Djarot B. Darmadi This email address is being protected from spambots. You need JavaScript enabled to view it.1, Marco Talice2, Akhmad Fandi Fahrizal3, and Eko Siswanto4

1Joining and Welding Research Group (JWERG), Mechanical Engineering Department, Brawijaya University, Malang – 65148, INDONESIA
2PMSquared Engineering S.r.l.s, 99, Via Sidney Sonnino – 09127 Cagliary, ITALY
3Jln Raya Surabaya – Mojokerto km 44, 61301 Mojokerto, INDONESIA
4Production and Processes Laboratory, Mechanical Engineering Department, Brawijaya University, Malang – 65148, INDONESIA


Received: February 14, 2021
Accepted: August 1, 2021
Publication Date: August 29, 2021

 Copyright The Author(s). This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.

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This article discusses the Double Side Friction Stir Welding (DSFSW). The pin length and the rotation direction of the tool are varied to enhance the resulting tensile strength. The reverse DSFSW (DSFSW-R) is proven to provide a higher joint strength due to the mass transfer mechanism that occurs in the DSFSW process. The increase of the pin’s length enlarges the interference zone that multiplies the effect of strain hardening. The strain hardening is severer in DSFSW-R, and the gap between data measured in the DSFSW-R case and the in-line Double Side Friction StirWelding (DSFSW-i) case is wider due to the effect induced by the use of a longer pin.

Keywords: Double side friction stir welding; reverse double side stir friction welding; inline double side stir welding


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