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激光器在金属表面标刻的控制参数多,参数对图像质量影响大。采用脉冲光纤激光在铝锭(牌号Al99.70)表面标刻二维码图像,建立了工艺参数与图像灰度值之间的优化计算模型;分析了激光加工相关参数的交互作用,对工艺参数进行了简化整合;对简化后的参数进行单因素实验,分析了标刻图像灰度值分布及变化规律并得到合理参数范围;基于单因素实验结论,建立了工艺参数与灰度值之间的多元非线性回归数学模型,利用多因素正交实验数据和免疫克隆算法对模型参数进行了拟合。实验结果证明了模型的有效性,为铝锭表面实现激光二维码标刻技术提供了理论基础。
Laser engraved on the metal surface of the control parameters and more parameters of the image quality impact. The pulsed fiber laser was used to mark the two-dimensional code on the surface of aluminum ingot (Al99.70), and the optimization calculation model was established between the processing parameters and the gray value of the image. The interaction of laser processing parameters was analyzed, The simplification and integration were carried out. The simplified parameters were analyzed by single factor experiment, the distribution and variation of grayscale values were analyzed and the reasonable parameters were obtained. Based on the single factor experimental results, the relationship between process parameters and gray values Multivariate non-linear regression mathematical model, using orthogonal experimental data and immune cloning algorithm to fit the model parameters. The experimental results prove the validity of the model and provide a theoretical basis for the realization of laser two-dimensional code marking technology on the surface of aluminum ingots.