激光标刻ABS共聚物表面能量密度参数探究  

Study on Surface Energy Density Parameters of ABS by Laser Marking

作　　者：邓凯 蔡颂[1,2] 熊显文 王遥遥[1] 陈达 宋金潮 汤迎红 DENG Kai;CAI Song;XIONG Xianwen;WANG Yaoyao;CHEN Da;SONG Jinchao;TANG Yinghong(School of Mechanical Engineering,Hunan University of Technology,Zhuzhou 412007,China;School of Mechanical Science&Engineering of HUST,Wuhan 430074,China)

机构地区：[1]湖南工业大学机械工程学院,湖南株洲412007 [2]华中科技大学机械科学与工程学院,湖北武汉430074

出　　处：《塑料工业》2023年第5期54-61,共8页China Plastics Industry

基　　金：国家自然科学基金(51705141);湖南省教育厅科学研究优秀青年项目(21B0523);湖北省高等教育学会专项课题基于MOOC理念机械类应用型人才培养的《先进制造技术》课程教学改革研究基金资助项目(2021ZD54);湖北省高等学校优秀中青年科技创新团队资助项目(T2020042)。

摘　　要：本文采用光纤激光打标机对丙烯腈/丁二烯/苯乙烯共聚物(ABS)材料进行了表面标刻实验。实验发现激光平均功率为20 W,激光扫描速率低于6 mm/s时ABS材料由于导热系数较低散热能力差会引起材料表面燃烧。当输入的激光能量密度低于471.9 J/cm^(2)时,材料表面会附着大量炭黑颗粒影响其粗糙度,而输入的激光能量密度高于734.7 J/cm^(2)时,材料内部达到玻璃化转变温度而软化,表面发生热膨胀凸起,标刻质量被严重损坏。研究表明,标刻激光能量密度应控制在471.9~734.7 J/cm^(2)之间,其中标刻的最佳激光能量密度约为506.4 J/cm^(2)。The experiments on the fiber laser marking the surface of the acrylonitrile/butadiene/styrene copolymer(ABS)materials were carried out.It is found when the average laser power is 20 W and the laser scanning velocity is lower than 6 mm/s,the surface of the ABS material is burned due to its low thermal conductivity and poor heat dissipation capacity.When the input laser energy density is lower than 471.9 J/cm^(2),a large number of carbon black particles are attached to the surface of the material,affecting the surface roughness.However,when the input laser energy density is higher than 734.7 J/cm^(2),the internal material reaches the glass transition temperature resulting in softening,the surface is raised by the thermal expansion,and the marking quality is seriously damaged.The research shows that the laser energy density for marking should be controlled between 471.9 J/cm^(2)and 734.7 J/cm^(2),and the optimal laser energy density for marking is approximately 506.4 J/cm^(2).

关 键 词：光纤激光 激光标刻 高分子塑料 表面技术 

分 类 号：TQ325[化学工程—合成树脂塑料工业]