不同过渡层配方下烧结胎体及金刚石锯片激光焊接组织和性能研究  

Investigation on microstructure and performance of sintered matrix and diamond saw blades welded by laser under different transition layer component

作　　者：舒晨 徐强[2,3] 刘一波[2,3] 杨志威[3] 寇生中[1] 曹睿[1] SHU Chen;XU Qiang;LIU Yibo;YANG Zhiwei;KOU Shengzhong;CAO Rui(School of Material Science and Engineering,Lanzhou University of Technology,Lanzhou 730050,China;Central Iron&Research Institute Group,Beijing 100081,China;Beijing Gangyan Diamond Products Company,Beijing 102200,China)

机构地区：[1]兰州理工大学材料科学与工程学院,兰州730050 [2]钢铁研究总院,北京100081 [3]北京安泰钢研超硬材料制品有限责任公司,北京102200

出　　处：《粉末冶金技术》2025年第2期199-205,214,共8页Powder Metallurgy Technology

摘　　要：为研究过渡层对激光焊接金刚石锯片性能和组织的影响,采用三种过渡层配方,制备了烧结胎体和金刚石锯片,并对激光焊接烧结胎体及金刚石锯片的性能进行了测试和组织分析。结果显示,金属基过渡层材料对焊接接头的质量和性能具有重大影响。Co基烧结胎体具有较高的硬度(HRB 97)和抗弯强度(1383.5 MPa)。Cu基烧结胎体表现出较高的相对密度(93.7%)以及均匀的微观组织。Fe基过渡层金刚石锯片在扳齿强度(1986.6 MPa)和焊缝质量方面表现最佳,Co基次之。Cu基过渡层微观组织更加均匀、细腻,且孔隙明显减少。To study the effect of transition layer on the performance and microstructure of laser welded diamond saw blades,the sintered matrix and diamond saw blades were prepared by using three kinds of transition layers,and the performance of the sintered matrix and diamond saw blades welded by laser were tested and analyzed in this paper.The results show that,the metal based transition layer materials have the great influence on the quality and properties of the welded joint.The Co-based sintered matrix has the high hardness(HRB 97)and bending strength(1383.5 MPa).The Cu-based sintered matrix shows the high relative density(93.7%)and uniform microstructure.Fe-based transition layer diamond saw blades have the best performance in tooth strength(1986.6 MPa)and weld quality,followed by Co-based diamond saw blades.The microstructure of Cu-based transition layer is more uniform and fine,and the porosity is significantly reduced.

关 键 词：金刚石锯片 过渡层 激光焊接 显微组织 抗弯强度 扳齿强度 

分 类 号：TF124[冶金工程—粉末冶金] TG42[冶金工程—冶金物理化学]