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Effects of laser parameters on the width of color change area of poplar wood surface during a single irradiation
European Journal of Wood and Wood Products ( IF 2.6 ) Pub Date : 2021-05-04 , DOI: 10.1007/s00107-021-01706-1
Rongrong Li , Chujun He , Yingjing Chen , Xiaodong Wang

Due to the high efficiency, flexible moving trajectory and good controllability, laser surface treatment is a modification method used for wood materials, which could be applied to change the wood properties of color, wettability, surface roughness, etc. These surface properties directly affect the wood products coating performance, such as coating adhesion and surface gloss. To reveal the width of the heat-affected zone under laser treatment with different laser parameter combinations, the width of color change area (WCCA) during a single irradiation was measured. The laser power, feed speed and focus plane position were chosen as input parameters. The response surface methodology was selected to arrange the experiments, analyze the influences of laser parameters on WCCA and establish a relationship between laser parameters and WCCA. The results showed that the laser power and focus plane position had significant influences on WCCA. The values of WCCA increased with increased laser power and focus plane position within certain limit. The quadratic model for establishing the relationship between laser parameters and WCCA was significant. The value of correlation coefficient (R2) is very close to 1, which means that the model could give an accurate prediction of WCCA under variable modification parameter combinations.



中文翻译:

单次照射过程中激光参数对杨木表面变色区宽度的影响

由于高效率,灵活的运动轨迹和良好的可控制性,激光表面处理是一种用于木材的改性方法,可用于改变木材的颜色,润湿性,表面粗糙度等特性。这些表面特性直接影响木材的表面处理。木制品的涂层性能,如涂层的附着力和表面光泽度。为了揭示采用不同激光参数组合进行激光处理后的热影响区的宽度,在单次照射期间测量了变色区(WCCA)的宽度。选择激光功率,进给速度和聚焦平面位置作为输入参数。选择响应面方法来安排实验,分析激光参数对WCCA的影响,并建立激光参数与WCCA之间的关系。结果表明,激光功率和焦平面位置对WCCA有显着影响。WCCA的值在一定范围内随激光功率和焦平面位置的增加而增加。建立激光参数与WCCA之间关系的二次模型具有重要意义。相关系数的值(R2)非常接近1,这意味着该模型可以在变量修改参数组合下给出WCCA的准确预测。

更新日期:2021-05-05
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