Internal structure change of carbon tool steel after heat treatment

Carbon steel is normally used in the manufacture of chisels, tools parts where high hardness is required to maintain a sharp cutting edge. But, the most common problems we encountered are the short life of the tool. Hence, it is important to use a suitable medium for quenching process to extend the...

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Main Author:	Chew, Chun Chi
Format:	Undergraduates Project Papers
Language:	English English English English
Published:	2008
Subjects:	TN Mining engineering. Metallurgy
Online Access:	http://umpir.ump.edu.my/id/eprint/212/ http://umpir.ump.edu.my/id/eprint/212/ http://umpir.ump.edu.my/id/eprint/212/10/Internal%20structure%20change%20of%20carbon%20tool%20steel%20after%20heat%20treatment%20-%20table%20of%20content.pdf http://umpir.ump.edu.my/id/eprint/212/7/Internal%20structure%20change%20of%20carbon%20tool%20steel%20after%20heat%20treatment%20-%20abstract.pdf http://umpir.ump.edu.my/id/eprint/212/8/Internal%20structure%20change%20of%20carbon%20tool%20steel%20after%20heat%20treatment%20-%20chapter%201.pdf http://umpir.ump.edu.my/id/eprint/212/9/Internal%20structure%20change%20of%20carbon%20tool%20steel%20after%20heat%20treatment%20-%20references.pdf

id	ump-212
recordtype	eprints
spelling	ump-2122017-04-05T01:53:47Z http://umpir.ump.edu.my/id/eprint/212/ Internal structure change of carbon tool steel after heat treatment Chew, Chun Chi TN Mining engineering. Metallurgy Carbon steel is normally used in the manufacture of chisels, tools parts where high hardness is required to maintain a sharp cutting edge. But, the most common problems we encountered are the short life of the tool. Hence, it is important to use a suitable medium for quenching process to extend the tool life. The main objective of this project is to analyze the internal structure of carbon steel after quenching process. Eventually, the most suitable medium for quenching carbon steel AISI 1045 will be recommended. A carbon steel rod with a diameter of 1.6cm was cut into the size of 2cm in length. Six specimens in the same dimensions were prepared. Each specimen’s surface was ground by using different grade of abrasive paper. After the grinding process, three out of six specimens were undergoing quenching process for one day in three different types of medium; which is oil, water and coolant. However, another three specimens were quenched for one day. After quenching process, all specimens were grinding again to retain shining surface. Diamond liquid was used to polish the surface and then the surface was etched by 2% nital. The internal structure of water and coolant quenching formed finer pearlite while oil quenching formed coarser pearlite. The structures formed have high hardness value ranged from 20.3 HRC to 47.5 HRC. The results were analyzed by using Rockwell hardness tester. The internal structure of specimen was analysed using microscope image analyser equipment and the results were displayed onto computer screen. 2008-11 Undergraduates Project Papers NonPeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/212/10/Internal%20structure%20change%20of%20carbon%20tool%20steel%20after%20heat%20treatment%20-%20table%20of%20content.pdf application/pdf en http://umpir.ump.edu.my/id/eprint/212/7/Internal%20structure%20change%20of%20carbon%20tool%20steel%20after%20heat%20treatment%20-%20abstract.pdf application/pdf en http://umpir.ump.edu.my/id/eprint/212/8/Internal%20structure%20change%20of%20carbon%20tool%20steel%20after%20heat%20treatment%20-%20chapter%201.pdf application/pdf en http://umpir.ump.edu.my/id/eprint/212/9/Internal%20structure%20change%20of%20carbon%20tool%20steel%20after%20heat%20treatment%20-%20references.pdf Chew, Chun Chi (2008) Internal structure change of carbon tool steel after heat treatment. Faculty of Mechanical Engineering, Universiti Malaysia Pahang. http://iportal.ump.edu.my/lib/item?id=chamo:40725&theme=UMP2
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English English English English
topic	TN Mining engineering. Metallurgy
spellingShingle	TN Mining engineering. Metallurgy Chew, Chun Chi Internal structure change of carbon tool steel after heat treatment
description	Carbon steel is normally used in the manufacture of chisels, tools parts where high hardness is required to maintain a sharp cutting edge. But, the most common problems we encountered are the short life of the tool. Hence, it is important to use a suitable medium for quenching process to extend the tool life. The main objective of this project is to analyze the internal structure of carbon steel after quenching process. Eventually, the most suitable medium for quenching carbon steel AISI 1045 will be recommended. A carbon steel rod with a diameter of 1.6cm was cut into the size of 2cm in length. Six specimens in the same dimensions were prepared. Each specimen’s surface was ground by using different grade of abrasive paper. After the grinding process, three out of six specimens were undergoing quenching process for one day in three different types of medium; which is oil, water and coolant. However, another three specimens were quenched for one day. After quenching process, all specimens were grinding again to retain shining surface. Diamond liquid was used to polish the surface and then the surface was etched by 2% nital. The internal structure of water and coolant quenching formed finer pearlite while oil quenching formed coarser pearlite. The structures formed have high hardness value ranged from 20.3 HRC to 47.5 HRC. The results were analyzed by using Rockwell hardness tester. The internal structure of specimen was analysed using microscope image analyser equipment and the results were displayed onto computer screen.
format	Undergraduates Project Papers
author	Chew, Chun Chi
author_facet	Chew, Chun Chi
author_sort	Chew, Chun Chi
title	Internal structure change of carbon tool steel after heat treatment
title_short	Internal structure change of carbon tool steel after heat treatment
title_full	Internal structure change of carbon tool steel after heat treatment
title_fullStr	Internal structure change of carbon tool steel after heat treatment
title_full_unstemmed	Internal structure change of carbon tool steel after heat treatment
title_sort	internal structure change of carbon tool steel after heat treatment
publishDate	2008
url	http://umpir.ump.edu.my/id/eprint/212/ http://umpir.ump.edu.my/id/eprint/212/ http://umpir.ump.edu.my/id/eprint/212/10/Internal%20structure%20change%20of%20carbon%20tool%20steel%20after%20heat%20treatment%20-%20table%20of%20content.pdf http://umpir.ump.edu.my/id/eprint/212/7/Internal%20structure%20change%20of%20carbon%20tool%20steel%20after%20heat%20treatment%20-%20abstract.pdf http://umpir.ump.edu.my/id/eprint/212/8/Internal%20structure%20change%20of%20carbon%20tool%20steel%20after%20heat%20treatment%20-%20chapter%201.pdf http://umpir.ump.edu.my/id/eprint/212/9/Internal%20structure%20change%20of%20carbon%20tool%20steel%20after%20heat%20treatment%20-%20references.pdf
first_indexed	2023-09-18T21:52:09Z
last_indexed	2023-09-18T21:52:09Z
_version_	1777413841020256256

Internal structure change of carbon tool steel after heat treatment

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