Effect of Tool Pin Geometry on the Microhardness and Surface Roughness of Friction Stir Processed Recycled AA 6063

Friction stir processing was experimented on recycled aluminum alloy 6063 to investigate the effects of varying friction stir tool pin geometry and friction stir processing parameters on the microhardness and surface roughness. Different tool pin geometry has great influence on the outcome as it alt...

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Autores principales:	Kia Wai Liew, Yu Zorn Chung, Guo Sheng Teo, Chee Kuang Kok
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	friction stir processing high speed steel recycled aluminum alloy 6063 tool pin geometry surface roughness microstructure Mining engineering. Metallurgy TN1-997
Acceso en línea:	https://doaj.org/article/7e906ebdcdd149949ed8e776c148b6fd
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spelling	oai:doaj.org-article:7e906ebdcdd149949ed8e776c148b6fd2021-11-25T18:21:16ZEffect of Tool Pin Geometry on the Microhardness and Surface Roughness of Friction Stir Processed Recycled AA 606310.3390/met111116952075-4701https://doaj.org/article/7e906ebdcdd149949ed8e776c148b6fd2021-10-01T00:00:00Zhttps://www.mdpi.com/2075-4701/11/11/1695https://doaj.org/toc/2075-4701Friction stir processing was experimented on recycled aluminum alloy 6063 to investigate the effects of varying friction stir tool pin geometry and friction stir processing parameters on the microhardness and surface roughness. Different tool pin geometry has great influence on the outcome as it alters the ability to provide localized heating and better material flow. This study was performed using two different types of tool pin geometry, namely, the cylindrical threaded and the taper threaded pins, across varying rotational speeds and feed rates. The mechanical properties of the processed workpiece were inspected and analyzed in terms of microhardness, microstructure, and surface roughness. The results show that the taper threaded tool offers the highest improvement in microhardness up to 63% at the lowest rotational speed and highest feed rate at 1150 rpm and 30 mm/min, respectively, and this is supported by microscopy images showing finer grains with the compact and homogenous distribution. The taper threaded tool also provided a better surface roughness than the cylindrical threaded tool. However, the surface produced by cylindrical threaded at 30 mm/min feed rates is as smooth and consistent as that of taper threaded tool.Kia Wai LiewYu Zorn ChungGuo Sheng TeoChee Kuang KokMDPI AGarticlefriction stir processinghigh speed steelrecycled aluminum alloy 6063tool pin geometrysurface roughnessmicrostructureMining engineering. MetallurgyTN1-997ENMetals, Vol 11, Iss 1695, p 1695 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	friction stir processing high speed steel recycled aluminum alloy 6063 tool pin geometry surface roughness microstructure Mining engineering. Metallurgy TN1-997
spellingShingle	friction stir processing high speed steel recycled aluminum alloy 6063 tool pin geometry surface roughness microstructure Mining engineering. Metallurgy TN1-997 Kia Wai Liew Yu Zorn Chung Guo Sheng Teo Chee Kuang Kok Effect of Tool Pin Geometry on the Microhardness and Surface Roughness of Friction Stir Processed Recycled AA 6063
description	Friction stir processing was experimented on recycled aluminum alloy 6063 to investigate the effects of varying friction stir tool pin geometry and friction stir processing parameters on the microhardness and surface roughness. Different tool pin geometry has great influence on the outcome as it alters the ability to provide localized heating and better material flow. This study was performed using two different types of tool pin geometry, namely, the cylindrical threaded and the taper threaded pins, across varying rotational speeds and feed rates. The mechanical properties of the processed workpiece were inspected and analyzed in terms of microhardness, microstructure, and surface roughness. The results show that the taper threaded tool offers the highest improvement in microhardness up to 63% at the lowest rotational speed and highest feed rate at 1150 rpm and 30 mm/min, respectively, and this is supported by microscopy images showing finer grains with the compact and homogenous distribution. The taper threaded tool also provided a better surface roughness than the cylindrical threaded tool. However, the surface produced by cylindrical threaded at 30 mm/min feed rates is as smooth and consistent as that of taper threaded tool.
format	article
author	Kia Wai Liew Yu Zorn Chung Guo Sheng Teo Chee Kuang Kok
author_facet	Kia Wai Liew Yu Zorn Chung Guo Sheng Teo Chee Kuang Kok
author_sort	Kia Wai Liew
title	Effect of Tool Pin Geometry on the Microhardness and Surface Roughness of Friction Stir Processed Recycled AA 6063
title_short	Effect of Tool Pin Geometry on the Microhardness and Surface Roughness of Friction Stir Processed Recycled AA 6063
title_full	Effect of Tool Pin Geometry on the Microhardness and Surface Roughness of Friction Stir Processed Recycled AA 6063
title_fullStr	Effect of Tool Pin Geometry on the Microhardness and Surface Roughness of Friction Stir Processed Recycled AA 6063
title_full_unstemmed	Effect of Tool Pin Geometry on the Microhardness and Surface Roughness of Friction Stir Processed Recycled AA 6063
title_sort	effect of tool pin geometry on the microhardness and surface roughness of friction stir processed recycled aa 6063
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/7e906ebdcdd149949ed8e776c148b6fd
work_keys_str_mv	AT kiawailiew effectoftoolpingeometryonthemicrohardnessandsurfaceroughnessoffrictionstirprocessedrecycledaa6063 AT yuzornchung effectoftoolpingeometryonthemicrohardnessandsurfaceroughnessoffrictionstirprocessedrecycledaa6063 AT guoshengteo effectoftoolpingeometryonthemicrohardnessandsurfaceroughnessoffrictionstirprocessedrecycledaa6063 AT cheekuangkok effectoftoolpingeometryonthemicrohardnessandsurfaceroughnessoffrictionstirprocessedrecycledaa6063
_version_	1718411268314890240

Effect of Tool Pin Geometry on the Microhardness and Surface Roughness of Friction Stir Processed Recycled AA 6063

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