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45钢光纤激光熔凝工艺

屈岳波, 周健, 赵琳, 张瑞华, 张岩, 田志凌

屈岳波, 周健, 赵琳, 张瑞华, 张岩, 田志凌. 45钢光纤激光熔凝工艺[J]. 焊接学报, 2015, 36(7): 59-62.
引用本文: 屈岳波, 周健, 赵琳, 张瑞华, 张岩, 田志凌. 45钢光纤激光熔凝工艺[J]. 焊接学报, 2015, 36(7): 59-62.
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QU Yuebo, ZHOU Jian, ZHAO Lin, ZHANG Ruihua, ZHANG Yan, TIAN Zhiling. Fiber laser remelting technology of 45 steel[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2015, 36(7): 59-62.
Citation: QU Yuebo, ZHOU Jian, ZHAO Lin, ZHANG Ruihua, ZHANG Yan, TIAN Zhiling. Fiber laser remelting technology of 45 steel[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2015, 36(7): 59-62.
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45钢光纤激光熔凝工艺

  • 1.

    中国钢研科技集团有限公司 新冶高科技集团有限公司, 北京 100081;中国钢研科技集团有限公司, 北京 100081

  • 2.

    中国钢研科技集团有限公司 新冶高科技集团有限公司, 北京 100081

  • 3.

    中国钢研科技集团有限公司, 北京 100081

基金项目: 中国博士后科学基金资助项目(2013M540899)

Fiber laser remelting technology of 45 steel

  • 1.

    New Metallurgy Hi-tech Group Co., Ltd., China Iron & Steel Research Institute Group, Beijing 100081, China;China Iron & Steel Research Institute Group, Beijing 100081, China

  • 2.

    New Metallurgy Hi-tech Group Co., Ltd., China Iron & Steel Research Institute Group, Beijing 100081, China

  • 3.

    China Iron & Steel Research Institute Group, Beijing 100081, China

摘要

    摘要
  • 摘要: 采用光纤激光对45钢表面进行了激光熔凝处理研究. 结合熔凝层深度、组织、显微硬度和摩擦磨损性能分析,研究了多道激光熔凝的激光功率、激光扫描间距对熔凝工艺的影响规律. 结果表明,在改变激光功率的研究中,熔凝层深度随激光功率的增大而增加,熔凝层的显微硬度呈周期性变化,后道激光处理对前道熔凝层存在回火热处理作用. 在改变激光扫描间距的研究中,进一步验证了后道激光熔凝对前道的热影响作用,同时适当增大扫描间距,获得软硬相间的熔凝层表面,有利于改善钢材表面的耐磨性能,同时可适当提高激光熔凝处理的生产效率.
    Abstract: 45 steel surface was treated by fiber laser remelting. The effect of laser power and scanning intervals on the remelted layer was investigated, and the depth, microstructure, microhardness and wear resistance of the remelted layer were analyzed. The result indicates that the depth of remelted layer increses as the laser power increses. The microhardness distribution of the remelted layer changes periodically owing to the temper sofetning effect by the later laser. The softening effect of the later laser has been further studied by changing the scanning intervals. With appropriately increasing the scanning intervals, the remelted layer alternates between soft and harden, which improves the wear resistance and production efficiency.
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    • 参考文献(9)
  • [1] 张光钧. 激光表面工程的进展及应用[J].热处理, 2012, 27(3): 5-9. Zhang Guangjun. Development and application of laser surface engineering[J]. Heat Treatment, 2012, 27(3): 5-9.
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  • 收稿日期:  2013-12-18

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