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在浮动油封环表面以振镜扫描方式快速熔覆Ni60合金涂层,在充入氮气保护及维持激光的功率不变的情况下,通过改变扫描间距和成型层数进行振镜快速扫描熔覆实验。试验表明,采用140W激光功率,100mm/s扫描速度,0.08mm扫描间距,可直接在油封环上进行多层熔覆,熔覆层金相组织细小且无裂纹,工件熔覆表层较未熔覆前硬度显著提高。
In the floating oil seal ring surface galvanometer scanning rapid cladding Ni60 alloy coating, filled with nitrogen to protect and maintain the power of the laser case, by changing the scanning pitch and forming the layer count galvanometer rapid scanning experiment . Experiments show that the use of 140W laser power, 100mm / s scanning speed, 0.08mm scanning spacing can be directly in the oil seal ring multi-layer cladding, the cladding microstructure is small and no cracks, the workpiece cladding surface than the cladding Before the hardness increased significantly.