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All Journal Rotasi Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik Rekayasa Mesin Jurnal Ilmu-Ilmu Peternakan (Indonesian Journal of Animal Science) Journal of Enviromental Engineering and Sustainable Technology Jurnal Ternak Tropika Proceeding ISETH (International Summit on Science, Technology, and Humanity)
Wahyono Suprapto
Universitas Brawijaya
Computer Science & IT Engineering Environmental Science Mechanical Engineering Medicine & Pharmacology Social Sciences Other

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Journal : Journal of Enviromental Engineering and Sustainable Technology

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TORSION STRENGTH OF ROUND BAR A6061 FRICTION WELD JOINT INFLUENCED BY FRICTION TIME, UPSET FORCE AND ONE-SIDE CONE GEOMETRY Yudy Surya Irawan; Wahyono Suprapto; Tjuk Oerbandono
Journal of Environmental Engineering and Sustainable Technology Vol 4, No 2 (2017)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jeest.2017.004.02.3

Abstract

ABSTRACTEffect of friction time, upset force and one-side cone geometry on torsion strength of A6061 round bar friction weld joint was studied. Round bar commercial A6061 was friction welded with initial compression force of 2.5 kN on stationary part and the rotated part had revolution speed of 1600 rpm with variation of friction time of 45, 50 and 55 minutes. In the upset stage, the variation of upset force of 5 kN, 7.5 kN and 10 kN with the same upset holding time of 110 seconds. The stationary part of the specimen had friction area with variation of cone geometry that represented with ratio of upper diameter, D1 and lower diameter, D2, D1/D2. It was found friction time and the ratio of D1/D2 affected torsion strength in the upset force below 10 kN. In case of the higher upset force of 10 kN, the upset force more dominant to affect torsion strength of the continuous drive friction weld (CDFW) joint. The specimen with maximum torsion strength has more precipitates in grains of microstructures compared to that of specimen with lower torsion strength. Keywords: Continuous drive friction welding, aluminum, friction time, upset force, one-sdie cone geometry, torsion strength.
INCREASED TENSILE STRENGTH OF DISSIMILAR FRICTION WELD JOINT OF ROUND BAR A6061/S15C USING UPSET FORCE AND ONE-SIDE CHAMFER ANGLE Yudy Surya Irawan; Dwi Prasetyo; Teguh Dwi Widodo; Wahyono Suprapto; Tjuk Oerbandono
Journal of Environmental Engineering and Sustainable Technology Vol 6, No 1 (2019)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jeest.2019.006.01.2

Abstract

An effort to increase the tensile strength of dissimilar friction weld joint of round bar A6061/S15C was done in this study using upset force and one-side chamfer angle. Commercial round bar aluminum alloy A6061 and carbon steel S15C were used as rotated and a stationary part, respectively in continuous drive friction welding (CDFW) process. Upset force variations of 10.5, 14, and 17.5 kN were used. CDFW process used burn of length of 15 mm for all CDFW specimens. Chamfer angle was machined on friction area of the S15C stationary part with the variation of 0 (without chamfer angle), 30 and 45 degrees. Tensile strength test, macrostructure observation and micro Vickers hardness testing, SEM-EDX analysis were performed. It was found that the smaller chamfer angle (30 degrees) produced maximum tensile strength of A6061/S15C CDFW joint. It occurred due to smaller formed flash, the lower temperature of the flash that indicate lower heat input and caused smaller heat affected zone and higher hardness in the CDFW joint. The higher upset force also yields higher tensile strength of CDFW joint due to the higher degree of plastic deformation during the upset stage of CDFW joint and this state contributes to higher hardness and tensile strength of A6061/S15C CDFW joint. SEM-EDX analysis result also confirmed that more aluminum existed on the fracture surface of the A6061/S15C CDFW specimen with maximum tensile strength.
Co-Authors Agung Sugeng Widodo Ahmad Multazam, Ahmad Alfeus Sunarso Anindito Purnowidodo Devi Andriani Dicky Adi Tyagita Djarot B. Darmadi Dwi Prasetyo Fauzi, Yusuf Rizal Imammuddin, Azam Muzakhim Moch. Agus Choiron Mochammad Junus Mochammad Junus Mohamad Irkham Mamungkas Pah, Jack Carol Adolf Pratikto Pratikto Pungky Eka Setyawan Putra, Muhammad Rezki Fitri Rudy Soenoko Rudy Soenoko Rudy Soenoko Setiawan, Widia Slamet Wahyudi Sonief, Achmad As'ad Sonief, Achmad As’ad Sri Mulyo Bondan Respati Sudjito Soeparman Tawaf, Nanang Teguh Dwi Widodo Tjuk Oerbandono Windi Zamrudy Yudy Surya Irawan Yudy Surya Irawan Yudy Surya Irawan Yurianto Yurianto Yustian Bella