The effect of surface hardening on the HQ 705 steel camshaft using static induction hardening and tempering method

Induction hardening (IH) is a popular choice for automotive components such as camshafts for its ability to harden portions of a component selectively. The camshaft will contact the tappet, connected to the rocker arm, to open and close the valve whenever the engine is running. This contact between...

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Main Authors: Nugroho, Sri, Fitriyana, Deni Fajar, Ismail, Rifky, Nurcholis, Thesar Aditya, Cionita, Tezara, Siregar, Januar Parlaungan
Format: Article
Language:English
Published: Universitas Muhammadiyah Magelang 2022
Subjects:
Online Access:http://umpir.ump.edu.my/id/eprint/42634/1/The%20effect%20of%20surface%20hardening%20on%20the%20HQ%20705%20steel%20camshaft.pdf
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author Nugroho, Sri
Fitriyana, Deni Fajar
Ismail, Rifky
Nurcholis, Thesar Aditya
Cionita, Tezara
Siregar, Januar Parlaungan
author_facet Nugroho, Sri
Fitriyana, Deni Fajar
Ismail, Rifky
Nurcholis, Thesar Aditya
Cionita, Tezara
Siregar, Januar Parlaungan
author_sort Nugroho, Sri
collection UMP
description Induction hardening (IH) is a popular choice for automotive components such as camshafts for its ability to harden portions of a component selectively. The camshaft will contact the tappet, connected to the rocker arm, to open and close the valve whenever the engine is running. This contact between the camshaft and the tappet causes wear on the camshaft surface. IH of the camshaft is required to improve wear resistance and service life, as well as core elasticity to absorb high torsional stresses. It is known that studies about IH on camshafts are still very limited. This study aims to determine the effect of the induction hardening and tempering treatment on the mechanical properties of the camshaft made of HQ 705 steel. The induction hardening carried out in this study uses different parameter settings such as heating time and output current. The camshaft specimen is hardened by static induction and then quenched in oil. The specimens are tempered after induction hardening with different temperatures and holding times to adjust the hardness level and reduce brittleness. Hardness, macro photographs, micrograph, and wear tests were conducted to determine the mechanical properties of the camshaft specimen after the induction hardening and tempering process. This study indicates that induction hardening with an output current of 747 A for 15 seconds followed by tempering at 150 °C for 15 seconds on specimen 1 produced the best mechanical properties. On the surface of these specimens found more martensite content while there was no microstructural change on the inside. The surface hardness of these specimens is 44 HRC (Rockwell C Hardness), while the inside is 26 HRC. Meanwhile, specific wear decreased by 45.45%.
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spelling UMPir426342024-10-03T04:24:48Z http://umpir.ump.edu.my/id/eprint/42634/ The effect of surface hardening on the HQ 705 steel camshaft using static induction hardening and tempering method Nugroho, Sri Fitriyana, Deni Fajar Ismail, Rifky Nurcholis, Thesar Aditya Cionita, Tezara Siregar, Januar Parlaungan T Technology (General) TA Engineering (General). Civil engineering (General) TJ Mechanical engineering and machinery TL Motor vehicles. Aeronautics. Astronautics Induction hardening (IH) is a popular choice for automotive components such as camshafts for its ability to harden portions of a component selectively. The camshaft will contact the tappet, connected to the rocker arm, to open and close the valve whenever the engine is running. This contact between the camshaft and the tappet causes wear on the camshaft surface. IH of the camshaft is required to improve wear resistance and service life, as well as core elasticity to absorb high torsional stresses. It is known that studies about IH on camshafts are still very limited. This study aims to determine the effect of the induction hardening and tempering treatment on the mechanical properties of the camshaft made of HQ 705 steel. The induction hardening carried out in this study uses different parameter settings such as heating time and output current. The camshaft specimen is hardened by static induction and then quenched in oil. The specimens are tempered after induction hardening with different temperatures and holding times to adjust the hardness level and reduce brittleness. Hardness, macro photographs, micrograph, and wear tests were conducted to determine the mechanical properties of the camshaft specimen after the induction hardening and tempering process. This study indicates that induction hardening with an output current of 747 A for 15 seconds followed by tempering at 150 °C for 15 seconds on specimen 1 produced the best mechanical properties. On the surface of these specimens found more martensite content while there was no microstructural change on the inside. The surface hardness of these specimens is 44 HRC (Rockwell C Hardness), while the inside is 26 HRC. Meanwhile, specific wear decreased by 45.45%. Universitas Muhammadiyah Magelang 2022-04-23 Article PeerReviewed pdf en cc_by_nc_4 http://umpir.ump.edu.my/id/eprint/42634/1/The%20effect%20of%20surface%20hardening%20on%20the%20HQ%20705%20steel%20camshaft.pdf Nugroho, Sri and Fitriyana, Deni Fajar and Ismail, Rifky and Nurcholis, Thesar Aditya and Cionita, Tezara and Siregar, Januar Parlaungan (2022) The effect of surface hardening on the HQ 705 steel camshaft using static induction hardening and tempering method. Automotive Experiences, 5 (3). pp. 343-354. ISSN 2615-6202. (Published) https://doi.org/10.31603/ae.7029 https://doi.org/10.31603/ae.7029
spellingShingle T Technology (General)
TA Engineering (General). Civil engineering (General)
TJ Mechanical engineering and machinery
TL Motor vehicles. Aeronautics. Astronautics
Nugroho, Sri
Fitriyana, Deni Fajar
Ismail, Rifky
Nurcholis, Thesar Aditya
Cionita, Tezara
Siregar, Januar Parlaungan
The effect of surface hardening on the HQ 705 steel camshaft using static induction hardening and tempering method
title The effect of surface hardening on the HQ 705 steel camshaft using static induction hardening and tempering method
title_full The effect of surface hardening on the HQ 705 steel camshaft using static induction hardening and tempering method
title_fullStr The effect of surface hardening on the HQ 705 steel camshaft using static induction hardening and tempering method
title_full_unstemmed The effect of surface hardening on the HQ 705 steel camshaft using static induction hardening and tempering method
title_short The effect of surface hardening on the HQ 705 steel camshaft using static induction hardening and tempering method
title_sort effect of surface hardening on the hq 705 steel camshaft using static induction hardening and tempering method
topic T Technology (General)
TA Engineering (General). Civil engineering (General)
TJ Mechanical engineering and machinery
TL Motor vehicles. Aeronautics. Astronautics
url http://umpir.ump.edu.my/id/eprint/42634/1/The%20effect%20of%20surface%20hardening%20on%20the%20HQ%20705%20steel%20camshaft.pdf
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