50Mn2V金刚石锯片激光焊接过渡层粉末的研制(下)

Research and development of laser welding transition layer powder used for 50Mn2V diamond saw blade

介绍了自主研发的A激光焊接过渡层粉末的设计性能指标、制备方法和基本参数,测试了A粉末烧结试样块的机械性能,检测了A过渡层、国外某公司过渡层与50M n2V钢基体的激光焊接强度。焊接强度测试结果表明：在780℃-880℃常用烧结温度范围内,A过渡层可以与不同的工作层配合使用,比国外某公司过渡层具有更高的安全性和稳定性,焊接强度达到并超过BS En13236：2001安全标准。A激光焊接过渡层粉末可以替代国外进口的激光焊接过渡层粉末。

Designing performance,manufacture methods and basic parameters of laser welding transition layer powder A are presented in this paper.Mechanical properties of powder A sintered samples,laser welding intensity of transition layer A and transition layer made by a overseas company bonded with 50Mn2V steel substrate are investigated.The results indicate that transition layer A sintered between 780℃ and 880℃ is better than transition layer of certain overseas company in security and stabilization and can be applied for different working layers.Moreover,the welding intensity of transition layer A has met and surpassed the BS En13236：2001 standard on safety.Therefore,the laser welding transition layer powder from the overseas can be replaced by the powder A.