Relationship between pool characteristic and weld porosity in laser arc hybrid welding of AA6082 aluminum alloy
Effects of welding parameters on the porosity of laser arc hybrid welded AA6082 aluminum alloy were investigated. The percent porosity was examined by X-ray non-destructive testing. The pool shapes were characterized by weld transverse and longitudinal profiles, which were observed by optical and sc...
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| Veröffentlicht in: | Journal of materials processing technology 2017-02, Vol.240, p.217-222 |
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| creator | Zhang, Chen Gao, Ming Wang, Dengzhi Yin, Jie Zeng, Xiaoyan |
| description | Effects of welding parameters on the porosity of laser arc hybrid welded AA6082 aluminum alloy were investigated. The percent porosity was examined by X-ray non-destructive testing. The pool shapes were characterized by weld transverse and longitudinal profiles, which were observed by optical and scanning electron microscopes with elemental tracer technique, respectively. Under optimized welding parameters, the weld porosity could be reduced to less than 0.5%. It was found that the pool shape characteristics were closely relative to weld porosity. A volume characteristic coefficient, Φ was then proposed by pool profiles to predict the percent porosity of hybrid welds. The higher the Φ, the easier the bubble escaping away the pool, and the lower the weld percent porosity. When the Φ was larger than 0.52, the weld percent porosity was less than 0.5%, which is the criterion of first grade weld. |
| doi_str_mv | 10.1016/j.jmatprotec.2016.10.001 |
| format | Article |
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The percent porosity was examined by X-ray non-destructive testing. The pool shapes were characterized by weld transverse and longitudinal profiles, which were observed by optical and scanning electron microscopes with elemental tracer technique, respectively. Under optimized welding parameters, the weld porosity could be reduced to less than 0.5%. It was found that the pool shape characteristics were closely relative to weld porosity. A volume characteristic coefficient, Φ was then proposed by pool profiles to predict the percent porosity of hybrid welds. The higher the Φ, the easier the bubble escaping away the pool, and the lower the weld percent porosity. When the Φ was larger than 0.52, the weld percent porosity was less than 0.5%, which is the criterion of first grade weld.</description><identifier>ISSN: 0924-0136</identifier><identifier>EISSN: 1873-4774</identifier><identifier>DOI: 10.1016/j.jmatprotec.2016.10.001</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Aluminum alloy ; Aluminum base alloys ; Arc welding ; Bubbles ; Destructive testing ; Laser arc hybrid welding ; Laser beam welding ; Lasers ; Melt pool ; Microscopes ; Nondestructive testing ; Porosity ; Scanning electron microscopy ; Welding ; Welding parameters</subject><ispartof>Journal of materials processing technology, 2017-02, Vol.240, p.217-222</ispartof><rights>2016 Elsevier B.V.</rights><rights>Copyright Elsevier BV Feb 2017</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c412t-19d72b7a916070cdf3066ccad807424f2dd7d365e78176f703708c7bdf6380473</citedby><cites>FETCH-LOGICAL-c412t-19d72b7a916070cdf3066ccad807424f2dd7d365e78176f703708c7bdf6380473</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0924013616303491$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids></links><search><creatorcontrib>Zhang, Chen</creatorcontrib><creatorcontrib>Gao, Ming</creatorcontrib><creatorcontrib>Wang, Dengzhi</creatorcontrib><creatorcontrib>Yin, Jie</creatorcontrib><creatorcontrib>Zeng, Xiaoyan</creatorcontrib><title>Relationship between pool characteristic and weld porosity in laser arc hybrid welding of AA6082 aluminum alloy</title><title>Journal of materials processing technology</title><description>Effects of welding parameters on the porosity of laser arc hybrid welded AA6082 aluminum alloy were investigated. The percent porosity was examined by X-ray non-destructive testing. The pool shapes were characterized by weld transverse and longitudinal profiles, which were observed by optical and scanning electron microscopes with elemental tracer technique, respectively. Under optimized welding parameters, the weld porosity could be reduced to less than 0.5%. It was found that the pool shape characteristics were closely relative to weld porosity. A volume characteristic coefficient, Φ was then proposed by pool profiles to predict the percent porosity of hybrid welds. The higher the Φ, the easier the bubble escaping away the pool, and the lower the weld percent porosity. When the Φ was larger than 0.52, the weld percent porosity was less than 0.5%, which is the criterion of first grade weld.</description><subject>Aluminum alloy</subject><subject>Aluminum base alloys</subject><subject>Arc welding</subject><subject>Bubbles</subject><subject>Destructive testing</subject><subject>Laser arc hybrid welding</subject><subject>Laser beam welding</subject><subject>Lasers</subject><subject>Melt pool</subject><subject>Microscopes</subject><subject>Nondestructive testing</subject><subject>Porosity</subject><subject>Scanning electron microscopy</subject><subject>Welding</subject><subject>Welding parameters</subject><issn>0924-0136</issn><issn>1873-4774</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNqFkE9LAzEQxYMoWKvfIeB518numqTHWvwHgiB6Dmkya7NsNzXJWvrtTVnBo6cZ5r2Z4f0IoQxKBozfdGW31WkXfEJTVnmSxyUAOyEzJkVdNEI0p2QGi6opgNX8nFzE2GWDAClnxL9hr5PzQ9y4HV1j2iMOdOd9T81GB20SBheTM1QPlu6xt1kMPrp0oG6gvY4YqA6Gbg7r4CaHGz6pb-lyyUFWVPfj1g3jNje9P1ySs1b3Ea9-65x8PNy_r56Kl9fH59XypTANq1LBFlZUa6EXjIMAY9saODdGWwmiqZq2slbYmt-ikEzwVkCd4xixti2vJTSinpPr6W4m8zViTKrzYxjyS8UWtWhAsAqyS04ukyPFgK3aBbfV4aAYqCNe1ak_vOqI96hkenn1blrFnOLbYVDROBwMWhfQJGW9-__ID3A6iRk</recordid><startdate>201702</startdate><enddate>201702</enddate><creator>Zhang, Chen</creator><creator>Gao, Ming</creator><creator>Wang, Dengzhi</creator><creator>Yin, Jie</creator><creator>Zeng, Xiaoyan</creator><general>Elsevier B.V</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>H8D</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>201702</creationdate><title>Relationship between pool characteristic and weld porosity in laser arc hybrid welding of AA6082 aluminum alloy</title><author>Zhang, Chen ; Gao, Ming ; Wang, Dengzhi ; Yin, Jie ; Zeng, Xiaoyan</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c412t-19d72b7a916070cdf3066ccad807424f2dd7d365e78176f703708c7bdf6380473</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Aluminum alloy</topic><topic>Aluminum base alloys</topic><topic>Arc welding</topic><topic>Bubbles</topic><topic>Destructive testing</topic><topic>Laser arc hybrid welding</topic><topic>Laser beam welding</topic><topic>Lasers</topic><topic>Melt pool</topic><topic>Microscopes</topic><topic>Nondestructive testing</topic><topic>Porosity</topic><topic>Scanning electron microscopy</topic><topic>Welding</topic><topic>Welding parameters</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhang, Chen</creatorcontrib><creatorcontrib>Gao, Ming</creatorcontrib><creatorcontrib>Wang, Dengzhi</creatorcontrib><creatorcontrib>Yin, Jie</creatorcontrib><creatorcontrib>Zeng, Xiaoyan</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of materials processing technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zhang, Chen</au><au>Gao, Ming</au><au>Wang, Dengzhi</au><au>Yin, Jie</au><au>Zeng, Xiaoyan</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Relationship between pool characteristic and weld porosity in laser arc hybrid welding of AA6082 aluminum alloy</atitle><jtitle>Journal of materials processing technology</jtitle><date>2017-02</date><risdate>2017</risdate><volume>240</volume><spage>217</spage><epage>222</epage><pages>217-222</pages><issn>0924-0136</issn><eissn>1873-4774</eissn><abstract>Effects of welding parameters on the porosity of laser arc hybrid welded AA6082 aluminum alloy were investigated. The percent porosity was examined by X-ray non-destructive testing. The pool shapes were characterized by weld transverse and longitudinal profiles, which were observed by optical and scanning electron microscopes with elemental tracer technique, respectively. Under optimized welding parameters, the weld porosity could be reduced to less than 0.5%. It was found that the pool shape characteristics were closely relative to weld porosity. A volume characteristic coefficient, Φ was then proposed by pool profiles to predict the percent porosity of hybrid welds. The higher the Φ, the easier the bubble escaping away the pool, and the lower the weld percent porosity. When the Φ was larger than 0.52, the weld percent porosity was less than 0.5%, which is the criterion of first grade weld.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.jmatprotec.2016.10.001</doi><tpages>6</tpages></addata></record> |
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| ispartof | Journal of materials processing technology, 2017-02, Vol.240, p.217-222 |
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| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | Aluminum alloy Aluminum base alloys Arc welding Bubbles Destructive testing Laser arc hybrid welding Laser beam welding Lasers Melt pool Microscopes Nondestructive testing Porosity Scanning electron microscopy Welding Welding parameters |
| title | Relationship between pool characteristic and weld porosity in laser arc hybrid welding of AA6082 aluminum alloy |
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