Development of an auto-welding system for CRD nozzle repair welds using a 3D laser vision sensor
DC Field | Value | Language |
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dc.contributor.author | Park, K. | - |
dc.contributor.author | Kim, Y. | - |
dc.contributor.author | Byeon, Jeong Hoon | - |
dc.contributor.author | Sung, K. | - |
dc.contributor.author | Yeom, Chisun | - |
dc.contributor.author | Rhee, Se Hun | - |
dc.date.accessioned | 2022-12-21T05:50:45Z | - |
dc.date.available | 2022-12-21T05:50:45Z | - |
dc.date.created | 2022-08-26 | - |
dc.date.issued | 2007-10 | - |
dc.identifier.issn | 1738-494X | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/179504 | - |
dc.description.abstract | A control rod device (CRD) nozzle attaches to the hemispherical surface of a reactor head with J-groove welding. Primary water stress corrosion cracking (PWSCQ causes degradation in these welds, which requires that these defect areas be repaired. To perforin this repair welding automatically on a complicated weld groove shape, an auto-welding system was developed incorporating a laser vision sensor that measures the 3-dimensional (3D) shape of the groove and a weld-path creation program that calculates the weld-path parameters. Welding trials with a J-groove workpiece were performed to establish a basis for developing this auto-welding system. Because the reactor head is placed on a lay down support, the outer-most region of the CRD nozzle has restricted access. Due to this tight space, several parameters of the design, such as size, weight and movement of the auto-welding system, had to be carefally considered. The cross section of the J-groove weld is basically an oval shape where the included angle of the J-groove ranges from 0 to 57 degrees. To measure the complex shape, we used double lasers coupled to a single charge coupled device (CCD) camera. We then developed a program to generate the weld-path parameters using the measured 3D shape as a basis. The program has the ability to determine the first and final welding positions and to calculate all weld-path parameters. An optimized image-processing algorithm was applied to resolve noise interference and diffused reflection of the joint surfaces. The auto-welding system is composed of a 4-axis manipulator, gas tungsten arc welding (GTAW) power supply, an optimized designed and manufactured GTAW torch and a 31) laser vision sensor. Through welding trials with 0 and 38-degree included-angle workpieces with both J-groove and U-groove weld, the performance of this auto-welding system was qualified for field application. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | KOREAN SOC MECHANICAL ENGINEERS | - |
dc.title | Development of an auto-welding system for CRD nozzle repair welds using a 3D laser vision sensor | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Rhee, Se Hun | - |
dc.identifier.doi | 10.1007/BF03177400 | - |
dc.identifier.scopusid | 2-s2.0-35348939146 | - |
dc.identifier.wosid | 000250648800046 | - |
dc.identifier.bibliographicCitation | JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY, v.21, no.10, pp.1720 - 1725 | - |
dc.relation.isPartOf | JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY | - |
dc.citation.title | JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY | - |
dc.citation.volume | 21 | - |
dc.citation.number | 10 | - |
dc.citation.startPage | 1720 | - |
dc.citation.endPage | 1725 | - |
dc.type.rims | ART | - |
dc.type.docType | Article; Proceedings Paper | - |
dc.identifier.kciid | ART001192967 | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.description.journalRegisteredClass | kci | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalWebOfScienceCategory | Engineering, Mechanical | - |
dc.subject.keywordAuthor | laser vision sensor | - |
dc.subject.keywordAuthor | Welding path creation | - |
dc.subject.keywordAuthor | CRD nozzle | - |
dc.identifier.url | https://link.springer.com/article/10.1007/BF03177400 | - |
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