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All Journal Jurnal Dedikasi Jurnal Teknik Industri Jurnal Gamma Jurnal technoscientia ROTOR: JURNAL ILMIAH TEKNIK MESIN Journal of Energy, Mechanical, Material and Manufacturing Engineering Adimas : Jurnal Pengabdian Kepada Masyarakat Journal of Innovation in Business and Economics JURNAL TEKNOLOGI TECHNOSCIENTIA Aptekmas : Jurnal Pengabdian Kepada Masyarakat Jurnal Pengabdian Masyarakat Bangsa Ahsana: Jurnal Penelitian dan Pengabdian kepada Masyarakat Sabangka Abdimas Jurnal Pengabdian Masyarakat Sabangka
Nur Subeki
Universitas Muhammadiyah Malang
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Journal : Jurnal Teknik Industri

 1 
Optimalisasi Penggunaan Heat Input pada Pengelasan Pipa Spiral Untuk Meningkatkan Kekuatan Sambungan Subeki, Nur
Jurnal Teknik Industri Vol 10, No 2 (2009): Agustus
Publisher : Department Industrial Engineering, University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (500.439 KB) | DOI: 10.22219/JTIUMM.Vol10.No2.180-185

Abstract

Submerged Arc Welding is a welding process used for  fabrication of pipes, for example spiral welded pipes. The technique can be operated automatically and has a high reliability in many various welding aplication. Some factor affecting the strength of weld metals are heat input, current, chemical composition of filler and flux, welding speed and cooling rate. The purpose of this thes is is to obtaine microstructure containing acicular ferrite which give high strength and low hardness of the submerged arc welded pipes.Material used in this experiment was API 5L X-52 spiral welded steel pipes, Welding was carried out using voltage of 35 volt, welding speed of 13,67 mm/s whereas heat input was varied, namely 2,059 kJ/mm, 2,123 kJ/ mm, 2,187 kJ/mm, 2,252 kJ/mm and 2,316 kJ/mm. A series of mechanical  properties test were carried out including hardness and tensile test. The result show that, an increase in weld heat input make increased the tensile strength but the hardness number  decrease.
Optimalisasi Penggunaan Heat Input pada Pengelasan Pipa Spiral Untuk Meningkatkan Kekuatan Sambungan Nur Subeki
Jurnal Teknik Industri Vol. 10 No. 2 (2009): Agustus
Publisher : Department Industrial Engineering, University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (500.439 KB) | DOI: 10.22219/JTIUMM.Vol10.No2.180-185

Abstract

Submerged Arc Welding is a welding process used for  fabrication of pipes, for example spiral welded pipes. The technique can be operated automatically and has a high reliability in many various welding aplication. Some factor affecting the strength of weld metals are heat input, current, chemical composition of filler and flux, welding speed and cooling rate. The purpose of this thes is is to obtaine microstructure containing acicular ferrite which give high strength and low hardness of the submerged arc welded pipes.Material used in this experiment was API 5L X-52 spiral welded steel pipes, Welding was carried out using voltage of 35 volt, welding speed of 13,67 mm/s whereas heat input was varied, namely 2,059 kJ/mm, 2,123 kJ/ mm, 2,187 kJ/mm, 2,252 kJ/mm and 2,316 kJ/mm. A series of mechanical  properties test were carried out including hardness and tensile test. The result show that, an increase in weld heat input make increased the tensile strength but the hardness number  decrease.
Optimalisasi Komposisi Kandungan MN Pada Filler untuk Mendapatkan Ketangguhan dan Kekerasan Nur Subeki
Jurnal Teknik Industri Vol. 12 No. 1 (2011): Februari
Publisher : Department Industrial Engineering, University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/JTIUMM.Vol12.No1.41-50

Abstract

Submerged Arc Welding (SAW) is a welding process used for fabrication of pipes, for example spiral welded pipes. The technique can be operated automatically and has a high reliability in many various welding applications. Some factors affecting the strength of weld metals are heat input, current, and chemical composition of filler, flux, and base metal. The present investigation aims to study microstructure-hardness relationship of submerged arc spiral welded steel pipes. Material used in this experiment was API 5L X-52 and API 5L X-60 for spiral welded steel pipes. Welding was carried out using voltage of 35 volt, welding speed of 13,67 mm/s whereas composition Mn on the flux was varied, 1.7; 1.4; 1.4 with Mo and 1.09. Microstructure and hardness were conducted on base metal, weld metal and heat affected zone (HAZ). Results show that, an increase in composition of Mn could be increases the amount of acicular ferrite structure in weld metal. The hardness and thougness number is increase correlated with increase number of Mn, but for the composition Mn as 1,7, the number of acicular ferrite is decrease, the consequence of hardness number is decrease.
Co-Authors Agnes Sylvia, Monica Ahmad Mubin Anthonius Anthonius, Anthonius Arief Andrian N. Ary Dwi Astuti Baiq Firyal Salsabila Safitri Daryono Daryono, Daryono Heni Hendaryati Iswanto, P.T. Iswanto, P.T. Jamasri . M. Ulul Albab M.N. Ilman, M.N. Mamungkas, Mohamad Moh. Jufri Moh. Jufri, Moh. Mohamad Irkham Mamungkas Mulyana Mulyana NUR HASANAH Pramojo, Mita Putri Bambang Suprianto, Herry Suwarsono Suwarsono