TY - GEN
T1 - Effect of Preheating on Mechanical Properties and Microstructural Behaviour of Friction Stir Welded Copper Joints
AU - Mayila, Ngazibini
AU - Mashinini, Peter Madindwa
AU - Pita, Mothibeli
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - Copper has a wide range of applications because of its great thermal and electrical conductivity, corrosion and fatigue resistance, and good flexibility. In this paper, the effect of preheating on the mechanical properties of similar friction stir welded plates were investigated. Copper plates were preheated at 450, 550 and 650°C and welded at a rotational speed of 600rpm, a constant transverse speed of 400 mm/min, and a plunge depth of 3,5mm using a cylindrical pin profile. The welded samples were characterized by optical microscope. Tensile and hardness tests were conducted following the ASTM E8-04 and ASTM E92- 82 respectively. The results showed the stir zone consists of fine and equiaxed recrystallized grains with precipitates compared to the parent material. The effect of preheating showed a decrease in the tensile strength of the joint. The average hardness of 650 °C preheated weld joint was reported be the highest as compared to the other joints.
AB - Copper has a wide range of applications because of its great thermal and electrical conductivity, corrosion and fatigue resistance, and good flexibility. In this paper, the effect of preheating on the mechanical properties of similar friction stir welded plates were investigated. Copper plates were preheated at 450, 550 and 650°C and welded at a rotational speed of 600rpm, a constant transverse speed of 400 mm/min, and a plunge depth of 3,5mm using a cylindrical pin profile. The welded samples were characterized by optical microscope. Tensile and hardness tests were conducted following the ASTM E8-04 and ASTM E92- 82 respectively. The results showed the stir zone consists of fine and equiaxed recrystallized grains with precipitates compared to the parent material. The effect of preheating showed a decrease in the tensile strength of the joint. The average hardness of 650 °C preheated weld joint was reported be the highest as compared to the other joints.
KW - copper
KW - friction stir welding
KW - microstructural and mechanical properties
KW - preheating
UR - http://www.scopus.com/inward/record.url?scp=85168764072&partnerID=8YFLogxK
U2 - 10.1109/ICMIMT59138.2023.10199846
DO - 10.1109/ICMIMT59138.2023.10199846
M3 - Conference contribution
AN - SCOPUS:85168764072
T3 - 2023 14th International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2023
SP - 148
EP - 152
BT - 2023 14th International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2023
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 14th International Conference on Mechanical and Intelligent Manufacturing Technologies, ICMIMT 2023
Y2 - 26 May 2023 through 28 May 2023
ER -