LASER WELDING METHOD, LASER WELDING DEVICE, AND WELDED MEMBER
[OBJECT] To provide a laser welding method, a laser welding device, and a welded member that are able to suppress the occurrence of blow holes and obtain a favorable weld. [MEANS OF ACHIEVING THE OBJECT] A laser welding method for welding a plurality of metal members to each other by irradiating las...
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| creator | KAGIYA, KAZUHIKO KINOSHITA, KEISUKE NONAKA, SHINTARO HASUNUMA, MITSUHIRO |
| description | [OBJECT] To provide a laser welding method, a laser welding device, and a welded member that are able to suppress the occurrence of blow holes and obtain a favorable weld. [MEANS OF ACHIEVING THE OBJECT] A laser welding method for welding a plurality of metal members to each other by irradiating laser light 51 in a region where a plurality of metal member are superposed, comprising a pretreatment process and a welding process. At least one metal member of the plurality of metal members is formed from a metal-plated steel plate in which a base metal has been covered with a coating material that has a melting point lower than the base metal. In the pretreatment process, with the position of the first metal member 21 (one of the metal members) in the in-plane direction fixed, processing is performed from the front surface 21a (one side surface) of the first metal member to form on the back surface 21 b (other side surface), which is the other side, a protrusion 23 that bulges from the back surface. Then, in the welding process, the first metal member in which a protrusion has been formed is superposed on a second metal member 22 (another metal member) with the protrusion therebetween while maintaining the position in the in-plane direction, and laser light is irradiated on the superposed region to weld the plurality of metal members to each other. |
| format | Patent |
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[MEANS OF ACHIEVING THE OBJECT] A laser welding method for welding a plurality of metal members to each other by irradiating laser light 51 in a region where a plurality of metal member are superposed, comprising a pretreatment process and a welding process. At least one metal member of the plurality of metal members is formed from a metal-plated steel plate in which a base metal has been covered with a coating material that has a melting point lower than the base metal. In the pretreatment process, with the position of the first metal member 21 (one of the metal members) in the in-plane direction fixed, processing is performed from the front surface 21a (one side surface) of the first metal member to form on the back surface 21 b (other side surface), which is the other side, a protrusion 23 that bulges from the back surface. Then, in the welding process, the first metal member in which a protrusion has been formed is superposed on a second metal member 22 (another metal member) with the protrusion therebetween while maintaining the position in the in-plane direction, and laser light is irradiated on the superposed region to weld the plurality of metal members to each other.</description><language>eng ; fre ; ger</language><subject>CLADDING OR PLATING BY SOLDERING OR WELDING ; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING ; MACHINE TOOLS ; METAL-WORKING NOT OTHERWISE PROVIDED FOR ; PERFORMING OPERATIONS ; SOLDERING OR UNSOLDERING ; TRANSPORTING ; WELDING ; WORKING BY LASER BEAM</subject><creationdate>2016</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20160406&DB=EPODOC&CC=EP&NR=2957379A4$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25562,76317</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20160406&DB=EPODOC&CC=EP&NR=2957379A4$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KAGIYA, KAZUHIKO</creatorcontrib><creatorcontrib>KINOSHITA, KEISUKE</creatorcontrib><creatorcontrib>NONAKA, SHINTARO</creatorcontrib><creatorcontrib>HASUNUMA, MITSUHIRO</creatorcontrib><title>LASER WELDING METHOD, LASER WELDING DEVICE, AND WELDED MEMBER</title><description>[OBJECT] To provide a laser welding method, a laser welding device, and a welded member that are able to suppress the occurrence of blow holes and obtain a favorable weld. [MEANS OF ACHIEVING THE OBJECT] A laser welding method for welding a plurality of metal members to each other by irradiating laser light 51 in a region where a plurality of metal member are superposed, comprising a pretreatment process and a welding process. At least one metal member of the plurality of metal members is formed from a metal-plated steel plate in which a base metal has been covered with a coating material that has a melting point lower than the base metal. In the pretreatment process, with the position of the first metal member 21 (one of the metal members) in the in-plane direction fixed, processing is performed from the front surface 21a (one side surface) of the first metal member to form on the back surface 21 b (other side surface), which is the other side, a protrusion 23 that bulges from the back surface. Then, in the welding process, the first metal member in which a protrusion has been formed is superposed on a second metal member 22 (another metal member) with the protrusion therebetween while maintaining the position in the in-plane direction, and laser light is irradiated on the superposed region to weld the plurality of metal members to each other.</description><subject>CLADDING OR PLATING BY SOLDERING OR WELDING</subject><subject>CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING</subject><subject>MACHINE TOOLS</subject><subject>METAL-WORKING NOT OTHERWISE PROVIDED FOR</subject><subject>PERFORMING OPERATIONS</subject><subject>SOLDERING OR UNSOLDERING</subject><subject>TRANSPORTING</subject><subject>WELDING</subject><subject>WORKING BY LASER BEAM</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2016</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZLD1cQx2DVIId_Vx8fRzV_B1DfHwd9FRQBV1cQ3zdHbVUXD0cwGLuboAFfo6uQbxMLCmJeYUp_JCaW4GBTfXEGcP3dSC_PjU4oLE5NS81JJ41wAjS1NzY3NLRxNjIpQAAJvzKPE</recordid><startdate>20160406</startdate><enddate>20160406</enddate><creator>KAGIYA, KAZUHIKO</creator><creator>KINOSHITA, KEISUKE</creator><creator>NONAKA, SHINTARO</creator><creator>HASUNUMA, MITSUHIRO</creator><scope>EVB</scope></search><sort><creationdate>20160406</creationdate><title>LASER WELDING METHOD, LASER WELDING DEVICE, AND WELDED MEMBER</title><author>KAGIYA, KAZUHIKO ; KINOSHITA, KEISUKE ; NONAKA, SHINTARO ; HASUNUMA, MITSUHIRO</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP2957379A43</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>2016</creationdate><topic>CLADDING OR PLATING BY SOLDERING OR WELDING</topic><topic>CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING</topic><topic>MACHINE TOOLS</topic><topic>METAL-WORKING NOT OTHERWISE PROVIDED FOR</topic><topic>PERFORMING OPERATIONS</topic><topic>SOLDERING OR UNSOLDERING</topic><topic>TRANSPORTING</topic><topic>WELDING</topic><topic>WORKING BY LASER BEAM</topic><toplevel>online_resources</toplevel><creatorcontrib>KAGIYA, KAZUHIKO</creatorcontrib><creatorcontrib>KINOSHITA, KEISUKE</creatorcontrib><creatorcontrib>NONAKA, SHINTARO</creatorcontrib><creatorcontrib>HASUNUMA, MITSUHIRO</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>KAGIYA, KAZUHIKO</au><au>KINOSHITA, KEISUKE</au><au>NONAKA, SHINTARO</au><au>HASUNUMA, MITSUHIRO</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>LASER WELDING METHOD, LASER WELDING DEVICE, AND WELDED MEMBER</title><date>2016-04-06</date><risdate>2016</risdate><abstract>[OBJECT] To provide a laser welding method, a laser welding device, and a welded member that are able to suppress the occurrence of blow holes and obtain a favorable weld. [MEANS OF ACHIEVING THE OBJECT] A laser welding method for welding a plurality of metal members to each other by irradiating laser light 51 in a region where a plurality of metal member are superposed, comprising a pretreatment process and a welding process. At least one metal member of the plurality of metal members is formed from a metal-plated steel plate in which a base metal has been covered with a coating material that has a melting point lower than the base metal. In the pretreatment process, with the position of the first metal member 21 (one of the metal members) in the in-plane direction fixed, processing is performed from the front surface 21a (one side surface) of the first metal member to form on the back surface 21 b (other side surface), which is the other side, a protrusion 23 that bulges from the back surface. Then, in the welding process, the first metal member in which a protrusion has been formed is superposed on a second metal member 22 (another metal member) with the protrusion therebetween while maintaining the position in the in-plane direction, and laser light is irradiated on the superposed region to weld the plurality of metal members to each other.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng ; fre ; ger |
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| subjects | CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM |
| title | LASER WELDING METHOD, LASER WELDING DEVICE, AND WELDED MEMBER |
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