316L不锈钢粉末激光熔覆工艺研究

来源 :激光与光电子学进展 | 被引量 : 0次 | 上传用户:shengaogao3
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为了探索激光工艺参数对316L不锈钢粉末在304#不锈钢板上熔覆质量的影响规律,发现最优的工艺参数,利用实验室自行设计组装的光纤激光熔覆系统对其进行了一系列的激光熔覆工艺试验。用激光共聚焦显微镜、维氏硬度计以及其他方法,对不同组合的工艺参数(激光功率、熔覆速度、激光频率以及离焦量等)下单道熔覆的试样的表面形貌和横截面质量进行了检测和分析,发现了工艺参数对熔覆质量的影响规律,并据此确定了一个最佳的熔覆参数组合范围,在这个范围内得到的熔覆试样结果显示,熔覆条表面光滑,有完整的熔覆条纹,无气孔和裂纹。 In order to explore the influence of laser process parameters on the quality of 316L stainless steel powder cladding on 304 # stainless steel plate and found the optimal process parameters, using a fiber laser cladding system designed and assembled by the laboratory to carry out a series of laser melting Cover technology test. Using laser confocal microscopy, Vickers hardness tester, and other methods, the surface morphology and cross-section of single-pass cladded samples under different combinations of process parameters (laser power, cladding speed, laser frequency and defocus amount) The quality of the cross section was tested and analyzed, and the rule of the influence of the process parameters on the quality of the cladding was found. Based on it, an optimum range of the cladding parameters was determined. The results of the cladding samples obtained in this range showed that the cladding The surface of the strip is smooth, with complete cladding stripes, no pores and cracks.
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