激光直接物标标识铝合金(2024)力学性能的研究  

Study on Mechanical Properties of Laser Direct Part Marking Aluminum Alloy (2024)

作　　者：陈保国 杜远超 张玲玲[2,3] 卢鹄 陈洁 陈维 刘哨巡 李强 李国旗 陈媛[2,3] 舒天娇 杨文杰[2] Chen Baoguo;Du Yuanchao;Zhang Lingling;Lu Gao;Chen Jie;Chen Wei;Liu Shaoxun;Li Qiang;Li Guoqi;Chen Yuan;Shu Tianjiao;Yang Wenjie(Shanghai Aircraft Manufacturing Co.,Ltd.,Shanghai 201324,China;Shanghai Institute of Laser Technology,Shanghai 200233,China;Shanghai Laser DPM Traceability Engineering Research Center,Shanghai 200233,China)

机构地区：[1]上海飞机制造有限公司,上海201324 [2]上海市激光技术研究所,上海200233 [3]上海激光直接物标溯源工程技术研究中心,上海200233

出　　处：《应用激光》2021年第4期822-825,共4页Applied Laser

摘　　要：为研究激光直接物标标识技术(laser direct part marking, DPM)对铝合金2024力学性能的影响,对标识后的铝合金2024进行了标识深度测量、显微硬度检测、静力学拉伸和高周疲劳试验。研究结果表明:不同工艺参数下的标识深度相差很大,深度范围5.26~525.7μm;在标识区域会形成重熔区,显微硬度51~62 HV,明显小于材料基体显微硬度值;标识深度会对铝合金2024的抗拉性能和疲劳性能造成影响,在一定标识深度下,标识后的铝合金2024的拉伸性能和疲劳性能满足材料的性能要求。In order to study the effect of laser direct part marking(DPM) on the mechanical properties of aluminum alloy 2024, the marking depth, microhardness, static tensile test and high cycle fatigue test were carried out on the marked aluminum alloy 2024. The results show that the marking depth varies greatly under different process parameters, ranging from 5.26 μm to 525.7 μm;recast zone will be formed in the marking area, and the microhardness is 51-62 HV, which is significantly less than the microhardness value of the material matrix;the marking depth will affect the tensile properties and fatigue properties of aluminum alloy 2024, and the tensile properties of aluminum alloy 2024 after marking at a certain marking depth will be improved The energy and fatigue properties are equivalent to the tensile and fatigue properties of normal materials.

关 键 词：激光直接标识 铝合金2024 拉伸性能 疲劳性能 

分 类 号：TN249[电子电信—物理电子学]