Experimental determination of temperature threshold for melt surface deformation during laser interaction on iron at atmospheric pressure
Recoil pressure is the principal driving force of molten metal in laser processing in the intensity range 10 −1 –10 2 MW cm −2 . It is thus essential to estimate the recoil pressure in order to describe physical processes or to carry out numerical simulations. However, there exists no quantitative...
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| Veröffentlicht in: | Journal of physics. D, Applied physics Applied physics, 2011-11, Vol.44 (43), p.435402-1-11 |
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| container_issue | 43 |
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| container_title | Journal of physics. D, Applied physics |
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| creator | Hirano, Koji Fabbro, Remy Muller, Maryse |
| description | Recoil pressure is the principal driving force of molten metal in laser processing in the intensity range 10
−1
–10
2
MW cm
−2
. It is thus essential to estimate the recoil pressure in order to describe physical processes or to carry out numerical simulations. However, there exists no quantitative estimation of the recoil pressure near the boiling temperature (
T
v
), which is particularly important in the welding process. In this study we experimentally investigated the recoil pressure of pure iron around
T
v
. The main interest was to determine the threshold surface temperature to start deformation of melt surface. Using camera-based temperature measurement with accurate evaluation of emissivity from experiment, it was shown that the surface temperature has to reach
T
v
to initiate the melt surface deformation. This result provides the first experimental evidence for the frequently used assumption that a deep keyhole welding requires surface temperature over
T
v
. It is indicated also that, in normal gas-assisted laser cutting process, the recoil pressure hardly contributes to material ejection when the surface temperature is lower than
T
v
, as opposed to the commonly believed presumption. |
| doi_str_mv | 10.1088/0022-3727/44/43/435402 |
| format | Article |
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−1
–10
2
MW cm
−2
. It is thus essential to estimate the recoil pressure in order to describe physical processes or to carry out numerical simulations. However, there exists no quantitative estimation of the recoil pressure near the boiling temperature (
T
v
), which is particularly important in the welding process. In this study we experimentally investigated the recoil pressure of pure iron around
T
v
. The main interest was to determine the threshold surface temperature to start deformation of melt surface. Using camera-based temperature measurement with accurate evaluation of emissivity from experiment, it was shown that the surface temperature has to reach
T
v
to initiate the melt surface deformation. This result provides the first experimental evidence for the frequently used assumption that a deep keyhole welding requires surface temperature over
T
v
. It is indicated also that, in normal gas-assisted laser cutting process, the recoil pressure hardly contributes to material ejection when the surface temperature is lower than
T
v
, as opposed to the commonly believed presumption.</description><identifier>ISSN: 0022-3727</identifier><identifier>EISSN: 1361-6463</identifier><identifier>DOI: 10.1088/0022-3727/44/43/435402</identifier><identifier>CODEN: JPAPBE</identifier><language>eng</language><publisher>Bristol: IOP Publishing</publisher><subject>Boiling ; Condensed matter: structure, mechanical and thermal properties ; Deformation ; Engineering Sciences ; Exact sciences and technology ; Iron ; Melts ; Physical radiation effects, radiation damage ; Physics ; Reactive fluid environment ; Recoil ; Structure of solids and liquids; crystallography ; Surface temperature ; Thresholds ; Ultraviolet, visible, and infrared radiation effects (including laser radiation) ; Welding</subject><ispartof>Journal of physics. D, Applied physics, 2011-11, Vol.44 (43), p.435402-1-11</ispartof><rights>2015 INIST-CNRS</rights><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c480t-4437f7939ee9c42e19486e40b2d0e8afc5d6dcc0870a9c79360ff6ebbb5be7823</citedby><cites>FETCH-LOGICAL-c480t-4437f7939ee9c42e19486e40b2d0e8afc5d6dcc0870a9c79360ff6ebbb5be7823</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://iopscience.iop.org/article/10.1088/0022-3727/44/43/435402/pdf$$EPDF$$P50$$Giop$$H</linktopdf><link.rule.ids>230,314,776,780,881,27901,27902,53805,53885</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=24703439$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://hal.science/hal-00915592$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Hirano, Koji</creatorcontrib><creatorcontrib>Fabbro, Remy</creatorcontrib><creatorcontrib>Muller, Maryse</creatorcontrib><title>Experimental determination of temperature threshold for melt surface deformation during laser interaction on iron at atmospheric pressure</title><title>Journal of physics. D, Applied physics</title><description>Recoil pressure is the principal driving force of molten metal in laser processing in the intensity range 10
−1
–10
2
MW cm
−2
. It is thus essential to estimate the recoil pressure in order to describe physical processes or to carry out numerical simulations. However, there exists no quantitative estimation of the recoil pressure near the boiling temperature (
T
v
), which is particularly important in the welding process. In this study we experimentally investigated the recoil pressure of pure iron around
T
v
. The main interest was to determine the threshold surface temperature to start deformation of melt surface. Using camera-based temperature measurement with accurate evaluation of emissivity from experiment, it was shown that the surface temperature has to reach
T
v
to initiate the melt surface deformation. This result provides the first experimental evidence for the frequently used assumption that a deep keyhole welding requires surface temperature over
T
v
. It is indicated also that, in normal gas-assisted laser cutting process, the recoil pressure hardly contributes to material ejection when the surface temperature is lower than
T
v
, as opposed to the commonly believed presumption.</description><subject>Boiling</subject><subject>Condensed matter: structure, mechanical and thermal properties</subject><subject>Deformation</subject><subject>Engineering Sciences</subject><subject>Exact sciences and technology</subject><subject>Iron</subject><subject>Melts</subject><subject>Physical radiation effects, radiation damage</subject><subject>Physics</subject><subject>Reactive fluid environment</subject><subject>Recoil</subject><subject>Structure of solids and liquids; crystallography</subject><subject>Surface temperature</subject><subject>Thresholds</subject><subject>Ultraviolet, visible, and infrared radiation effects (including laser radiation)</subject><subject>Welding</subject><issn>0022-3727</issn><issn>1361-6463</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNqFkc-K1TAUxoMoeB19BclG0EW9-de0WQ7DjCNcmI2uQ5qeeCNpU5NU9BF8a1M63I3CQEjgnN_3nSQfQm8p-UhJ3x8JYazhHeuOQhwFr6sVhD1DB8olbaSQ_Dk6XKCX6FXO3wkhrezpAf25_bVA8hPMxQQ8QoE0-dkUH2ccHS4w1bYpawJczgnyOYYRu5jwBKHgvCZnLFRdLU27alyTn7_hYDIk7OdqaOxuN2Of6mZKXVPMy7kOtniprtUHXqMXzoQMbx7PK_T17vbLzX1zevj0-eb61FjRk9IIwTvXKa4AlBUMqBK9BEEGNhLojbPtKEdrSd8Ro2wFJXFOwjAM7QBdz_gV-rD7nk3QS326Sb91NF7fX5_0ViNE0bZV7Cet7PudXVL8sUIuevLZQghmhrhmTeuv9qrjakPljtoUc07gLt6U6C0nvUWgtwi0EFpwvedUhe8eZ5hsTXDJzNbni5qJjnDBVeWanfNxuXT_76mX0VWe_ss_cZe_-4WyKg</recordid><startdate>20111102</startdate><enddate>20111102</enddate><creator>Hirano, Koji</creator><creator>Fabbro, Remy</creator><creator>Muller, Maryse</creator><general>IOP Publishing</general><general>Institute of Physics</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7U5</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><scope>1XC</scope><scope>VOOES</scope></search><sort><creationdate>20111102</creationdate><title>Experimental determination of temperature threshold for melt surface deformation during laser interaction on iron at atmospheric pressure</title><author>Hirano, Koji ; Fabbro, Remy ; Muller, Maryse</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c480t-4437f7939ee9c42e19486e40b2d0e8afc5d6dcc0870a9c79360ff6ebbb5be7823</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>Boiling</topic><topic>Condensed matter: structure, mechanical and thermal properties</topic><topic>Deformation</topic><topic>Engineering Sciences</topic><topic>Exact sciences and technology</topic><topic>Iron</topic><topic>Melts</topic><topic>Physical radiation effects, radiation damage</topic><topic>Physics</topic><topic>Reactive fluid environment</topic><topic>Recoil</topic><topic>Structure of solids and liquids; crystallography</topic><topic>Surface temperature</topic><topic>Thresholds</topic><topic>Ultraviolet, visible, and infrared radiation effects (including laser radiation)</topic><topic>Welding</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hirano, Koji</creatorcontrib><creatorcontrib>Fabbro, Remy</creatorcontrib><creatorcontrib>Muller, Maryse</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Hyper Article en Ligne (HAL)</collection><collection>Hyper Article en Ligne (HAL) (Open Access)</collection><jtitle>Journal of physics. D, Applied physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hirano, Koji</au><au>Fabbro, Remy</au><au>Muller, Maryse</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Experimental determination of temperature threshold for melt surface deformation during laser interaction on iron at atmospheric pressure</atitle><jtitle>Journal of physics. D, Applied physics</jtitle><date>2011-11-02</date><risdate>2011</risdate><volume>44</volume><issue>43</issue><spage>435402</spage><epage>1-11</epage><pages>435402-1-11</pages><issn>0022-3727</issn><eissn>1361-6463</eissn><coden>JPAPBE</coden><abstract>Recoil pressure is the principal driving force of molten metal in laser processing in the intensity range 10
−1
–10
2
MW cm
−2
. It is thus essential to estimate the recoil pressure in order to describe physical processes or to carry out numerical simulations. However, there exists no quantitative estimation of the recoil pressure near the boiling temperature (
T
v
), which is particularly important in the welding process. In this study we experimentally investigated the recoil pressure of pure iron around
T
v
. The main interest was to determine the threshold surface temperature to start deformation of melt surface. Using camera-based temperature measurement with accurate evaluation of emissivity from experiment, it was shown that the surface temperature has to reach
T
v
to initiate the melt surface deformation. This result provides the first experimental evidence for the frequently used assumption that a deep keyhole welding requires surface temperature over
T
v
. It is indicated also that, in normal gas-assisted laser cutting process, the recoil pressure hardly contributes to material ejection when the surface temperature is lower than
T
v
, as opposed to the commonly believed presumption.</abstract><cop>Bristol</cop><pub>IOP Publishing</pub><doi>10.1088/0022-3727/44/43/435402</doi><oa>free_for_read</oa></addata></record> |
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| ispartof | Journal of physics. D, Applied physics, 2011-11, Vol.44 (43), p.435402-1-11 |
| issn | 0022-3727 1361-6463 |
| language | eng |
| recordid | cdi_hal_primary_oai_HAL_hal_00915592v1 |
| source | IOP Publishing Journals; Institute of Physics (IOP) Journals - HEAL-Link |
| subjects | Boiling Condensed matter: structure, mechanical and thermal properties Deformation Engineering Sciences Exact sciences and technology Iron Melts Physical radiation effects, radiation damage Physics Reactive fluid environment Recoil Structure of solids and liquids crystallography Surface temperature Thresholds Ultraviolet, visible, and infrared radiation effects (including laser radiation) Welding |
| title | Experimental determination of temperature threshold for melt surface deformation during laser interaction on iron at atmospheric pressure |
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