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Investigation of thixoforming process to enhance mechanical properties for automotive components production

This research presents the works on the behaviour of aluminium 6061 which processed via thixoforming route for automotive components. Thixoforming is a forming process which exploits metal rheological behaviour during solidus and liquidus range temperature. Many research works in thixoforming are cu...

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Main Authors:	Ahmad, Asnul Hadi, Ishak, M., Rashidi, Maarof Mohd, Zakri, Ghazali
Format:	Research Report
Language:	English
Published:	2019
Subjects:	TJ Mechanical engineering and machinery
Online Access:	http://umpir.ump.edu.my/id/eprint/36336/1/Investigation%20of%20thixoforming%20process%20to%20enhance%20mechanical%20properties%20for%20automotive%20components%20production.wm.pdf http://umpir.ump.edu.my/id/eprint/36336/
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spelling	my.ump.umpir.363362023-02-17T03:23:57Z http://umpir.ump.edu.my/id/eprint/36336/ Investigation of thixoforming process to enhance mechanical properties for automotive components production Ahmad, Asnul Hadi Ishak, M. Rashidi, Maarof Mohd Zakri, Ghazali TJ Mechanical engineering and machinery This research presents the works on the behaviour of aluminium 6061 which processed via thixoforming route for automotive components. Thixoforming is a forming process which exploits metal rheological behaviour during solidus and liquidus range temperature. Many research works in thixoforming are currently focusing on the raw material used to produce superior mechanical properties and excellent formability components, especially in automotive industries. Furthermore, the thixoforming process also produced less casting defect components such as macrosegration, shrinkage and porosity. The direct thermal method is one of the methods to create a globular microstructure feedstock billet, which gives the material a thixotropic behaviour during semisolid metal processing. In this experimental work, a molten aluminium 6061 was poured into a cylindrical copper mould before quenched in water at room temperature. The effect of pouring temperature of 660°C and 700°C and holding time of 20s and 60s were observed from the microstructure formation. The result shows that the combination of a pouring temperature of 660°C with a 20s holding time produces a finer near globular microstructure. These fine near globular microstructures gives a thixotropic behaviour improvement in better fluidity for a better flow during shaping. The design and manufacturing dies and molds are very important and vital tools to make sure that semi-solid metal processing process can produce high-quality product. The part was designed by using computer-aided design and fabricated by using a CNC machine. The design and product specification are very important aspects in order to make sure that die manufacturing followed the predetermined criteria. The works also aim to manufacture a die for automotive exhaust valve which is one of the components in a car engine. This research objective also to investigate the parameters that involve in thixoforming operations using hydraulic press machine such as pouring temperature, injection pressure, packing time and die temperature. 2019 Research Report NonPeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/36336/1/Investigation%20of%20thixoforming%20process%20to%20enhance%20mechanical%20properties%20for%20automotive%20components%20production.wm.pdf Ahmad, Asnul Hadi and Ishak, M. and Rashidi, Maarof Mohd and Zakri, Ghazali (2019) Investigation of thixoforming process to enhance mechanical properties for automotive components production. , [Research Report: Research Report] (Unpublished)
institution	Universiti Malaysia Pahang
building	UMP Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Malaysia Pahang
content_source	UMP Institutional Repository
url_provider	http://umpir.ump.edu.my/
language	English
topic	TJ Mechanical engineering and machinery
spellingShingle	TJ Mechanical engineering and machinery Ahmad, Asnul Hadi Ishak, M. Rashidi, Maarof Mohd Zakri, Ghazali Investigation of thixoforming process to enhance mechanical properties for automotive components production
description	This research presents the works on the behaviour of aluminium 6061 which processed via thixoforming route for automotive components. Thixoforming is a forming process which exploits metal rheological behaviour during solidus and liquidus range temperature. Many research works in thixoforming are currently focusing on the raw material used to produce superior mechanical properties and excellent formability components, especially in automotive industries. Furthermore, the thixoforming process also produced less casting defect components such as macrosegration, shrinkage and porosity. The direct thermal method is one of the methods to create a globular microstructure feedstock billet, which gives the material a thixotropic behaviour during semisolid metal processing. In this experimental work, a molten aluminium 6061 was poured into a cylindrical copper mould before quenched in water at room temperature. The effect of pouring temperature of 660°C and 700°C and holding time of 20s and 60s were observed from the microstructure formation. The result shows that the combination of a pouring temperature of 660°C with a 20s holding time produces a finer near globular microstructure. These fine near globular microstructures gives a thixotropic behaviour improvement in better fluidity for a better flow during shaping. The design and manufacturing dies and molds are very important and vital tools to make sure that semi-solid metal processing process can produce high-quality product. The part was designed by using computer-aided design and fabricated by using a CNC machine. The design and product specification are very important aspects in order to make sure that die manufacturing followed the predetermined criteria. The works also aim to manufacture a die for automotive exhaust valve which is one of the components in a car engine. This research objective also to investigate the parameters that involve in thixoforming operations using hydraulic press machine such as pouring temperature, injection pressure, packing time and die temperature.
format	Research Report
author	Ahmad, Asnul Hadi Ishak, M. Rashidi, Maarof Mohd Zakri, Ghazali
author_facet	Ahmad, Asnul Hadi Ishak, M. Rashidi, Maarof Mohd Zakri, Ghazali
author_sort	Ahmad, Asnul Hadi
title	Investigation of thixoforming process to enhance mechanical properties for automotive components production
title_short	Investigation of thixoforming process to enhance mechanical properties for automotive components production
title_full	Investigation of thixoforming process to enhance mechanical properties for automotive components production
title_fullStr	Investigation of thixoforming process to enhance mechanical properties for automotive components production
title_full_unstemmed	Investigation of thixoforming process to enhance mechanical properties for automotive components production
title_sort	investigation of thixoforming process to enhance mechanical properties for automotive components production
publishDate	2019
url	http://umpir.ump.edu.my/id/eprint/36336/1/Investigation%20of%20thixoforming%20process%20to%20enhance%20mechanical%20properties%20for%20automotive%20components%20production.wm.pdf http://umpir.ump.edu.my/id/eprint/36336/
_version_	1758578239367806976
score	13.211869

Investigation of thixoforming process to enhance mechanical properties for automotive components production

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