焊管2025，Vol.48Issue(2)：64-68,5.DOI:10.19291/j.cnki.1001-3938.2025.02.010
CT150连续管板材激光焊工艺研究
Research on Laser Welding Process of CT150 Coiled Tubing Plate
杨森 1吴志文 1孙照阳 1余宣洵 1胡学文1
作者信息
- 1. 马鞍山钢铁股份有限公司技术中心,安徽 马鞍山 243000
- 折叠
摘要
Abstract
In order to study the influence of different welding processes on laser welding on CT 150 coilded tubing plate,the welded joint morphology,strength and hardness under different welding process conditions,and the microstructure and properties of the joint under the typical process conditions were comparatively analyzed.The results show that with the increase of welding speed,the strength of welded joint increases first and then decreases,the welding width increases and the hardness decreases.With the increase of welding power,the strength,width and hardness of the joint are increased.With the increase of laser focal length,the strength,width and hardness of the joint are increasing.The research shows that under the typical welding power of 12 kW,welding speed of 4.2 m/min and laser focal length of 2 mm,the tensile strength of the joint reaches 1 074 MPa,the welding width of the front and back of the weld is 0.96 mm and 0.91 mm respectively,and the microhardness value of the weld zone is 420HV1.0～440HV1.0.The hardness of the critical zone is 330HV1.0～341HV1.0 the hardness of the coarse crystal zone is the highest,and the hardness of the critical zone is the lowest.关键词
CT150/连续管/激光焊接/微观组织/力学性能Key words
CT150/coiled tubing/laser welding/microstructure/mechanical properties分类
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杨森,吴志文,孙照阳,余宣洵,胡学文..CT150连续管板材激光焊工艺研究[J].焊管,2025,48(2):64-68,5.
