侯红玲,解玉坤,赵晋平.激光切割铝合金吸收率试验研究[J].表面技术,2016,45(10):193-198.
HOU Hong-ling,XIE Yu-kun,ZHAO Jin-ping.Experimental Research on Absorptivity of Aluminum Alloy Cut by Laser[J].Surface Technology,2016,45(10):193-198
激光切割铝合金吸收率试验研究
Experimental Research on Absorptivity of Aluminum Alloy Cut by Laser
投稿时间:2016-03-26  修订日期:2016-10-20
DOI:10.16490/j.cnki.issn.1001-3660.2016.10.030
中文关键词:  吸收率  表面工艺  激光  切割质量  2A12 铝合金  高反射率
英文关键词:absorptivity  surface process  laser  cutting quality  2A12 Al-alloy  high reflectivity
基金项目:2014 年度陕西省科技厅科研计划基金项目(2014JM7268); 2014 年陕西省教育厅科学研究计划项目(14JK1147);2015 陕西理工学院研究生基金项目(SLGYCX1532)
作者单位
侯红玲 陕西理工学院,陕西 汉中 723003 
解玉坤 陕西理工学院,陕西 汉中 723003 
赵晋平 陕西理工学院,陕西 汉中 723003 
AuthorInstitution
HOU Hong-ling Shaanxi University of Technology, Hanzhong 723003, China 
XIE Yu-kun Shaanxi University of Technology, Hanzhong 723003, China 
ZHAO Jin-ping Shaanxi University of Technology, Hanzhong 723003, China 
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中文摘要:
      目的 提高高反射率材料铝合金对激光的吸收率。方法 基于热平衡原理,搭建了一种激光吸收率测试试验台,并对1.2 mm 厚2A12 硬铝合金试样表面采用了无光漆、炭素墨汁、普通墨汁、石墨等4 种不同的表面涂层处理方法,用CO2 脉冲激光发射器进行了定点照射测试,通过K 型热电偶测得铝合金试样的温度变化,间接获得了其吸收率的大小。结果 试验数据表明,在一定工艺参数下,随着激光功率或扫描时间的增加,所有试样的表面温度整体均呈上升趋势。在四种不同的表面处理方法中,无光漆处理后的铝合金试样吸收率最高,吸收率比原始表面提高了40%,并将这一结论用于工程实践加工,加工后的试样切割面光滑,刮渣尺寸小,表面质量高。结论 该吸收率测试装置及表面处理方法,可成功地改善材料对激光的吸收率。
英文摘要:
      The work aims to improve the absorptivity of the high reflectivity material aluminum alloy by laser cutting. Based on the principle of thermal equilibrium, a test stand for laser absorptivity was set up. Such four different coating treatment methods as lusterless paint, carbolic ink, common ink and graphite were applied on the surface of 1.2 mm thick 2A12 aluminum alloy samples. CO2 pulse laser emitter was used for the test of fixed point irradiation. The temperature change of aluminum alloy samples was measured with K-type thermocouple, based on which the amount of its absorptivity was indirectly obtained. Test data showed that under certain technological parameters, with the increase of laser power or scanning time, the surface temperature of all samples was integrally increased. Among the four different surface treatment methods, the absorptivity of the aluminum alloy treated with lusterless paint was the highest, which was increased by 40% compared with the original surface. After this conclusion was applied to engineering practice, the test-piece cutting surface was smooth after machining. The slag size was small and the surface quality was high. In conclusion, this absorptivity tester and surface treatment method can successfully im prove the absorptivity of the material to the laser.
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