Life Enhancement of Transverse Fillet Weld on Welds of HSLA S460G2+M using HFMI/PIT
Dahia Andud1, Muhammad Ikmal Naim Mohd Kamal2, Yupiter HP Manurung3, Farizah Adliza Ghazali4, Norazwani Muhammad Zain5
1Dahia Andud, Fabrication and Joining Section, University Kuala Lumpur Malaysia France Institute, Bandar Baru Bangi, Selangor, Malaysia.
2Muhammad Ikmal Naim Mohd Kamal, Faculty of Mechanical Engineering, Universiti Teknologi Mara, Shah Alam, Selangor, Malaysia.
3Yupiter HP Manurung, Faculty of Mechanical Engineering, Universiti Teknologi Mara, Shah Alam, Selangor, Malaysia.
4Farizah Adliza Ghazali, Fabrication and Joining Section, University Kuala Lumpur Malaysia France Institute, Bandar Baru Bangi, Selangor, Malaysia.
5Norazwani Muhammad. Zain, Fabrication and Joining Section, University Kuala Lumpur Malaysia France Institute, Bandar Baru Bangi, Selangor, Malaysia.
Manuscript received on July 20, 2019. | Revised Manuscript received on August 10, 2019. | Manuscript published on August 30, 2019. | PP: 3388-3391 | Volume-8 Issue-6, August 2019. | Retrieval Number: F9507088619/2019©BEIESP | DOI: 10.35940/ijeat.F9507.088619
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: This study deals with the fatigue life enhancement of the transverse fillet weld on welds of 10mm thickness of the high strength low alloy steel (HSLA) S460G2+M which is treated using high frequency mechanical impact tool called pneumatic impact treatment (HFMI/PIT). Initially, the plate S460g2+M is prepared with groove angles of butt joint and joined using gas metal arc welding (GMAW) with multi-pass welds followed by to weld the transverse attachment over the existing welds to produce a fillet weld on welds. Secondly, the HFMI/PIT treatment is applied on the fillet weld toe using 90Hz frequency, 6 bars of pneumatic pressure and 2 mm pin radius. Thirdly, the fatigue tests with constant amplitude loading are conducted on the untreated and treated specimens by applying 0.1 stress ratio and 55% to 75% stress loading from the yield strength of the base material. All fatigue data were evaluated based on international welding institute (IIW) commission XIII. It is found that the fatigue life of treated specimen is higher as compared with the untreated specimen. However, it is observed that an excessive heat input due to multi-pass welds has insignificant effect to the fatigue life of the untreated specimen.
Keywords: Transverse Fillet weld on welds, HFMI/PIT, FAT class, S460G2 + M.