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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/212/10/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
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spelling my.ump.umpir.2122021-06-15T07:08:58Z 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.
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
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/212/10/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
http://umpir.ump.edu.my/id/eprint/212/
_version_ 1703960587683233792
score 13.211869

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