Investigation on tool wear rate for modified and unmodified aluminium-silicon casting alloy

This study demonstrates and explains the effect of strontium modification on machinability of aluminium-silicon eutectic (LM-6 type) alloy. This alloy is known to have many favourable features including weight to strength ratio, high corrosion resistance and excellent castability. However, normal un...

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Main Authors:	Haque, Md. Mohafizul, Khan, Ahsan Ali, Ismail, Ahmad Faris
Format:	Article
Language:	English
Published:	World Scientific Publishing Company 2009
Subjects:	TJ Mechanical engineering and machinery TS200 Metal manufactures. Metalworking
Online Access:	http://irep.iium.edu.my/10091/ http://irep.iium.edu.my/10091/ http://irep.iium.edu.my/10091/ http://irep.iium.edu.my/10091/1/Investigation_On_Tool_Wear_Rate.pdf

id	iium-10091
recordtype	eprints
spelling	iium-100912017-06-14T02:22:52Z http://irep.iium.edu.my/10091/ Investigation on tool wear rate for modified and unmodified aluminium-silicon casting alloy Haque, Md. Mohafizul Khan, Ahsan Ali Ismail, Ahmad Faris TJ Mechanical engineering and machinery TS200 Metal manufactures. Metalworking This study demonstrates and explains the effect of strontium modification on machinability of aluminium-silicon eutectic (LM-6 type) alloy. This alloy is known to have many favourable features including weight to strength ratio, high corrosion resistance and excellent castability. However, normal unmodified LM-6 alloy has poor machinability, which reduces its applications range. In this work, various samples of LM-6 alloy were cast using sand and metallic chill mould with and without strontium addition. Machining on each cast product, was carried out using recommended cutting parameters for Al-Si alloys. Strontium modified samples have recorded a reduction in average flank wear, an increase in shear plane angles and a reduction in chip thickness. The main reason for this improvement is the refining effect of strontium, which reduces the size of the hard silicon particles. As a result, their abrasive action on the tool face has reduced a lot. Dramatic reductions in tool wear rate were recorded when the microstructures were refined. On the other hand, when no refinement of microstructure occurs, tool wear rate becomes high. Chip analysis showed that strontium modified sample produced a thinner chip thickness with a larger shear plane angle, requiring less cutting forces. The tool wear depends not only on the phases present in the work material, but also on their sizes and distribution over entire structure. Thus, strontium modification has better effect on machinability of die cast alloy compared to that of the sand cast LM-6 alloy. World Scientific Publishing Company 2009 Article PeerReviewed application/pdf en http://irep.iium.edu.my/10091/1/Investigation_On_Tool_Wear_Rate.pdf Haque, Md. Mohafizul and Khan, Ahsan Ali and Ismail, Ahmad Faris (2009) Investigation on tool wear rate for modified and unmodified aluminium-silicon casting alloy. International Journal of Modern Physics B, 23 (6-7). pp. 826-831. ISSN 0217-9792 E-ISSN 1793-6578 http://www.worldscinet.com/ijmpb/23/2306n07/S02179792092306n07.html DOI: 10.1142/S0217979209060099
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English
topic	TJ Mechanical engineering and machinery TS200 Metal manufactures. Metalworking
spellingShingle	TJ Mechanical engineering and machinery TS200 Metal manufactures. Metalworking Haque, Md. Mohafizul Khan, Ahsan Ali Ismail, Ahmad Faris Investigation on tool wear rate for modified and unmodified aluminium-silicon casting alloy
description	This study demonstrates and explains the effect of strontium modification on machinability of aluminium-silicon eutectic (LM-6 type) alloy. This alloy is known to have many favourable features including weight to strength ratio, high corrosion resistance and excellent castability. However, normal unmodified LM-6 alloy has poor machinability, which reduces its applications range. In this work, various samples of LM-6 alloy were cast using sand and metallic chill mould with and without strontium addition. Machining on each cast product, was carried out using recommended cutting parameters for Al-Si alloys. Strontium modified samples have recorded a reduction in average flank wear, an increase in shear plane angles and a reduction in chip thickness. The main reason for this improvement is the refining effect of strontium, which reduces the size of the hard silicon particles. As a result, their abrasive action on the tool face has reduced a lot. Dramatic reductions in tool wear rate were recorded when the microstructures were refined. On the other hand, when no refinement of microstructure occurs, tool wear rate becomes high. Chip analysis showed that strontium modified sample produced a thinner chip thickness with a larger shear plane angle, requiring less cutting forces. The tool wear depends not only on the phases present in the work material, but also on their sizes and distribution over entire structure. Thus, strontium modification has better effect on machinability of die cast alloy compared to that of the sand cast LM-6 alloy.
format	Article
author	Haque, Md. Mohafizul Khan, Ahsan Ali Ismail, Ahmad Faris
author_facet	Haque, Md. Mohafizul Khan, Ahsan Ali Ismail, Ahmad Faris
author_sort	Haque, Md. Mohafizul
title	Investigation on tool wear rate for modified and unmodified aluminium-silicon casting alloy
title_short	Investigation on tool wear rate for modified and unmodified aluminium-silicon casting alloy
title_full	Investigation on tool wear rate for modified and unmodified aluminium-silicon casting alloy
title_fullStr	Investigation on tool wear rate for modified and unmodified aluminium-silicon casting alloy
title_full_unstemmed	Investigation on tool wear rate for modified and unmodified aluminium-silicon casting alloy
title_sort	investigation on tool wear rate for modified and unmodified aluminium-silicon casting alloy
publisher	World Scientific Publishing Company
publishDate	2009
url	http://irep.iium.edu.my/10091/ http://irep.iium.edu.my/10091/ http://irep.iium.edu.my/10091/ http://irep.iium.edu.my/10091/1/Investigation_On_Tool_Wear_Rate.pdf
first_indexed	2023-09-18T20:19:33Z
last_indexed	2023-09-18T20:19:33Z
_version_	1777408015059648512

Investigation on tool wear rate for modified and unmodified aluminium-silicon casting alloy

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