Universal Journal of Mechanical Engineering Vol. 11(1), pp. 1 - 12
DOI: 10.13189/ujme.2023.110101
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Effect of Forging Pressure on Mechanical Properties of Two Dissimilar Welded Joints of Austenitic Stainless Steel AISI304 and Low Carbon Steel ST-37 Using Rotary Friction Welding Techniques

Saadalah Akram Saadalah Alghazalah ^1,*, Sabah Mohammed Jamil Mala Ali ^2
1 B. Sc. Mechanical Engineering, University of Mosul, Mosul, Iraq
² Dean of Engineering College, AL-Kitab University, Kirkuk, Iraq

ABSTRACT

The current study focuses on investigating the mechanical properties of joining two dissimilar pieces of Austenitic stainless steel AISI304 and Low carbon steel ST-37 using rotary friction welding techniques. The metals were welded under different rotational speeds 560,1030 and 1800(RPM) using three forging pressures 45, 65, 80(MPa), under variable friction times at each rotational speed. The tensile test, impact test, microhardness distribution and microstructure examination of the welded specimen were carried out. It was noticed that it is possible to reach the ideal welding parameters with applicable mechanical properties at each rotational speed. The tensile strength increased when the forging pressure increased. The maximum tensile strength was 594(Mpa) achieved at a rotational speed of 560(RPM) with joint efficiency 93.5%. The greatest hardness of the welded parts was achieved in the welding interface of all samples and then gradually decreased towards the adjacent area of the welding zone. The hardness increases with increasing rotational speed, or forging pressure. The impact energy decreased when the forging pressure increased, and the maximum impact of energy value 122(J) were available at rotational speed 1030 (RPM) with joint efficiency 97.6%.

KEYWORDS
Rotary Friction Welding, Forging Pressure, Rotational Speed, Mechanical Properties, Tensile Strength, Impact Strength

Cite This Paper in IEEE or APA Citation Styles
(a). IEEE Format:
[1] Saadalah Akram Saadalah Alghazalah , Sabah Mohammed Jamil Mala Ali , "Effect of Forging Pressure on Mechanical Properties of Two Dissimilar Welded Joints of Austenitic Stainless Steel AISI304 and Low Carbon Steel ST-37 Using Rotary Friction Welding Techniques," Universal Journal of Mechanical Engineering, Vol. 11, No. 1, pp. 1 - 12, 2023. DOI: 10.13189/ujme.2023.110101.

(b). APA Format:
Saadalah Akram Saadalah Alghazalah , Sabah Mohammed Jamil Mala Ali (2023). Effect of Forging Pressure on Mechanical Properties of Two Dissimilar Welded Joints of Austenitic Stainless Steel AISI304 and Low Carbon Steel ST-37 Using Rotary Friction Welding Techniques. Universal Journal of Mechanical Engineering, 11(1), 1 - 12. DOI: 10.13189/ujme.2023.110101.