Impact Factor (2025): 6.9
DOI Prefix: 10.47001/IRJIET
In this
study, an attempt was made to obtain a welded joint from the underwater
friction welding (UFW) process. The workpiece material used in this experiment
was AISI 1018 low carbon steel. The experiment was carried out on a friction
welding machine which was designed and manufactured for this purpose. The UFW
process was carried out by varying the spindle rotation used to rotate one of
the workpieces. The friction force was kept constant. The quality of the welded
joints resulting from UFW was determined by measuring the misalignment that
occurs in the weld joint, the macro and micro structures formed, as well as the
mechanical properties of the welded joint. For comparison, friction welding in
air (FW) was also carried out. The results obtained indicate that low spindle
rotation results in high misalignment of the welded joint between the two
workpieces. During the UFW process, rapid cooling occurs so that the
microstructure of the weld metal, TMAZ and HAZ is dominated by a fine pearlite
phase so that the hardness and strength of the weld joint are higher than those
produced by FW process in air.
Country : Indonesia
IRJIET, Volume 8, Issue 5, May 2024 pp. 99-103