应用激光, 2017, 37 (2): 268, 网络出版: 2017-06-08
水辅助条件下金属表面激光标记二维条码质量检测与工艺优化
Processing Parameters Optimization and Quality Inspection of Water-assisted Laser Marking Two Dimensional Barcodes on Metal Surfaces
摘要
针对在空气环境下金属表面激光标记时, 会出现热影响区较大, 飞溅物易沉积影响加工质量, 同时产生废气和悬浮颗粒, 对环境有污染等问题提出了水辅助条件下进行激光标记二维条码的方法。首先, 从条码质量评定指标的角度, 研究了水层深度对条码图像质量的影响, 然后, 对比分析了在两种环境下的条码图像质量情况。结合微观分析, 证明了水辅助激光标记二维条码的可行性, 并且能够解决空气环境下产生的问题。最后, 通过设计正交试验和方差分析对水辅助条件下激光加工参数与条码评定指标的关系进行了分析, 并进行了参数优化。
Abstract
Some low quality symbols were often produced with large heat affected zone when Laser marked on metal surface in air environment. Also, some fine metal particles may be produced during marking process and causes potential environment pollution. In order to solve these problems, water-assisted laser marking technique was introduced in this paper. Firstly, according to quality index of the ISO/IEC15415 specification, the influence of the water depth on the marking depth of the bar code is studied. Then, the quality of two dimensional barcodes marked in water and air environment was analyzed separately. Combing the microscopic analysis, the feasibility of laser marking two dimensional barcodes in water environment was proved, and can solve the air environment problems. Finally, the laser processing parameters in water environment were optimized by using orthogonal experimental design and variance analysis method.
陶亮, 李建美, 李云龙. 水辅助条件下金属表面激光标记二维条码质量检测与工艺优化[J]. 应用激光, 2017, 37(2): 268. Tao Liang, Li Jianmei, Li Yunlong. Processing Parameters Optimization and Quality Inspection of Water-assisted Laser Marking Two Dimensional Barcodes on Metal Surfaces[J]. APPLIED LASER, 2017, 37(2): 268.