Veeraswamy Amarnath, Palaniswamy Karuppusamy, C. Rajendran
{"title":"钨气弧焊电解韧距铜接头的拉伸和显微组织行为","authors":"Veeraswamy Amarnath, Palaniswamy Karuppusamy, C. Rajendran","doi":"10.1680/jemmr.23.00012","DOIUrl":null,"url":null,"abstract":"Electrolytic Tough Pitch (ETP) copper is extensively used in the manufacturing of electrical machines and automobiles. Compared to other pure coppers, ETP copper has lower weldability. Therefore, this study analyzes the weldability of ETP copper using the Gas Tungsten Arc Welding (GTAW) process. GTAW can be performed using Constant Current (CC) and Pulsed Current (PC) modes. Consequently, the properties of the joints fabricated using both modes are compared and analyzed in this study. The results show that the joint efficiencies of GTAW-CC and GTAW-PC joints are 81% and 89%, respectively. The optimal heat input and pulsating action in pulsed current mode produce refined grains in the weld zone and heat-affected zone, resulting in higher joint efficiency.","PeriodicalId":11537,"journal":{"name":"Emerging Materials Research","volume":" ","pages":""},"PeriodicalIF":1.3000,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Tensile and microstructural behavior of gas tungsten arc welded electrolytic tough pitch copper joints\",\"authors\":\"Veeraswamy Amarnath, Palaniswamy Karuppusamy, C. Rajendran\",\"doi\":\"10.1680/jemmr.23.00012\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Electrolytic Tough Pitch (ETP) copper is extensively used in the manufacturing of electrical machines and automobiles. Compared to other pure coppers, ETP copper has lower weldability. Therefore, this study analyzes the weldability of ETP copper using the Gas Tungsten Arc Welding (GTAW) process. GTAW can be performed using Constant Current (CC) and Pulsed Current (PC) modes. Consequently, the properties of the joints fabricated using both modes are compared and analyzed in this study. The results show that the joint efficiencies of GTAW-CC and GTAW-PC joints are 81% and 89%, respectively. The optimal heat input and pulsating action in pulsed current mode produce refined grains in the weld zone and heat-affected zone, resulting in higher joint efficiency.\",\"PeriodicalId\":11537,\"journal\":{\"name\":\"Emerging Materials Research\",\"volume\":\" \",\"pages\":\"\"},\"PeriodicalIF\":1.3000,\"publicationDate\":\"2023-09-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Emerging Materials Research\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://doi.org/10.1680/jemmr.23.00012\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"MATERIALS SCIENCE, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Emerging Materials Research","FirstCategoryId":"88","ListUrlMain":"https://doi.org/10.1680/jemmr.23.00012","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
Tensile and microstructural behavior of gas tungsten arc welded electrolytic tough pitch copper joints
Electrolytic Tough Pitch (ETP) copper is extensively used in the manufacturing of electrical machines and automobiles. Compared to other pure coppers, ETP copper has lower weldability. Therefore, this study analyzes the weldability of ETP copper using the Gas Tungsten Arc Welding (GTAW) process. GTAW can be performed using Constant Current (CC) and Pulsed Current (PC) modes. Consequently, the properties of the joints fabricated using both modes are compared and analyzed in this study. The results show that the joint efficiencies of GTAW-CC and GTAW-PC joints are 81% and 89%, respectively. The optimal heat input and pulsating action in pulsed current mode produce refined grains in the weld zone and heat-affected zone, resulting in higher joint efficiency.
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Materials Research is constantly evolving and correlations between process, structure, properties and performance which are application specific require expert understanding at the macro-, micro- and nano-scale. The ability to intelligently manipulate material properties and tailor them for desired applications is of constant interest and challenge within universities, national labs and industry.
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