Cyclic extrusion compression back pressure technique for hot forging process in direct recycling of aluminium 6061 machining chip

Cyclic extrusion compression back pressure technique for hot forging process in direct recycling of aluminium 6061 machining chip

Direct recycling is an alternative method of recycling waste aluminium chips without melting the materials, unlike in the conventional recycling technique. A compaction stage is the most crucial stage of direct recycling that significantly affects mechanical properties and microstructure. One proble...

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Main Authors: Shahrom, Mohd Syahmi, A. R., Yusoff
Format: Article
Language:English
Published: Elsevier Ltd 2017
Subjects:
TS Manufactures
Online Access:http://umpir.ump.edu.my/id/eprint/18471/
http://umpir.ump.edu.my/id/eprint/18471/
http://umpir.ump.edu.my/id/eprint/18471/
http://umpir.ump.edu.my/id/eprint/18471/1/Cyclic%20extrusion%20compression%20back%20pressure%20technique%20for%20hot%20forging%20process%20in%20direct%20recycling%20of%20aluminium%206061%20machining%20chip.pdf
id ump-18471
recordtype eprints
spelling ump-184712018-12-03T04:16:23Z http://umpir.ump.edu.my/id/eprint/18471/ Cyclic extrusion compression back pressure technique for hot forging process in direct recycling of aluminium 6061 machining chip Shahrom, Mohd Syahmi A. R., Yusoff TS Manufactures Direct recycling is an alternative method of recycling waste aluminium chips without melting the materials, unlike in the conventional recycling technique. A compaction stage is the most crucial stage of direct recycling that significantly affects mechanical properties and microstructure. One problem in direct compaction is low billet density. This study aims to introduce a cyclic extrusion compression back pressure technique for improving billet density, which affects the hardness, particle size and chip boundaries of aluminium alloy 6061 chips during direct recycling of the hot forging process. The experiment design was used as a tool to conduct experiments based on process parameters, such as pressure, back pressure, number of cycles and holding time. A normal compaction technique was used to compare the billet density with the current technique. After the hot forging process, the cyclic porosity and hardness were compared with the original billet material before machining, and the final chip size and boundaries were also analysed. Pressure was identified as the most significant factor affecting the properties of billet density and cyclic hardness. This shows that the current compaction technique can improve billet density by up to 12.11% compared with the direct compaction technique. Consequently, this technique can improve 7% cyclic density and an almost similar hardness as the original billet before machining AA6061. These results are represented by the fine particle size and grain boundaries to improve hardness when the densification is increased. In conclusion, the cyclic extrusion compression back pressure technique successfully improved the hot forging product in the direct recycling process of aluminium chips Elsevier Ltd 2017-10 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/18471/1/Cyclic%20extrusion%20compression%20back%20pressure%20technique%20for%20hot%20forging%20process%20in%20direct%20recycling%20of%20aluminium%206061%20machining%20chip.pdf Shahrom, Mohd Syahmi and A. R., Yusoff (2017) Cyclic extrusion compression back pressure technique for hot forging process in direct recycling of aluminium 6061 machining chip. Journal of Manufacturing Processes, 29. pp. 1-9. ISSN 1526-6125 http://www.sciencedirect.com/science/article/pii/S1526612517301676 DOI: 10.1016/j.jmapro.2017.07.003
repository_type Digital Repository
institution_category Local University
institution Universiti Malaysia Pahang
building UMP Institutional Repository
collection Online Access
language English
topic TS Manufactures
spellingShingle TS Manufactures
Shahrom, Mohd Syahmi
A. R., Yusoff
Cyclic extrusion compression back pressure technique for hot forging process in direct recycling of aluminium 6061 machining chip
description Direct recycling is an alternative method of recycling waste aluminium chips without melting the materials, unlike in the conventional recycling technique. A compaction stage is the most crucial stage of direct recycling that significantly affects mechanical properties and microstructure. One problem in direct compaction is low billet density. This study aims to introduce a cyclic extrusion compression back pressure technique for improving billet density, which affects the hardness, particle size and chip boundaries of aluminium alloy 6061 chips during direct recycling of the hot forging process. The experiment design was used as a tool to conduct experiments based on process parameters, such as pressure, back pressure, number of cycles and holding time. A normal compaction technique was used to compare the billet density with the current technique. After the hot forging process, the cyclic porosity and hardness were compared with the original billet material before machining, and the final chip size and boundaries were also analysed. Pressure was identified as the most significant factor affecting the properties of billet density and cyclic hardness. This shows that the current compaction technique can improve billet density by up to 12.11% compared with the direct compaction technique. Consequently, this technique can improve 7% cyclic density and an almost similar hardness as the original billet before machining AA6061. These results are represented by the fine particle size and grain boundaries to improve hardness when the densification is increased. In conclusion, the cyclic extrusion compression back pressure technique successfully improved the hot forging product in the direct recycling process of aluminium chips
format Article
author Shahrom, Mohd Syahmi
A. R., Yusoff
author_facet Shahrom, Mohd Syahmi
A. R., Yusoff
author_sort Shahrom, Mohd Syahmi
title Cyclic extrusion compression back pressure technique for hot forging process in direct recycling of aluminium 6061 machining chip
title_short Cyclic extrusion compression back pressure technique for hot forging process in direct recycling of aluminium 6061 machining chip
title_full Cyclic extrusion compression back pressure technique for hot forging process in direct recycling of aluminium 6061 machining chip
title_fullStr Cyclic extrusion compression back pressure technique for hot forging process in direct recycling of aluminium 6061 machining chip
title_full_unstemmed Cyclic extrusion compression back pressure technique for hot forging process in direct recycling of aluminium 6061 machining chip
title_sort cyclic extrusion compression back pressure technique for hot forging process in direct recycling of aluminium 6061 machining chip
publisher Elsevier Ltd
publishDate 2017
url http://umpir.ump.edu.my/id/eprint/18471/
http://umpir.ump.edu.my/id/eprint/18471/
http://umpir.ump.edu.my/id/eprint/18471/
http://umpir.ump.edu.my/id/eprint/18471/1/Cyclic%20extrusion%20compression%20back%20pressure%20technique%20for%20hot%20forging%20process%20in%20direct%20recycling%20of%20aluminium%206061%20machining%20chip.pdf
first_indexed 2023-09-18T22:26:11Z
last_indexed 2023-09-18T22:26:11Z
_version_ 1777415982282702848

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