空军工程大学学报2024，Vol.25Issue(3)：22-27,6.DOI:10.3969/j.issn.2097-1915.2024.03.004
不可展曲面功能结构激光刻蚀实验研究
Experimental Study of Laser Etching of Non-Developable Surface Functional Structures
汪建 1姜开宇 1秦傲 1梁化斌 1赵骥2
作者信息
- 1. 大连理工大学机械工程学院,大连,116024
- 2. 微刻(北京)科技有限公司,北京,100089
- 折叠
摘要
Abstract
Functional structures are widely used in the field of aerospace and satellite communication,the machining of large curvature non-developable surface electromagnetic functional structures is still a very important subject.In this paper,the laser control software and the guide rail motion control software are integrated and developed,and the method of zoned machining is combined to achieve laser etching of the e-lectromagnetic functional structure of the spherical shell non-developable surface.The 304 stainless steel hemispherical surface with a diameter of 100 mm is divided into two areas.In the two areas,3 D projection and rotary processing are adopted respectively to better ensure the processing quality of the unit structure.3 D projection is applied to the area with angle β<45° of the cutting plane,which can form the laser machi-ning track at one time,omits the multiple motions of layered machining,greatly improves the unit machi-ning efficiency and ensures the machining accuracy.In the β>45° region,the sample rotation mode is used to adjust the position of the laser beam and the spherical element to be machined synchronously,so as to ensure that the laser beam and the spherical element to be machined coincide with the normal direction,re-duce the laser incidence angle,and effectively improve the accuracy of the machining unit.Two quantiza-tion parameters,removal rate and root-mean-square difference of sample points,were selected to evaluate the machining quality.The results showed that the removal rate was basically in the range of 1.00～1.03,and the root-mean-square difference of sample points was basically kept in the range of 10～35 μm,and the overall machining effect was remarkable.关键词
不可展曲面/激光标刻/功能性结构/分区加工Key words
non-developable surface/laser marking/functional structures/partitioning分类
通用工业技术引用本文复制引用
汪建,姜开宇,秦傲,梁化斌,赵骥..不可展曲面功能结构激光刻蚀实验研究[J].空军工程大学学报,2024,25(3):22-27,6.
