激光加工在木材加工中的应用越来越广泛,具有传统机械加工不可比拟的优势。影响激光切割木材效率的因素主要有切割机参数和工件的性质,由于木材的性质很复杂,并且激光切割时的镜头高、功率、切割速度等参数具有交互作用,造成三因素同时作用的显著性不明显,使激光切割木材的效率不易控制。为获得更理想的切割效率,对激光切割木材的工艺参数进行了试验研究。为了减少各种因素交互作用的影响,细化加工参数,分析镜头高和功率二因素对切割缝深的影响程度,以樟子松为例,采用二因素完全随机重复试验方法,在切割速度一定的条件下(v=100 mm/s),确定镜头高和功率对缝深的影响。通过方差分析以及多重比较分析,确定合理的参数为功率41.6 W、镜头高6 mm,或者功率65 W、镜头高6.5 mm。在此条件下可得最大切割缝深为4.5～6 mm。
Abstract
With the incomparable advantages to traditional machining, laser processing is more and more widely used in wood processing industry. The factors affecting the efficiency of laser cutting wood mainly include the parameters of laser cutting machine and the properties of the workpiece. However, because the nature of the wood is very complex. Lens height, laser power and cutting speed and other parameters of laser cutting have interaction effect, the significance of single factor is not very obvious, and the efficiency of laser cutting wood is not easy to control. In this paper, the process parameters of laser cutting wood were experimentally studied to obtain better cutting efficiency. In order to reduce the influence of the interaction of various factors, and to optimize the processing parameters, we focused on the impact of lens height and laser power factors on the cutting seam depth. In the case of Pinus sylvestris wood, we used two factors completely randomized and other repeated test methods. We determined the influence and its degree of lens height and laser power on seam depth, under the condition of constant speed(v=100 mm/s). By variance analysis and multiple comparison analysis of the test data, the influence curve graph was drawn. The results showed the optimal parameters are laser power 41.6 W, lens height 6 mm; or laser power 65 W, lens height 6.5 mm; cutting depth can reach 4.5-6 mm.
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参考文献
[1] 王瀛生, 林裕仁, 李銘鍾. 雷射雕刻技術應用於台灣地區自產材操作條件之試驗[J]. 臺灣林業科學, 2003, 18:401-408.
Wang Y S,Lin Y R, Li M Z. Laser engraving technology experiment in timber-producing conditions in Taiwan area[J].Taiwan Forestry Science, 2003,18:401-408.
[2] Li J L, Mazumder J. A study of the meehanism of laser cutting wood[J]. Forest Products Journal, 1991,41(10): 53-59.
[3] 朴永守. 木材特种切削加工[M]. 哈尔滨:东北林业大学出版社, 1990.
[4] 程伟, 朱典想, 梁萍. 木材加工技术的新发展[J]. 木工机床, 2005(3): 11-14. Doi:10.3969/j.issn.1005-1937.2005.03.004.
Cheng W, Zhu D X, Liang P. New development of wood processing technologies [J]. Woodworking Machine,2005(3):11-14.
[5] Hon K K B, Gill T J. Selective laser sintering of SiC/polyamide composites[J]. CIRP Annals-Manufacturing Technology, 2003, 52(1): 173-176. Doi:10.1016/s0007-8506(07)60558-7.
[6] 刘守典. 切割木材和人造板的激光设备[J]. 国外林业, 1989(4): 35-37.
[7] 章新泰. 激光切割木材实验研究[J]. 激光杂志, 1984, 5(1): 22-26.
Zhang X T. Experimental study of laser cutting wood[J].Laser Magazine, 1984,5(1):22-26.
[8] 曹平祥. 木材激光切割及影响因素[J]. 木工机床, 1995(3): 1-7,10.
[9] 赵静, 钱桦, 张厚江, 等. 激光雕刻木材工艺参数的研究[J]. 木材加工机械, 2006, 17(6): 15-17. Doi:10.3969/j.issn.1001-036X.2006.06.005.
Zhao J, Qian H, Zhang H J, et al. Study on the technical paramers for laser carving wood[J]. Wood Processing Machinery, 2006,17(6):15-17.
[10] 马启升. 激光切削木材中的气流参数——喷嘴设计[J]. 木材加工机械, 1992, 3(2): 22-24.
Ma Q S. The airflow parameter in laser cutting wood—nozzle design[J]. Wood Processing Machinery, 19923,3(2): 22-24.
[11] Li J L, Mazumder J. A study of the meehanism of laser cutting wood[J]. Forest Products Journal, 1991,41(10):53-59.
[12] 赵洪刚, 乐磊, 刘明利, 等. 拼花实木复合地板激光切割制备工艺研究[J]. 北京林业大学学报, 2016, 38(6): 110-115. Doi:10.13332/j.1000-1522.20150380.
Zhao H G, Le L, Liu M L, et al. Research on laser cutting preparation technology of solid wood parquet laminate flooring[J].Journal of Beijing Forestry University, 2016,38(6):110-115.
[13] 袁志发,周静芋.试验设计与分析[M].北京:高等教育出版社,2001.
[14] Usenlus A. Laser applied in wood proeessing[J]. Forest Products Laboratory,1988(10):56-57.
[15] 孙玲芳, 严椿绶. 激光技术在木材切割中的应用[J]. 林业机械与木工设备, 2000, 28(5): 11-15. Doi:10.3969/j.issn.2095-2953.2000.05.004.
Sun L F, Yan C H. Application of laser technology in wood cutting[J]. Machinery for Forestry and Woodworking Equipment, 2000,28(5):11-15.
[16] Naderi N, Legacéy S, Chin S L. Preliminary investigations of ultrafast intense laser wood processing[J]. Forest Products Journal, 1999(6): 72-76.
[17] Zhao H, Wu J, Liu Y, et al. Determination of main laser processing technical parameters in wood manufacturing[C]// International Conference on Advances in Mechanical Engineering and Industrial Informatics. 2016.
基金
基金项目:吉林省科技厅重点科技攻关项目(20150204038NY, 2015020313NY); 国家自然科学基金项目(31470022); 北华大学省级科研平台项目; 吉林省木质材料科学与工程重点实验室开放基金资助项目
第一作者:赵洪刚(mailzhaoyang163@aliyun.com),副教授,博士,在站博士后。
*通信作者:吴俊华(54086442@qq.com),讲师,博士。
引文格式:赵洪刚,刘彦龙,孙耀星,等. 激光切割工艺参数对切割樟子松切缝效率的影响[J]. 南京林业大学学报(自然科学版),2016,40(6):203-206.
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