首页|Quality reliability analysis of flash welding joint of cold-rolled 50JW800 silicon steel strip
Quality reliability analysis of flash welding joint of cold-rolled 50JW800 silicon steel strip
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NSTL
Elsevier
? 2022 Elsevier LtdIn this study, the quality reliability of the flash butt welding (FBW) joint of a 50JW800 silicon steel strip is analyzed through metallographic observation, cupping tests, and tensile tests. It is found that the recrystallization in some areas of the joint is insufficient, as is the mechanically forced connection, owing to the plastic deformation and uneven heat distribution of the joint during the process of FBW. Insufficient recrystallization is the root cause of strip breakage during cold rolling. The quality reliability of the 50JW800 silicon steel strip FBW joint is also analyzed using eddy current nondestructive testing technology. It is found that the eddy current testing signal has a good response to different structural characteristics of the joint. Therefore, eddy current test technology can be used to ensure the quality reliability of silicon steel strip FBW joints in actual production.
Cold rolling (C)Eddy current testing (B)Flash welding (B)Quality reliability (C)Silicon steel (A)
Xu Y.、Yang B.、Shi Y.、Feng X.、Li J.、Feng C.、Volodymyr K.
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State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals Lanzhou University of Technology
NSTL
Elsevier
