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采用激光熔覆表面改性法，在85钢凸轮轴表面熔覆镍基合金。通过rrrrrrrrn合理增大激光功率密度、减慢激光扫描速度和采用环道连续搭接等方法，rrrrrrrrn可以减少裂纹，防止涂层开裂。
Using laser cladding surface modification method, the 85 steel camshaft surface cladding nickel-based alloy. Through the reasonable increase of laser power density, slowing down the laser scanning speed and the use of lap continuous lap and other methods, r r r r r r r r nCan reduce cracks and prevent coating cracking.