terhadap Sifat Mekanik Hasil Pengelasan Dua Sisi Friction Stir Weldingaluminium 5083 Pada Kapal Katamaran

Pandia, Libaraski (2014) Analisis Pengaruh In Situ Cooling Terhadap Sifat Mekanik Hasil Pengelasan Dua Sisi Friction Stir Weldingaluminium 5083 Pada Kapal Katamaran. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Dewasa ini kemajuan dalam teknologi pengelasan menjadi lebih kompleks dan sudah berkembang pesat, satu diantaranya adalah Friction Stir Welding (FSW). Perkembangan tersebut bisa didapati pada industri pembangunan kapal, pengelasan FSW digunakan pada sambungan butt joint alas maupun sisi kapal, termasuk pada kapal cepat seperti Katamaran yang berbahan Aluminium. Friction Stir Welding merupakan proses pengelasan yang di promosikan dengan sedikit biaya dan kualitas sambungan yang baik. Hal itu dikarenakan tidak membutuhkan logam pengisi dan bisa menghilangkan atau memperkecil jumlah cacat retak dan porositas. Pada metode FSW ini suhu puncak cenderung tinggi, untuk itu perlu dilakukan inovasi agar hasil pengelasan menjadi lebih maksimal, sebelumnya telah dilakukan metode FSW pengelasan dua sisi, namun suhu puncak masih relative tinggi, maka untuk mengendalikan suhu puncak dilakukan dengan penggunaan pendinginan langsung pada saat proses pengelasan dua sisi FSW. Metode pendinginan langsung dilakukan pada pelat berbahan Aluminium 5083 dengan ukuran 400x300x6 mm, menggunakan mesin miling dengan 3 variasi pendinginan yaitu udara, air, dan oli samping dan dilakukan pengukuran suhu berkala setiap jarak 5 cm selama proses pengelasan berlangsung. Hasil yang diperoleh menunjukan suhu pengelasan pada pendingin air lebih kecil dibanding pendingin lainnya.Dari pengujian mekanik yang dilakukan dapat ditinjau dari pengujian Tarik (Tensile Test) penggunaan pendingin air memiliki nilai kuat Tarik sebesar 299.7 Mpa, nilai yang paling tinggi dibandingkan penggunaan pendingin udara dan oli ============================================================================================================= Nowadays advancement in a welding technology becomes more complex and has been growing rapidly,one of which is the Friction Stir Welding (FSW). These developments can be found in the ship building industry, welding FSW butt joint is used on the connection board and the ship's side, including on a fast boat like the catamaran is made from aluminum. Friction Stir Welding is a welding process that is promoted with minimal cost and good quality connection. That's because not require filler metals and can eliminate or reduce the amount of cracking and porosity defects. At the peak temperature of FSW method tends to be high, it is necessary to do so results welding innovation becomes more leverage, has previously performed two-sided welding FSW method, however, the peak temperature is still relatively high, hence to control the peak temperature is done with the use of direct cooling during the process FSW welding the two sides. Direct cooling method performed on plates made from 5083 Aluminum with size 400x300x6 mm, using miling machine with 3 variations of cooling, namely air, water, and oil temperature measurements were taken aside and periodically every distance of 5 cm during the welding process takes place. The results obtained show welding in the cooling water temperature is smaller than the other coolers. From mechanical testing that (Tensile Test) use water coolers have a tensile strength value of 299.7 Mpa, the highest value compared to the use of air conditioning and oil.

Item Type: Thesis (Undergraduate)
Additional Information: RSKe 671.52 Pan a 3100014056426
Uncontrolled Keywords: Friction Stir Welding (FSW), Aluminium 5083, Suhu, Dua sisi, Pendinginan langsung, dan Mekanik
Subjects: T Technology > TN Mining engineering. Metallurgy > TN879.6 Welding
Divisions: Faculty of Marine Technology (MARTECH) > Marine Engineering > 36202-(S1) Undergraduate Thesis
Depositing User: Yeni Anita Gonti
Date Deposited: 17 Sep 2020 02:35
Last Modified: 17 Sep 2020 02:35
URI: https://repository.its.ac.id/id/eprint/81937

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