冷轧带钢激光焊接接头断带分析及改善措施

陈广兴; 吴荣华; 万照堂; 罗世明; 郑浩

doi:10.7512/j.issn.1001-2303.2024.12.16

焊接工艺 | 浏览量 : 0 下载量: 5 CSCD: 0

PDF
导出
分享
收藏
专辑

冷轧带钢激光焊接接头断带分析及改善措施
Analysis and Improvement Measures for Strip Breakage in Laser Welding Joint of Cold-Rolled Strip Steel
2024年54卷第12期页码：101-106
纸质出版日期： 2024-12-25 ，
DOI： 10.7512/j.issn.1001-2303.2024.12.16
稿件说明：

移动端阅览

陈广兴，吴荣华，万照堂，等.冷轧带钢激光焊接接头断带分析及改善措施［J］.电焊机，2024，54（12）：101-106.

CHEN Guangxing, WU Ronghua, WAN Zhaotang, et al.Analysis and Improvement Measures for Strip Breakage in Laser Welding Joint of Cold-Rolled Strip Steel[J].Electric Welding Machine, 2024, 54(12): 101-106.
陈广兴，吴荣华，万照堂，等.冷轧带钢激光焊接接头断带分析及改善措施［J］.电焊机，2024，54（12）：101-106. DOI： 10.7512/j.issn.1001-2303.2024.12.16.

CHEN Guangxing, WU Ronghua, WAN Zhaotang, et al.Analysis and Improvement Measures for Strip Breakage in Laser Welding Joint of Cold-Rolled Strip Steel[J].Electric Welding Machine, 2024, 54(12): 101-106. DOI： 10.7512/j.issn.1001-2303.2024.12.16.

摘要

利用光学显微镜和扫描电镜分析了冷轧带钢焊缝断带的原因，并开展焊接试验以及结合硬度和折弯性能检测进行验证，结果表明：焊缝两侧焊接热影响区晶粒尺寸存在明显差异，其中晶粒粗大的一侧热影响区力学性能恶化是导致冷轧带钢焊缝断带的直接原因。焊接热影响区的晶粒尺寸受冷轧带钢变形纤维组织尺寸的影响，而纤维组织尺寸由热卷的组织决定。当焊缝两侧的母材纤维组织尺寸相同时，其焊接接头中焊缝两侧的焊接热影响区晶粒尺寸无明显差异，此时，焊接接头的硬度分布得到明显改善，且其折弯性能提升了一倍、经折弯26次后仍未开裂。可通过细化带钢热卷的组织尺寸和降低激光焊接的热输入等方式提升焊接接头的力学性能，以减轻薄弱环节的不利影响。

Abstract

The causes of welding joint breakage in cold-rolled strip steel were analyzed by means of optical microscopy and scanning electron microscopy

and then welding tests and hardness and bending performance testing of welding joints for verification were carried out. The results show that a significant difference in the grain size of the heat affected zone on both sides of the welded joint

and the deterioration of the mechanical properties of the heat affected zone on the side with coarse grains is the direct reason for the fracture of the cold rolled strip weld.The size of the heat affected zone of the welded joint is influenced by the size of the deformed fiber microstructure of the cold-rolled strip steel which is determined by the size of microstructure of the hot coil.When the fiber microstructure size of the base material on both sides of the weld seam is the same

there is no significant difference in the grain size of the welding heat affected zone on both sides of the weld seam in the welded joint

which hardness distribution has significantly improved

and the bending performance has been improved at least twice with which still does not crack after 26 bends.The mechanical properties of welded joints can be improved by refining the hot coil microstructures and reducing laser welding heat input

thereby weakening the adverse effects of weak links.

关键词

冷轧带钢激光焊接断带热影响区晶粒尺寸

Keywords

cold-rolled strip steellaser weldingstrip breakageheat affected zonegrain size

references

梁亚，张冲冲，孙冰. 深冲钢酸轧断带的原因分析和改进措施［J］. 金属世界，2023（04）：52-57.

LIANG Y，ZHANG C C，SUN B. Cause Analysis and Improvement Measures of Acid Rolling Strip in Deep Drawing Steel［J］. Metal World，2023（04）：52-57.

刘成荣. 减少低碳钢极薄带材冷轧断带事故的方法［J］. 现代制造技术与装备，2022，58（05）：172-174.

LIU C R. Method to Reduce the Accident of Cold Rolling Strip Breaking of Low Carbon Steel［J］. Modern Manufacturing Technology and Equipment，2022，58（05）：172-174.

王畅，于洋，王林，等. 含磷高强IF钢拉矫断带的原因及机制［J］. 钢铁，2014，49（05）：81-87.

WANG C，YU Y，WANG L，et al. Based on the morphology observation of fracture and precipitate of high strengt［J］. Iron & Steel. 2014，49（05）：81-87.

赵丽明，谷国刚，谷国华. 碳素结构钢冷轧断带原因分析［J］. 四川冶金，2017，39（01）：28-30.

ZHAO L M，GU G G，GU G H. The Analysis of the Causes of Carbon Structural Steel Cold Rolled Strip Break［J］. Sichuan Metallurgy，2017，39（01）：28-30.

孙帅，查凯. 冷轧连续退火炉内带钢焊缝开裂成因与预防措施［J］. 山东冶金，2023，45（01）：24-25+29.

SUN S，ZHA K. Cause Analysis and Preventive Measures of Weldseam Breakagein Cold Rolling Continuous Annealing Furnace［J］.Shandong Metallurgy，2023，45（01）：24-25+29.

安亮，薛仁杰. 1000 MPa级超高强钢焊缝断带分析［J］. 河南冶金，2019，27（03）：26-28+32.

AN L，Xue R J. Analysis of welding broken strip of ultra-high strength steel at 1000 MPa level［J］. Henan Metallurgy，2019，27（03）：26-28+32.

岑耀东，陈芙蓉. 带钢连续热镀锌窄搭接焊机的故障分析及对策［J］. 电焊机，2015，45（09）：76-79.

CEN Y D，CHEN F R. Failure analysis and strategy of the strip continuous hot dip galvanized mash lap seam welder［J］.Electric Welding Machine，2015，45（09）：76-79.

刘浩东，戴京涛. 激光焊接技术的应用研究进展与分析［J］.电焊机，2022，52（01）：95-102.

LIU H D，DAI J T. Research Review and Analysis of Laser Welding Application［J］. Electric Welding Machine，2022，52（01）：95-102.

孟云飞，叶兵，赵东，等.430铁素体不锈钢钢带光纤激光焊接工艺研究［J］. 应用激光，2017，37（01）：79-84.

MENG Y F，YE B，ZHAO D，et al. Research on Fiber Laser Welding of 430 Ferritic Stainless Steel Band［J］.Applied Laser，2017，37（01）：79-84.

童炀，张婧，辛文彬，等. Nb含量对V-Ti-N工程结构用钢连续冷却转变规律及组织性能的影响［J］.金属热处理，2024，49（03）：236-244.

TONG Y，ZHANG J，XIN W B，et al. Effect of Nb content on continuous cooling transformation rulemicrostructure and properties of V-Ti-N structural steel［J］. Heat Treatment of Metals，2024，49（03）：236-244.

陈元园，冯庆，张乐，等. 焊后热处理对TA2钛板氩弧焊接头显微组织和性能的影响［J］. 金属热处理，2023，48（11）：221-225.

CHEN Y Y，FENG Q，ZHANG L，et al. Effect of post weld heat treatment on microstructure and properties of TA2 titanium plate argon arc welded joint［J］.Heat Treatment of Metals，2023，48（11）：221-225

何超，崔仕明，罗泽富，等. 力学不均匀性对焊接接头拉伸性能的影响［J］. 四川大学学报（工程科学版），2013，45（S1）：38-42.

HE C，CUI S M，LUO Z F，et al. Research on Tensile Properties of Welded Joint with Mechanical Heterogeneity［J］. Journal of Sichuan University（Engineering Science Edition），2013，45（S1）：38-42.

吴林恩，刘宇，夏培培，等. 热输入对X80级气保护药芯焊丝焊缝金属组织性能的影响［J］. 电焊机，2023，53（10）：90-96+114.

WU L E，LIU Y，XIA P P，et al. Effect of Heat Input on Microstructure and Properties of X80 grade FCAW-G Welding Metal［J］. Electric Welding Machine，2023，53（10）：90-96+114.

文章被引用时，请邮件提醒。

提交

热处理对异种不锈钢激光焊接头组织和腐蚀性能的影响

高强铝合金焊接对板材性能的影响

430铁素体不锈钢薄板激光焊接背面飞溅和熔池动态的数值模拟

激光焊接过程多尺度数值模拟研究现状与展望

窄间隙激光焊接研究现状与存在的问题