Influence of shielding gas nozzle design on power density distribution in low-current TIG welding arcs
Shielding gas nozzle diameter variation and its impact on the anodic power distribution of low-current tungsten inert gas arcs were investigated, while maintaining either shielding gas flow rate or flow velocity constant. In addition, the effects of anode surface condition and flow behaviour type (l...
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| Veröffentlicht in: | Welding in the world 2020-05, Vol.64 (5), p.831-845 |
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| creator | Egerland, Stephan Colegrove, Paul Williams, Stewart |
| description | Shielding gas nozzle diameter variation and its impact on the anodic power distribution of low-current tungsten inert gas arcs were investigated, while maintaining either shielding gas flow rate or flow velocity constant. In addition, the effects of anode surface condition and flow behaviour type (laminar or turbulent) caused by the shielding gas nozzle applied were studied. It was found that arcs of 50 amperes (A) welding current were highly unstable deploying the conditions used, while increasing the arc electrical current to 100 A led to improved arc stability. As found in previous investigations, non-Gaussian distribution profiles occurred at 50 A, even with improved shielding. The power density maxima were found shifted away from the arc axis. |
| doi_str_mv | 10.1007/s40194-020-00876-5 |
| format | Article |
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The power density maxima were found shifted away from the arc axis.</description><subject>Anode effect</subject><subject>Chemistry and Materials Science</subject><subject>Current distribution</subject><subject>Density distribution</subject><subject>Electric arcs</subject><subject>Electric power distribution</subject><subject>Flow velocity</subject><subject>Fluid dynamics</subject><subject>Gas flow</subject><subject>Gas tungsten arc welding</subject><subject>Gaussian distribution</subject><subject>Laminar flow</subject><subject>Materials Science</subject><subject>Metallic Materials</subject><subject>Normal distribution</subject><subject>Nozzle design</subject><subject>Plasma</subject><subject>Rare gases</subject><subject>Research Paper</subject><subject>Shielding</subject><subject>Solid Mechanics</subject><subject>Theoretical and Applied Mechanics</subject><subject>Turbulent flow</subject><subject>Welding current</subject><issn>0043-2288</issn><issn>1878-6669</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNp9kE9LAzEQxYMoWKtfwFPAc3Q22SSboxT_FApe6jnsJtk1Zc3WZJfSfnqjLXjzMAwz894b-CF0W8B9ASAfUgmFKglQIACVFISfoVlRyYoIIdQ5mgGUjFBaVZfoKqUNAKhcM9QuQ9tPLhiHhxanD-9660OHuzrhMBwOvcPWJd8FPAS8HXYu5jkkP-6x9WmMvplGn08-4H7YETPF6MKI18sXvDtF1dGka3TR1n1yN6c-R-_PT-vFK1m9vSwXjytimGAjMdSBqahUsmgYBysL3gjHqLCguLLOGkrbtuSCUiYtbUquFOMNE8BNk1dsju6Ouds4fE0ujXozTDHkl5qySknKS1VlFT2qTBxSiq7V2-g_67jXBegfnvrIU2ee-pen5tnEjqaUxaFz8S_6H9c3pN94Yg</recordid><startdate>20200501</startdate><enddate>20200501</enddate><creator>Egerland, Stephan</creator><creator>Colegrove, Paul</creator><creator>Williams, Stewart</creator><general>Springer Berlin Heidelberg</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>20200501</creationdate><title>Influence of shielding gas nozzle design on power density distribution in low-current TIG welding arcs</title><author>Egerland, Stephan ; Colegrove, Paul ; Williams, Stewart</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c363t-c2e0c827971b350d715b6e326d0959dedc22ff4562237d2b459935b3605cb2373</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Anode effect</topic><topic>Chemistry and Materials Science</topic><topic>Current distribution</topic><topic>Density distribution</topic><topic>Electric arcs</topic><topic>Electric power distribution</topic><topic>Flow velocity</topic><topic>Fluid dynamics</topic><topic>Gas flow</topic><topic>Gas tungsten arc welding</topic><topic>Gaussian distribution</topic><topic>Laminar flow</topic><topic>Materials Science</topic><topic>Metallic Materials</topic><topic>Normal distribution</topic><topic>Nozzle design</topic><topic>Plasma</topic><topic>Rare gases</topic><topic>Research Paper</topic><topic>Shielding</topic><topic>Solid Mechanics</topic><topic>Theoretical and Applied Mechanics</topic><topic>Turbulent flow</topic><topic>Welding current</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Egerland, Stephan</creatorcontrib><creatorcontrib>Colegrove, Paul</creatorcontrib><creatorcontrib>Williams, Stewart</creatorcontrib><collection>CrossRef</collection><jtitle>Welding in the world</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Egerland, Stephan</au><au>Colegrove, Paul</au><au>Williams, Stewart</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Influence of shielding gas nozzle design on power density distribution in low-current TIG welding arcs</atitle><jtitle>Welding in the world</jtitle><stitle>Weld World</stitle><date>2020-05-01</date><risdate>2020</risdate><volume>64</volume><issue>5</issue><spage>831</spage><epage>845</epage><pages>831-845</pages><issn>0043-2288</issn><eissn>1878-6669</eissn><abstract>Shielding gas nozzle diameter variation and its impact on the anodic power distribution of low-current tungsten inert gas arcs were investigated, while maintaining either shielding gas flow rate or flow velocity constant. 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| ispartof | Welding in the world, 2020-05, Vol.64 (5), p.831-845 |
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| source | Springer Nature - Complete Springer Journals |
| subjects | Anode effect Chemistry and Materials Science Current distribution Density distribution Electric arcs Electric power distribution Flow velocity Fluid dynamics Gas flow Gas tungsten arc welding Gaussian distribution Laminar flow Materials Science Metallic Materials Normal distribution Nozzle design Plasma Rare gases Research Paper Shielding Solid Mechanics Theoretical and Applied Mechanics Turbulent flow Welding current |
| title | Influence of shielding gas nozzle design on power density distribution in low-current TIG welding arcs |
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