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
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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: | http://repository.its.ac.id/id/eprint/81937 |
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