Experimental Investigation of Dry and Cryogenic Friction Stir Welding of AA7075 Aluminium Alloy
An attempt has been made to investigate dry and cryogenic friction stir welding of AA 7075 aluminium alloy, which is predominantly availed in aerospace and defence component industries. These industries avail friction stir welding for joining two nonferrous materials, and minimal deviations and maxi...
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Wiley
2021-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/9961590 |
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| author | A. Praveen Raj Navukkarasan K. Shanmuga Sundaram C. Chandrasekhara Sastry M. A. Muthu Manickam |
| author_facet | A. Praveen Raj Navukkarasan K. Shanmuga Sundaram C. Chandrasekhara Sastry M. A. Muthu Manickam |
| author_sort | A. Praveen Raj Navukkarasan |
| collection | DOAJ |
| description | An attempt has been made to investigate dry and cryogenic friction stir welding of AA 7075 aluminium alloy, which is predominantly availed in aerospace and defence component industries. These industries avail friction stir welding for joining two nonferrous materials, and minimal deviations and maximum strength are the preliminary and long time goal. A cryogenic friction stir welding setup was developed to conduct the joining of two aluminium alloy pipes. An increase of 0.76–42.93% and 3.79–31.24% in microhardness and tensile strength, respectively, is ascertained in cryogenic friction stir welding in correlation to dry friction stir welding of aluminium alloys. TOPSIS evaluation for the experimental run indicated tool profile stepped type, pipe rotation speed of 1000 rpm, welding speed of 50 mm/min, and axial force of 8 kN as close to unity ideal solution for dry and cryogenic friction stir welding of AA 7075 aluminium alloys. The friction stir-welded component under the cryogenic environment showcased drop in temperature, curtailed surface roughness, and fine grain structure owing to reduction in temperature differential occurring at the weld zone. A curtailment of 50.84% is ascertained in the roughness value for cryogenic friction stir welding in correlation to dry friction stir welding of AA 7075 alloy. A decrement of 21.68% is observed in the grain size in the cryogenic condition with correlation to the dry FSW process, indicating a drop in the coarse structure. With the curtailment of grain size and drop in temperature differential, compressive residual factor and corrosion resistance attenuated by 40.14% and 67.17% in the cryogenic FSW process in correlation to the dry FSW process, respectively. |
| format | Article |
| id | doaj-art-1eadc76f6234434cb1078e945783795b |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
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| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-1eadc76f6234434cb1078e945783795b2025-02-03T01:24:50ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422021-01-01202110.1155/2021/99615909961590Experimental Investigation of Dry and Cryogenic Friction Stir Welding of AA7075 Aluminium AlloyA. Praveen Raj Navukkarasan0K. Shanmuga Sundaram1C. Chandrasekhara Sastry2M. A. Muthu Manickam3Department of Mechanical Engineering, CEG Main Campus of Anna University, Chennai, IndiaDepartment of Mechanical Engineering, CEG Main Campus of Anna University, Chennai, IndiaDepartment of Mechanical Engineering, Indian Institute of Information Technology, Design and Manufacturing (IIIT,D & M), Kurnool 518 007, Andhra Pradesh, IndiaCombat Vehicles Research & Development Establishment, Defence R&D Organization (DRDO), Govt. of India, Ministry of Defence, Delhi, IndiaAn attempt has been made to investigate dry and cryogenic friction stir welding of AA 7075 aluminium alloy, which is predominantly availed in aerospace and defence component industries. These industries avail friction stir welding for joining two nonferrous materials, and minimal deviations and maximum strength are the preliminary and long time goal. A cryogenic friction stir welding setup was developed to conduct the joining of two aluminium alloy pipes. An increase of 0.76–42.93% and 3.79–31.24% in microhardness and tensile strength, respectively, is ascertained in cryogenic friction stir welding in correlation to dry friction stir welding of aluminium alloys. TOPSIS evaluation for the experimental run indicated tool profile stepped type, pipe rotation speed of 1000 rpm, welding speed of 50 mm/min, and axial force of 8 kN as close to unity ideal solution for dry and cryogenic friction stir welding of AA 7075 aluminium alloys. The friction stir-welded component under the cryogenic environment showcased drop in temperature, curtailed surface roughness, and fine grain structure owing to reduction in temperature differential occurring at the weld zone. A curtailment of 50.84% is ascertained in the roughness value for cryogenic friction stir welding in correlation to dry friction stir welding of AA 7075 alloy. A decrement of 21.68% is observed in the grain size in the cryogenic condition with correlation to the dry FSW process, indicating a drop in the coarse structure. With the curtailment of grain size and drop in temperature differential, compressive residual factor and corrosion resistance attenuated by 40.14% and 67.17% in the cryogenic FSW process in correlation to the dry FSW process, respectively.http://dx.doi.org/10.1155/2021/9961590 |
| spellingShingle | A. Praveen Raj Navukkarasan K. Shanmuga Sundaram C. Chandrasekhara Sastry M. A. Muthu Manickam Experimental Investigation of Dry and Cryogenic Friction Stir Welding of AA7075 Aluminium Alloy Advances in Materials Science and Engineering |
| title | Experimental Investigation of Dry and Cryogenic Friction Stir Welding of AA7075 Aluminium Alloy |
| title_full | Experimental Investigation of Dry and Cryogenic Friction Stir Welding of AA7075 Aluminium Alloy |
| title_fullStr | Experimental Investigation of Dry and Cryogenic Friction Stir Welding of AA7075 Aluminium Alloy |
| title_full_unstemmed | Experimental Investigation of Dry and Cryogenic Friction Stir Welding of AA7075 Aluminium Alloy |
| title_short | Experimental Investigation of Dry and Cryogenic Friction Stir Welding of AA7075 Aluminium Alloy |
| title_sort | experimental investigation of dry and cryogenic friction stir welding of aa7075 aluminium alloy |
| url | http://dx.doi.org/10.1155/2021/9961590 |
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