激光切割木材试验及其加工质量的影响因素分析  

Laser Cutting Wood Test and Influencing Factors of Processing Quality

作　　者：姜新波[1] 李晋哲[1] 白岩[1] 吴哲[1] 杨春梅[1] 马岩[1] 

机构地区：[1]东北林业大学林业与木工机械工程技术中心,黑龙江哈尔滨150040

出　　处：《激光与光电子学进展》2016年第3期128-132,共5页Laser & Optoelectronics Progress

基　　金：中央高校基本科研业务费专项资金(2572015DB02);国家自然科学基金(31200434)

摘　　要：采用固体脉冲激光器,研究了激光能量、进给速度及切缝深度对厚度为2 mm的核桃楸、柞木、水曲柳及黄波罗板材的切缝加工质量的影响。试验结果表明,当脉冲激光频率为20 Hz,激光能量为300 m J,切缝长度为12 mm时,核桃楸切缝表面加工质量最好。在激光能量为116 m J时,柞木的切缝表面加工质量最好。试验证明,对于同种木材,在激光能量增大时切缝表面熔渣减少,光滑程度提高,加工质量相应提高。激光能量和切割深度不变时,木材气干密度增大,切割的进给速度随之减小,切缝表面加工质量提高。A solid pulse laser laboratory bench is used to study the impact of laser energy, feed rate and kerf depth on slit surface processing quality of Juglans maUdshurica, Quercus mongolica, Fraxinus mandshurica and PheUodendron amurense with thickness of 2 mm. The results show that with pulsed laser frequency of 20 Hz, laser energy of 300 mJ and kerf length of 12 mm, the kerf surface quality of Juglans maUdshurica is the best. When the laser energy is 116 m J, the kerf surface quality of Quercus mongolica is the best. The tests prove that for the same kind of wood, the increase of laser energy can reduce the molten slag on the kerf surface and improve both of the smoothness and the kerf surface quality. When the laser energy and the depth of kerf are constant, the feed rate is reduced and the processing quality of kerf surface is improved as the air-dry density increases.

关 键 词：激光光学 木材 激光切割 加工质量 脉冲激光器 

分 类 号：TN249[电子电信—物理电子学]