Abstract
Consolidation of powder inside Additive Friction Stir (AFS) tool poses a problem of hindering its application. Additive Friction Stir Processing (AFSP) is a simple modification of this technique which can negate this. A slightly modified version of this AFSP is used in the present work to successfully make a 3D deposit structure of height 5 mm and width 64 mm. Microstructural study was done both in longitudinal and transverse directions. Induced isotropy was predicted from similar microstructures in these directions. No layer effect was seen in a particular deposit layer, unlike layered Friction Stir Welding. Also, the microstructure was similar in the deposit along the build-in direction. Reduction in the number of voids that was observed in the deposit might help to increase its hardness and other mechanical properties.
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Acknowledgements
Authors would like to express their thanks to the SERB, CRG, Govt. of India, for the financial assistance provided for the project titled “Mechanical and micro-structural characterization of additive friction stirred (AFS) 3D structures made of Al6061 T6 aluminium powder.” (Project File No. CRG/2018/001338)
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Mukhopadhyay, A., Saha, P. (2021). Microstructural Characterization of Aluminium Alloy 6061 Powder Deposit Made by Friction Stir Based Additive Manufacturing. In: Pandey, P.M., Kumar, P., Sharma, V. (eds) Advances in Production and Industrial Engineering. Lecture Notes in Mechanical Engineering. Springer, Singapore. https://doi.org/10.1007/978-981-15-5519-0_11
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