活性剂对激光-电弧复合焊接的影响
Effect of activating flux on laser arc hybrid welded stainless steel
-
摘要: 提出了激光-电弧复合活性焊接法,以提高小功率激光-电弧复合焊接的熔深.在待焊不锈钢表面涂覆一层活性剂,然后进行激光-电弧复合焊接.研究了工艺参数对焊缝成形性的影响,并对焊接接头的组织性能进行了分析.结果表明,涂覆活性剂后可以使复合焊接的熔深增加,并且可以细化复合焊焊缝组织.复合焊接头与复合活性焊接头的显微硬度变化规律一致.复合活性焊接头的抗拉强度较高,达到母材抗拉强度的92%.复合活性焊接头的腐蚀速率低于复合焊接头的腐蚀速率,具有良好的耐蚀性能.Abstract: Activating flux was used in laser arc hybrid welding to improve the penetration. A thin layer of activating flux was brushed on the surface of base metal to be welded, then laser arc hybrid welding was employed to cover the layer. The influence of welding parameters on the weld formation, microstructure and properties were studied. The results show that the penetration of laser arc hybrid welding was increased and its width was reduced by activating flux. Finer microstructure can be acquired in the activating laser arc hybrid welded joints. The trend of micro-hardness distribution was basically the same whether the workpiece was brushed activating flux or not. The tensile strength of activating laser arc hybrid welded joint reached 92% of base metal, and the toughness of welded joint was good. The corrosive speed of activating laser arc hybrid welded joint was lower than that in laser arc hybrid welded joint without activating flux.
-
Keywords:
- activating flux /
- hybrid welding /
- microstructure /
- property
-
-
期刊类型引用(7)
1. 于江，杜荣茂，范彦龙，葛福琛，余果，张洪涛，杨涛. 冷喷涂Cu涂层辅助铝/钢异种金属电阻热扩散连接工艺分析. 焊接学报. 2024(12): 36-44 . 
本站查看
2. 肖勇，程钊，周建军，张建，罗丹，李明雨. 铝合金表面电弧喷涂Ag基涂层及其低温钎焊行为. 焊接学报. 2022(12): 27-34+114 . 本站查看
3. 徐杰，王田. 焊接电流对镁合金/不锈钢电阻点焊接头的影响. 热加工工艺. 2019(01): 214-216 . 百度学术
4. 李文亚，曹聪聪，杨夏炜，徐雅欣. 冷喷涂复合加工制造技术及其应用. 材料工程. 2019(11): 53-63 . 百度学术
5. 张梦清，乔玉林，张仲，张伟，于鹤龙. 铜合金表面冷喷涂纯Cu/Cu基复合涂层的结构与性能. 科技经济导刊. 2019(31): 34+36 . 百度学术
6. 汤贵庭. 镁/钢异种金属电阻点焊工艺研究. 热加工工艺. 2018(15): 225-228 . 百度学术
7. 贾林，栗卓新，李红，Wolfgang Tillmann. 中间层对可伐合金4J29/钼组玻璃DM308激光焊接接头结合性能的影响. 焊接学报. 2018(11): 33-38+130 . 本站查看
其他类型引用(7)
计量
- 文章访问数: 218
- HTML全文浏览量: 11
- PDF下载量: 86
- 被引次数: 14
下载:
