金属加工（热加工）Issue(9)：48-54,62,8.
脉冲激光工艺参数对M170P/DC06差厚拼焊接头组织与性能的影响
Effect of pulse laser process parameters on microstructure and properties of M170P/DC06 differential thickness welded joints
摘要
Abstract
This study investigates the effects of pulse frequency,width,and voltage on the microstructure and mechanical properties of M170P/DC06 steel differential thickness plates welded joints using an SW-500 Nd:YAG pulsed laser.Results indicate that the DC06 steel thin plate HAZ exhibits coarse blocky ferrite,while the M170P steel thick plate HAZ consists of fine ferrite and granular bainite.Optimal hardness(200HV)is achieved at 20Hz pulse frequency and 300 mm/min welding speed,with a gradient decrease from thick to thin plate.关键词
脉冲激光/差厚板/拼焊接头/显微组织Key words
pulse laser/differential thickness plate/welding joints/microstructure引用本文复制引用
吴兴欢,赖春明,李乐攀..脉冲激光工艺参数对M170P/DC06差厚拼焊接头组织与性能的影响[J].金属加工（热加工）,2025,(9):48-54,62,8.基金项目
湖南省教育厅科学研究项目优秀青年项目(23B0966). （23B0966）
