Research on the quality of laser marked data matrix symbols

6th International Conference on Nanomaterials and Materials Engineering

Li, C.L.^1

College of Mechanical and Automotive Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong

250353, China^1

关键词: Alloy substrates;    Contrast changes;    Data matrix symbols;    Linear regression models;    Mathematics model;    Orthogonal experiment;    Quality assessment;    Substrate material;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/380/1/012023/pdf
DOI  :  10.1088/1757-899X/380/1/012023

来源: IOP

【 摘 要 】

To evaluate the quality of the laser direct part marked Data Matrix symbols on titanium alloy substrates, the quality assessment methods at home and abroad were compared. A new quality assessment method of combining the effect of the laser on substrate materials and symbol grade of laser marked Data Matrix was put forward. Depending on previous research works, orthogonal experiment results were analyzed again and a modified nonlinear mathematics model was established. Analysis results indicate that this modified model can explain 90.6% of symbol contrast change and it is statistically significant. So it is better than previous linear regression model and can be used to estimate the quality of laser marked Data Matrix symbols on titanium alloy substrates. The nonlinear mathematics model can also explain the laser parameters influence on the symbol contrast.