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Temperature Modeling of AISI 1045 Steel during Surface Hardening Processes
A Coupled thermo-mechanical finite element model was employed to simulate the possible effects of varying laser scanning parameters on the surface hardening process for AISI 1045 and AISI 4140 steels. We took advantage of the high-power density of laser beams to heat the surface of workpieces quickl...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6213357/ https://www.ncbi.nlm.nih.gov/pubmed/30257417 http://dx.doi.org/10.3390/ma11101815 |
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author | Hung, Tsung-Pin Shi, Hao-En Kuang, Jao-Hwa |
author_facet | Hung, Tsung-Pin Shi, Hao-En Kuang, Jao-Hwa |
author_sort | Hung, Tsung-Pin |
collection | PubMed |
description | A Coupled thermo-mechanical finite element model was employed to simulate the possible effects of varying laser scanning parameters on the surface hardening process for AISI 1045 and AISI 4140 steels. We took advantage of the high-power density of laser beams to heat the surface of workpieces quickly to achieve self-quenching effects. The finite element model, along with the temperature-dependent material properties, was applied to characterize the possible quenching and tempering effects during single-track laser surface heat treatment. We verified the accuracy of the proposed model through experiments. The effects of laser surface hardening parameters, such as power variation, scanning speed, and laser spot size, on the surface temperature distribution, hardening width, and hardening depth variations during the single-track surface laser treatment process, were investigated using the proposed model. The analysis results show that laser power and scanning speed are the key parameters that affect the hardening of the material. The numerical results reveal that the proposed finite element model is able to simulate the laser surface heat treatment process and tempering effect of steel. |
format | Online Article Text |
id | pubmed-6213357 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-62133572018-11-14 Temperature Modeling of AISI 1045 Steel during Surface Hardening Processes Hung, Tsung-Pin Shi, Hao-En Kuang, Jao-Hwa Materials (Basel) Article A Coupled thermo-mechanical finite element model was employed to simulate the possible effects of varying laser scanning parameters on the surface hardening process for AISI 1045 and AISI 4140 steels. We took advantage of the high-power density of laser beams to heat the surface of workpieces quickly to achieve self-quenching effects. The finite element model, along with the temperature-dependent material properties, was applied to characterize the possible quenching and tempering effects during single-track laser surface heat treatment. We verified the accuracy of the proposed model through experiments. The effects of laser surface hardening parameters, such as power variation, scanning speed, and laser spot size, on the surface temperature distribution, hardening width, and hardening depth variations during the single-track surface laser treatment process, were investigated using the proposed model. The analysis results show that laser power and scanning speed are the key parameters that affect the hardening of the material. The numerical results reveal that the proposed finite element model is able to simulate the laser surface heat treatment process and tempering effect of steel. MDPI 2018-09-25 /pmc/articles/PMC6213357/ /pubmed/30257417 http://dx.doi.org/10.3390/ma11101815 Text en © 2018 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Hung, Tsung-Pin Shi, Hao-En Kuang, Jao-Hwa Temperature Modeling of AISI 1045 Steel during Surface Hardening Processes |
title | Temperature Modeling of AISI 1045 Steel during Surface Hardening Processes |
title_full | Temperature Modeling of AISI 1045 Steel during Surface Hardening Processes |
title_fullStr | Temperature Modeling of AISI 1045 Steel during Surface Hardening Processes |
title_full_unstemmed | Temperature Modeling of AISI 1045 Steel during Surface Hardening Processes |
title_short | Temperature Modeling of AISI 1045 Steel during Surface Hardening Processes |
title_sort | temperature modeling of aisi 1045 steel during surface hardening processes |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6213357/ https://www.ncbi.nlm.nih.gov/pubmed/30257417 http://dx.doi.org/10.3390/ma11101815 |
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