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介绍利用横流ＣＯ２激光器，对ＫＡ系列转子轴颈的激光熔凝强化应用研究。用扫描电镜分析了硬化层及过渡层的组织形貌，用显微硬度计进行横截面的硬度测量，用磨擦磨损实验机对不同扫描间距试样进行了耐磨性测试，结果表明：在相同工艺参数下，扫描间距１２ｍｍ的试样相对耐磨
This paper introduces the application of cross flow CO2 laser to the laser fusion strengthening of KA series rotor journals. Scanning electron microscopy (SEM) was used to analyze the microstructure of the hardened layer and the transition layer. The cross-section hardness of the hardened layer and the transition layer was measured with a microhardness tester. The wear resistance of the samples with different scanning pitches was tested by a friction and wear testing machine. Under the process parameters, the sample with a scanning pitch of 12mm is relatively wear-resistant