文献类型：期刊文献

中文题名：激光熔覆铁基TiC复合涂层成形质量的控制方法

英文题名：Forming quality control method of laser cladding Fe-based TiC composite coating

作者：吴腾[1];师文庆[1];谢林圯[1];龚美美[1];黄江[1];谢玉萍[1];何宽芳[2]

机构：[1]广东海洋大学电子与信息工程学院,湛江524088;[2]佛山科学技术学院机电工程与自动化学院,佛山528225

年份：2022

卷号：46

期号：3

起止页码：344

中文期刊名：激光技术

外文期刊名：Laser Technology

收录：CSTPCD、、北大核心、CSCD、北大核心2020、CSCD_E2021_2022

基金：国家自然科学基金资助项目(62073089);广东省普通高校重点领域专项基金资助项目(2020ZDZX2061);广东海洋大学研究生教育创新计划资助项目(040502112103)。

语种：中文

中文关键词：激光技术;响应面法;成形质量;工艺参数优化;稀释率

外文关键词：laser technique;response surface method;forming quality;optimization of process parameters;dilution rate

中文摘要：为了揭示激光熔覆工艺参数对铁基TiC复合熔覆层成形质量的作用规律、优化激光熔覆工艺参数,使用YAG固体激光器在60Si2Mn基体上激光熔覆铁基TiC复合涂层,基于响应面法建立输出电流、脉冲宽度、扫描速率与熔覆层宽度、高度、熔池深度、宽高比、稀释率以及硬度之间的数学模型,并对模型进行方差分析,获得了工艺参数与成形质量之间的函数关系。结果表明,输出电流和脉冲宽度对涂层宽度具有正相关性,扫描速率与涂层宽度成反比;扫描速率对熔覆层高度和熔池深度没有显著性影响;涂层宽度与高度的比值随着输出电流的增大而增大;输出电流对涂层稀释率影响最为显著,脉冲宽度次之;较高的输出电流和较大的扫描速率能够得到高硬度涂层;经优化验证模型的误差均小于5%。该研究结果能够用于铁基陶瓷复合涂层成形质量的预测及优化激光工艺参数。

外文摘要：In order to reveal the effect of laser cladding process parameters on the forming quality of Fe based TiC composite cladding layer and optimize the laser cladding process parameters,a YAG solid-state laser was used to achieve laser cladding Fe-based TiC composite coating on 60Si2Mn substrate,and a mathematical model was established to study the influence of output current,pulse width,and scanning speed on cladding width,height,molten pool depth,aspect ratio,dilution rate,and hardness based on response surface method.Then the mathematical model was analyzed by variance analysis.And the functional relationship between process parameters and molding quality was obtained.The results show that the output current and pulse width have a positive correlation with the coating width,and the scanning speed is inversely proportional to the coating width;The scanning speed has no significant effect on the height of cladding layer and the depth of molten pool;The ratio of coating width to coating height increases with the increase of output current;The output current has the most significant effect on the coating dilution ratio,followed by the pulse width;High hardness can be obtained with higher output current and scanning speed;The error of the optimized model is less than 5%.The results can be used to predict the forming quality of Fe based ceramic composite coating and optimize the laser processing parameters.