Rotary friction welding of 304 stainless steel: parametric study, mechanical properties, and microstructure of the joint

Firmanto, Hudiyo and Candra, Susila and Hadiyat, Mochammad Arbi (2024) Rotary friction welding of 304 stainless steel: parametric study, mechanical properties, and microstructure of the joint. Jurnal Polimesin, 22 (2). pp. 191-198. ISSN 1693-5462; E-ISSN 2549-1999

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Abstract

In the rotary friction welding process, the selection of process parameters affects the friction, heat generation, and joint formation. These factors collectively cause microstructural changes that determine the mechanical properties of the joint. Therefore, the process parameters, microstructure, and mechanical properties were interconnected during rotary friction welding. This study examined the influence of process parameters on their correlation with microstructure and mechanical properties in the rotary friction welding of 304 SS. A 3×4 full factorial experimental design was used to evaluate the effects of the process parameters on the microstructure and strength of 304 SS joints produced through rotary friction welding. An accurate evaluation of joint strength was performed using the notch tensile test technique. The joint with the highest strength was achieved by applying a combination of friction pressure and friction time at 55 bars and 3 seconds, respectively, resulting in a welding efficiency of 103.6%. A very low friction time (i.e., 5 s) produced a weak joint, which should be avoided. The welding process created three distinct structural zones in the joint: a joint structure finer than the parent metal structure, a partially deformed structure, and a heat-affected zone with deformation. Hardness tests of the joints showed a high hardness in the deformed structure. The formed structure contributes to the resulting joint strength.

Item Type:	Article
Uncontrolled Keywords:	Rotary friction welding, AISI 304, factorial, design of experiment, microstructure, tensile strength
Subjects:	T Technology > TJ Mechanical engineering and machinery
Divisions:	Faculty of Engineering > Department of Manufacturing Engineering
Depositing User:	Ir. Hudiyo Firmanto, M.Sc. 6138
Date Deposited:	13 Jun 2024 07:14
Last Modified:	13 Jun 2024 07:14
URI:	http://repository.ubaya.ac.id/id/eprint/46540

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