激光与光电子学进展, 2016, 53 (6): 061406, 网络出版: 2016-06-06   

316L不锈钢粉末激光熔覆工艺研究 下载: 674次

Study on Laser Cladding Process of 316L Stainless Steel Powder
作者单位
中国科学院宁波材料技术与工程研究所, 浙江 宁波 315201
摘要
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。
Abstract
In order to explore the influence of laser parameters on the cladding quality of 316L stainless steel powder on the 304# stainless steel plate and find out the optimal cladding parameters, a series of laser cladding experiments are carried out with a self-designed and assembled fiber laser cladding system. The surface morphology and cross sectional quality with different combinations of process parameters (laser power, cladding speed, laser frequency, defocusing amount, and so on) are detected and analyzed by means of laser scanning confocal microscope and Vickers hardness tester. The influence law of process parameters on the cladding quality is found and the optimum range of the cladding parameters is determined. The experimental results in this range show that the cladding surface is smooth with holonomic coating lines and without pores and cracks.
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昝少平, 焦俊科, 张文武. 316L不锈钢粉末激光熔覆工艺研究[J]. 激光与光电子学进展, 2016, 53(6): 061406. Zan Shaoping, Jiao Junke, Zhang Wenwu. Study on Laser Cladding Process of 316L Stainless Steel Powder[J]. Laser & Optoelectronics Progress, 2016, 53(6): 061406.

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