摘要
针对传统面齿轮加工方式的局限性,本文提出了基于飞秒激光精修面齿轮的新型加工方式。采用飞秒激光对面齿轮进行单因素实验和正交实验,结果表明,在激光功率、重复频率、扫描速度、扫描道间距和离焦量等因素中,激光功率对扫描道烧蚀深度和齿面粗糙度的影响最大,扫描道间距的影响最小。利用回归模型预测扫描道烧蚀深度和齿面粗糙度,并利用仿真模型预测扫描道烧蚀深度,将两种模型的预测结果与参数优化后的激光实验结果进行对比,结果发现最大相对误差均在合理范围内。本文研究结果可为飞秒激光精微烧蚀面齿轮提供理论指导。
Objective Face gears have complex tooth profiles,are difficult to manufacture,demand a high level of technical expertise,and traditional machining accuracy cannot meet production requirements.Therefore,femtosecond laser fine correction face gear was proposed as a new processing technology.In this study,we investigated the multifactor optimization of laser and correction parameters during the femtosecond laser ablation of face gear and presented theoretical guidance for the production field.Methods FemtoYL-100 all-fiber laser produced an 828 fs femtosecond laser to ablate 18 Cr2 Ni4 WA,a three-dimensional digital video microscope observed the depth of ablation pits,and Hommel profiler-Hommel T8000 detected tooth surface roughness.First,a single-factor femtosecond laser right-angle S-type scanning was performed to machine the face gear material,and the influence degree and trend of laser correction parameters on the scanning track ablation depth and tooth surface roughness were obtained by combining the theoretical and experimental results.Based on the results,we analyzed and selected the value range of each factor and designed a factor-level table.According to the facto-level table,we performed multiple orthogonal experiments and tested the results of scanning track ablation depth and tooth surface roughness.The results were extremely poor.Furthermore,in the analysis of variance,after combining the two methods,the optimal laser parameters and combination of correction parameters were selected.A regression analysis model was established using the results of orthogonal experiments,and the power function was selected as the criterion model for modeling.After substituting the optimized parameter combination,the prediction results of the scanning track ablation depth and tooth surface roughness were obtained.A simulation model based on the ablation threshold and energy accumulation was established,and the predicted value of the scanning track ablation depth was obtained using MATLAB to solve the problem.Using optimized
作者
明兴祖
樊滨瑞
李楚莹
袁磊
吴陶
明瑞
Ming Xingzu;Fan Binrui;Li Chuying;Yuan Lei;Wu Tao;Ming Rui(School of Mechanical Engineering,Hunan University of Technology,Zhuzhou 412007,Hunan,China)
出处
《中国激光》
EI
CAS
CSCD
北大核心
2022年第16期107-119,共13页
Chinese Journal of Lasers
基金
国家自然科学基金(51975192)
湖南省自然科学基金(2021JJ30214,2021JJ50042)
“机电汽车”湖北省优势特色学科群开放基金(XKQ2021044)。
关键词
激光技术
飞秒激光
工艺参数
正交实验
回归模型
仿真分析
齿面形貌
laser technique
femtosecond laser
process parameters
orthogonal experiment
regression model
simulation analysis
tooth surface profile
