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激光固态相变与激光熔凝

Φ720mm. 激光固态相变与激光熔凝. 展板二. 采用功率密度为 10 4 ~10 5 W/cm 2 的激光束,在金属表面扫描: 将表层迅速加热到奥氏体转变温度以上,熔点以下,通过工件自身导 热,快速冷却实现细小马氏体的转变 —— 激光固态相变硬化(激光 淬火)。 将表层迅速加热到熔化,随后快速冷却凝固,得到细微的组织 —— 激 光快速熔凝。. 特点

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激光固态相变与激光熔凝

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  1. Φ720mm 激光固态相变与激光熔凝 展板二 • 采用功率密度为104~105 W/cm2的激光束,在金属表面扫描: • 将表层迅速加热到奥氏体转变温度以上,熔点以下,通过工件自身导 • 热,快速冷却实现细小马氏体的转变——激光固态相变硬化(激光 • 淬火)。 • 将表层迅速加热到熔化,随后快速冷却凝固,得到细微的组织——激 • 光快速熔凝。 特点 加热和冷却的速度极快,组织大大细化均匀,硬度比传统热处理高,可大幅度提高工件的耐磨性、疲劳强度、耐腐蚀能力。 过程精确可控,适于对工件局部进行处理,无污染,工件变形很小,处理后只需少量磨削加工或可不加工。 应用范围 适用于灰铸铁、球墨铸铁、中碳钢、中碳合金钢、工具钢、模具钢、马氏体不锈钢等制作的各种零件的局部硬化处理。如曲轴、齿轮、气缸套、活塞环槽、冲盘、模具等表面硬化。 齿轮齿面激光淬火 制药机械零部件激光熔凝强化(替代进口) 长2.5米,直径50~60mm细长空心轴表面激光淬火,挠曲变形仅0.06~0.15mm 挤管模具内表面激光熔凝强化 曲轴激光淬火 联系方式: 地址:天津市塘沽区新港三号路4号 邮编:300456 天津修船技术研究所 激光加工研究室 Tel:022-25795642 Fax:022-25794559 E-mail:6313laser@sina.com

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