Enhanced cooling rates in laser directed energy deposition with interlayer peening
Purpose This study aims to investigate the effect of mechanical peening on the cooling rate of a subsequently deposited layer in a hybrid additive manufacturing (AM) process. Design/methodology/approach In this experimental study, 20 layers of 316 L stainless steel are built via directed energy depo...
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Veröffentlicht in: | Rapid prototyping journal 2023-06, Vol.29 (6), p.1289-1298 |
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creator | Mithal, Abeer Maharjan, Niroj Idapalapati, Sridhar |
description | Purpose
This study aims to investigate the effect of mechanical peening on the cooling rate of a subsequently deposited layer in a hybrid additive manufacturing (AM) process.
Design/methodology/approach
In this experimental study, 20 layers of 316 L stainless steel are built via directed energy deposition, with the tenth layer being subject to various peening processes (shot peening, hammer peening and laser shock peening). The microstructure of the eleventh layer of all the samples is then characterized to estimate the cooling rate.
Findings
The measurements indicate that the application of interlayer peening causes a reduction in primary cellular arm spacing and an increase in micro segregation as compared to a sample prepared without interlayer peening. Both factors indicate an increase in the cooling rate brought about by the interlayer peening.
Practical implications
This work provides insight into process design for hybrid AM processes as cooling rates are known to influence mechanical properties in laser-based AM.
Originality/value
To the best of the authors’ knowledge, this work is the first of its kind to evaluate the effects of interlayer peening on a subsequently deposited layer in a hybrid AM process. |
doi_str_mv | 10.1108/RPJ-11-2022-0395 |
format | Article |
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This study aims to investigate the effect of mechanical peening on the cooling rate of a subsequently deposited layer in a hybrid additive manufacturing (AM) process.
Design/methodology/approach
In this experimental study, 20 layers of 316 L stainless steel are built via directed energy deposition, with the tenth layer being subject to various peening processes (shot peening, hammer peening and laser shock peening). The microstructure of the eleventh layer of all the samples is then characterized to estimate the cooling rate.
Findings
The measurements indicate that the application of interlayer peening causes a reduction in primary cellular arm spacing and an increase in micro segregation as compared to a sample prepared without interlayer peening. Both factors indicate an increase in the cooling rate brought about by the interlayer peening.
Practical implications
This work provides insight into process design for hybrid AM processes as cooling rates are known to influence mechanical properties in laser-based AM.
Originality/value
To the best of the authors’ knowledge, this work is the first of its kind to evaluate the effects of interlayer peening on a subsequently deposited layer in a hybrid AM process.</description><identifier>ISSN: 1355-2546</identifier><identifier>EISSN: 1758-7670</identifier><identifier>EISSN: 1355-2546</identifier><identifier>DOI: 10.1108/RPJ-11-2022-0395</identifier><language>eng</language><publisher>Bradford: Emerald Publishing Limited</publisher><subject>Additive manufacturing ; Cooling ; Cooling rate ; Deposition ; Hammer peening ; Interlayers ; Laser applications ; Laser shock processing ; Lasers ; Mechanical properties ; Rapid prototyping ; Residual stress</subject><ispartof>Rapid prototyping journal, 2023-06, Vol.29 (6), p.1289-1298</ispartof><rights>Emerald Publishing Limited</rights><rights>Emerald Publishing Limited.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c353t-c5ca51e20c34e542f859958ef8b59280b9073bfcf19fa6be0155e4ccb877d8533</citedby><cites>FETCH-LOGICAL-c353t-c5ca51e20c34e542f859958ef8b59280b9073bfcf19fa6be0155e4ccb877d8533</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.emerald.com/insight/content/doi/10.1108/RPJ-11-2022-0395/full/html$$EHTML$$P50$$Gemerald$$H</linktohtml><link.rule.ids>314,780,784,21694,27923,27924,53243</link.rule.ids></links><search><creatorcontrib>Mithal, Abeer</creatorcontrib><creatorcontrib>Maharjan, Niroj</creatorcontrib><creatorcontrib>Idapalapati, Sridhar</creatorcontrib><title>Enhanced cooling rates in laser directed energy deposition with interlayer peening</title><title>Rapid prototyping journal</title><description>Purpose
This study aims to investigate the effect of mechanical peening on the cooling rate of a subsequently deposited layer in a hybrid additive manufacturing (AM) process.
Design/methodology/approach
In this experimental study, 20 layers of 316 L stainless steel are built via directed energy deposition, with the tenth layer being subject to various peening processes (shot peening, hammer peening and laser shock peening). The microstructure of the eleventh layer of all the samples is then characterized to estimate the cooling rate.
Findings
The measurements indicate that the application of interlayer peening causes a reduction in primary cellular arm spacing and an increase in micro segregation as compared to a sample prepared without interlayer peening. Both factors indicate an increase in the cooling rate brought about by the interlayer peening.
Practical implications
This work provides insight into process design for hybrid AM processes as cooling rates are known to influence mechanical properties in laser-based AM.
Originality/value
To the best of the authors’ knowledge, this work is the first of its kind to evaluate the effects of interlayer peening on a subsequently deposited layer in a hybrid AM process.</description><subject>Additive manufacturing</subject><subject>Cooling</subject><subject>Cooling rate</subject><subject>Deposition</subject><subject>Hammer peening</subject><subject>Interlayers</subject><subject>Laser applications</subject><subject>Laser shock processing</subject><subject>Lasers</subject><subject>Mechanical properties</subject><subject>Rapid prototyping</subject><subject>Residual stress</subject><issn>1355-2546</issn><issn>1758-7670</issn><issn>1355-2546</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><sourceid>AFKRA</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><recordid>eNptkE1Lw0AQhhdRsFbvHgOeY2d3M8nmKKV-UVCKnpfNZtKmpJu4myL9926pF8HTvDDPOwMPY7cc7jkHNVu9v6acpwKESEGWeMYmvECVFnkB5zFLxFRgll-yqxC2AFxkCBO2WriNcZbqxPZ917p14s1IIWld0plAPqlbT3aMe3Lk14ekpqEP7dj2Lvlux00ER_KdOUR0IHLxwjW7aEwX6OZ3Ttnn4-Jj_pwu355e5g_L1EqUY2rRGuQkwMqMMBONwrJERY2qsBQKqhIKWTW24WVj8oqAI1JmbaWKolYo5ZTdne4Ovv_aUxj1tt97F19qoQSUOWCRRwpOlPV9CJ4aPfh2Z_xBc9BHczqai0EfzemjuViZnSq0I2-6-r_GH9fyB3c9b6M</recordid><startdate>20230602</startdate><enddate>20230602</enddate><creator>Mithal, Abeer</creator><creator>Maharjan, Niroj</creator><creator>Idapalapati, Sridhar</creator><general>Emerald Publishing Limited</general><general>Emerald Group Publishing Limited</general><scope>AAYXX</scope><scope>CITATION</scope><scope>0U~</scope><scope>1-H</scope><scope>7TB</scope><scope>7WY</scope><scope>7WZ</scope><scope>7XB</scope><scope>8AO</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>ABJCF</scope><scope>AFKRA</scope><scope>BENPR</scope><scope>BEZIV</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FR3</scope><scope>F~G</scope><scope>HCIFZ</scope><scope>K6~</scope><scope>L.-</scope><scope>L.0</scope><scope>L6V</scope><scope>M0C</scope><scope>M7S</scope><scope>PQBIZ</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PTHSS</scope><scope>Q9U</scope><scope>S0W</scope></search><sort><creationdate>20230602</creationdate><title>Enhanced cooling rates in laser directed energy deposition with interlayer peening</title><author>Mithal, Abeer ; Maharjan, Niroj ; Idapalapati, Sridhar</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c353t-c5ca51e20c34e542f859958ef8b59280b9073bfcf19fa6be0155e4ccb877d8533</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2023</creationdate><topic>Additive manufacturing</topic><topic>Cooling</topic><topic>Cooling rate</topic><topic>Deposition</topic><topic>Hammer peening</topic><topic>Interlayers</topic><topic>Laser applications</topic><topic>Laser shock processing</topic><topic>Lasers</topic><topic>Mechanical properties</topic><topic>Rapid prototyping</topic><topic>Residual stress</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Mithal, Abeer</creatorcontrib><creatorcontrib>Maharjan, Niroj</creatorcontrib><creatorcontrib>Idapalapati, Sridhar</creatorcontrib><collection>CrossRef</collection><collection>Global News & ABI/Inform Professional</collection><collection>Trade PRO</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>ABI/INFORM Collection</collection><collection>ABI/INFORM Global (PDF only)</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>ProQuest Pharma Collection</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Technology Collection</collection><collection>Materials Science & Engineering Collection</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central</collection><collection>Business Premium Collection</collection><collection>Technology Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>Engineering Research Database</collection><collection>ABI/INFORM Global (Corporate)</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Business Collection</collection><collection>ABI/INFORM Professional Advanced</collection><collection>ABI/INFORM Professional Standard</collection><collection>ProQuest Engineering Collection</collection><collection>ABI/INFORM Global</collection><collection>Engineering Database</collection><collection>ProQuest One Business</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>Engineering Collection</collection><collection>ProQuest Central Basic</collection><collection>DELNET Engineering & Technology Collection</collection><jtitle>Rapid prototyping journal</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Mithal, Abeer</au><au>Maharjan, Niroj</au><au>Idapalapati, Sridhar</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Enhanced cooling rates in laser directed energy deposition with interlayer peening</atitle><jtitle>Rapid prototyping journal</jtitle><date>2023-06-02</date><risdate>2023</risdate><volume>29</volume><issue>6</issue><spage>1289</spage><epage>1298</epage><pages>1289-1298</pages><issn>1355-2546</issn><eissn>1758-7670</eissn><eissn>1355-2546</eissn><abstract>Purpose
This study aims to investigate the effect of mechanical peening on the cooling rate of a subsequently deposited layer in a hybrid additive manufacturing (AM) process.
Design/methodology/approach
In this experimental study, 20 layers of 316 L stainless steel are built via directed energy deposition, with the tenth layer being subject to various peening processes (shot peening, hammer peening and laser shock peening). The microstructure of the eleventh layer of all the samples is then characterized to estimate the cooling rate.
Findings
The measurements indicate that the application of interlayer peening causes a reduction in primary cellular arm spacing and an increase in micro segregation as compared to a sample prepared without interlayer peening. Both factors indicate an increase in the cooling rate brought about by the interlayer peening.
Practical implications
This work provides insight into process design for hybrid AM processes as cooling rates are known to influence mechanical properties in laser-based AM.
Originality/value
To the best of the authors’ knowledge, this work is the first of its kind to evaluate the effects of interlayer peening on a subsequently deposited layer in a hybrid AM process.</abstract><cop>Bradford</cop><pub>Emerald Publishing Limited</pub><doi>10.1108/RPJ-11-2022-0395</doi><tpages>10</tpages><oa>free_for_read</oa></addata></record> |
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source | Standard: Emerald eJournal Premier Collection |
subjects | Additive manufacturing Cooling Cooling rate Deposition Hammer peening Interlayers Laser applications Laser shock processing Lasers Mechanical properties Rapid prototyping Residual stress |
title | Enhanced cooling rates in laser directed energy deposition with interlayer peening |
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