{"title":"Numerical Simulation in High-speed Spot Welding","authors":"S. Yamane, H. Kinoshita","doi":"10.2207/JJWS.90.199","DOIUrl":"https://doi.org/10.2207/JJWS.90.199","url":null,"abstract":"","PeriodicalId":39980,"journal":{"name":"Yosetsu Gakkai Ronbunshu/Quarterly Journal of the Japan Welding Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68676930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"WAAM/EBAM, Wire Feeding Type of Additive Manufacturing Technology and Industrial Adaption","authors":"M. Kidera","doi":"10.2207/JJWS.90.23","DOIUrl":"https://doi.org/10.2207/JJWS.90.23","url":null,"abstract":"","PeriodicalId":39980,"journal":{"name":"Yosetsu Gakkai Ronbunshu/Quarterly Journal of the Japan Welding Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68677334","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Development of Numerical Model for Visualization of Submerged Arc Welding Phenomena","authors":"Hisaya Komen","doi":"10.2207/JJWS.90.266","DOIUrl":"https://doi.org/10.2207/JJWS.90.266","url":null,"abstract":"","PeriodicalId":39980,"journal":{"name":"Yosetsu Gakkai Ronbunshu/Quarterly Journal of the Japan Welding Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68677619","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. Shobako, Osamu Hamano, Tomohiko Yamashita, Takeshi Soum, N. Terajima
area AC-GTA stability decreases in the less pressure. In conclusion, the AC-GTA welding in the Mars atmosphere can be applicable by considering the ambient pressure and the EP time ratio.
{"title":"Observation of Stability and Cleaning Action in AC-GTA under like Mars atmosphere","authors":"S. Shobako, Osamu Hamano, Tomohiko Yamashita, Takeshi Soum, N. Terajima","doi":"10.2207/qjjws.39.151","DOIUrl":"https://doi.org/10.2207/qjjws.39.151","url":null,"abstract":"area AC-GTA stability decreases in the less pressure. In conclusion, the AC-GTA welding in the Mars atmosphere can be applicable by considering the ambient pressure and the EP time ratio.","PeriodicalId":39980,"journal":{"name":"Yosetsu Gakkai Ronbunshu/Quarterly Journal of the Japan Welding Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67996256","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Atsuhiro Koyama, T. Takase, Yohei Sonobe, M. Akita, T. Kakiuchi, Y. Agata, M. Nakajima, A. Saimoto, Y. Uematsu
******** *** ********* The effect of aging treatment on fatigue behavior of Nb-added ferritic stainless steel type 429 welds in 3% NaCl solution was investigated. Two filler metals with different chemical compositions, Filler I and II, had been used for the MIG butt welding of type 429. After aging treatment at 700 ℃ for 100 hours was applied to the smooth specimens of the welds, the fully reversed axial fatigue tests were performed in 3% NaCl solution. In the case of the welds with Filler I, there was almost no change in corrosion fatigue strength even after aging treatment. On the other hand, in the case of the welds with Filler II, the corrosion fatigue strength decreased after aging treatment. It was concluded that the combination of aging treatment and heat history of welding using Filler II caused the sensitization of the base metal of the welds and increased the sensitivity to the corrosive environment.
{"title":"Effect of aging treatment on fatigue behavior of Nb-added ferritic stainless steel type 429 welds in 3% NaCl solution","authors":"Atsuhiro Koyama, T. Takase, Yohei Sonobe, M. Akita, T. Kakiuchi, Y. Agata, M. Nakajima, A. Saimoto, Y. Uematsu","doi":"10.2207/qjjws.39.158","DOIUrl":"https://doi.org/10.2207/qjjws.39.158","url":null,"abstract":"******** *** ********* The effect of aging treatment on fatigue behavior of Nb-added ferritic stainless steel type 429 welds in 3% NaCl solution was investigated. Two filler metals with different chemical compositions, Filler I and II, had been used for the MIG butt welding of type 429. After aging treatment at 700 ℃ for 100 hours was applied to the smooth specimens of the welds, the fully reversed axial fatigue tests were performed in 3% NaCl solution. In the case of the welds with Filler I, there was almost no change in corrosion fatigue strength even after aging treatment. On the other hand, in the case of the welds with Filler II, the corrosion fatigue strength decreased after aging treatment. It was concluded that the combination of aging treatment and heat history of welding using Filler II caused the sensitization of the base metal of the welds and increased the sensitivity to the corrosive environment.","PeriodicalId":39980,"journal":{"name":"Yosetsu Gakkai Ronbunshu/Quarterly Journal of the Japan Welding Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67996266","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Research for Carbide Composite Laser Cladding on Steam Turbine Blades for Geothermal Power Generation","authors":"Y. Nakashima","doi":"10.2207/JJWS.90.259","DOIUrl":"https://doi.org/10.2207/JJWS.90.259","url":null,"abstract":"","PeriodicalId":39980,"journal":{"name":"Yosetsu Gakkai Ronbunshu/Quarterly Journal of the Japan Welding Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68677386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"My History for Weldin","authors":"Kyohei Maeda","doi":"10.2207/JJWS.90.295","DOIUrl":"https://doi.org/10.2207/JJWS.90.295","url":null,"abstract":"","PeriodicalId":39980,"journal":{"name":"Yosetsu Gakkai Ronbunshu/Quarterly Journal of the Japan Welding Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68677802","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Innovation of Steel Manufacturing Process Using Cyber Physical System","authors":"O. Yamaguchi","doi":"10.2207/JJWS.90.69","DOIUrl":"https://doi.org/10.2207/JJWS.90.69","url":null,"abstract":"","PeriodicalId":39980,"journal":{"name":"Yosetsu Gakkai Ronbunshu/Quarterly Journal of the Japan Welding Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68679952","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Numerical Simulation of Wire+arc Additive Manufacturing Process by GMAW Weld Pool Model","authors":"Y. Ogino","doi":"10.2207/JJWS.90.98","DOIUrl":"https://doi.org/10.2207/JJWS.90.98","url":null,"abstract":"","PeriodicalId":39980,"journal":{"name":"Yosetsu Gakkai Ronbunshu/Quarterly Journal of the Japan Welding Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68680624","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This study tested a two-color temperature measurement method using a multi-spectral camera designed for biomedical use. We selected the images of 735 nm and 930 nm as wavelengths. Two calibrations were performed before using them for temperature conversion. One was sensitivity calibration between wavelengths, which was conducted by heating the steel surface coated with blackbody spray from the opposite surface and comparing it with the temperature measured by thermography. Another calibration was a pixel shift that took into account the array of elements. This is a correction peculiar to a multi-spectral camera, and it was possible to eliminate a steep temperature error at the end of the temperature discontinuity. In this report, the electrode temperature of the gas tungsten arc was reported as an application example.
{"title":"Application of multi-spectral camera for biomedical use to two-color temperature measurement in welding phenomena","authors":"K. Nomura, H. Okuda, T. Sano","doi":"10.2207/qjjws.39.241","DOIUrl":"https://doi.org/10.2207/qjjws.39.241","url":null,"abstract":"This study tested a two-color temperature measurement method using a multi-spectral camera designed for biomedical use. We selected the images of 735 nm and 930 nm as wavelengths. Two calibrations were performed before using them for temperature conversion. One was sensitivity calibration between wavelengths, which was conducted by heating the steel surface coated with blackbody spray from the opposite surface and comparing it with the temperature measured by thermography. Another calibration was a pixel shift that took into account the array of elements. This is a correction peculiar to a multi-spectral camera, and it was possible to eliminate a steep temperature error at the end of the temperature discontinuity. In this report, the electrode temperature of the gas tungsten arc was reported as an application example.","PeriodicalId":39980,"journal":{"name":"Yosetsu Gakkai Ronbunshu/Quarterly Journal of the Japan Welding Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67995927","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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