激光冲击锻造与电弧增材复合修复铝合金件的力学性能  

Mechanical Properties of Laser Shock Forging and Wire Arc Additive Composite Repair Parts of Aluminum Alloy

作　　者：陈志超 张永康 池元清 勾俊峰 林超辉 CHEN Zhichao;ZHANG Yongkang;CHI Yuanqing;GOU Junfeng;LIN Chaohui(Guangdong Provincial Key Laboratory of Advanced Manufacturing Technology of Marine Energy Equipment,School of Electromechanical Engineering,Guangdong University of Technology,Guangzhou 510006,China;School of Intelligent Engineering,Shaoguan University,Shaoguan 512005,China;Guangdong Leiben Laser Technology Co.,Ltd.,Foshan 528200,China)

机构地区：[1]广东工业大学机电工程学院,广东省海洋能源装备先进制造技术重点实验室,广东广州510006 [2]韶关学院智能工程学院,广东韶关512005 [3]广东镭奔激光科技有限公司,广东佛山528200

出　　处：《电加工与模具》2024年第5期48-53,共6页Electromachining & Mould

基　　金：广东省基础与应用基础研究基金项目(2022B1515250004、2023A1515012117)。

摘　　要：为改善铝合金件电弧增材修复后的机械性能,引入激光冲击锻造与电弧增材复合修复工艺并进行修复件拉伸测试。探讨光丝间距、脉冲能量、脉冲频率、电流强度及进给速度等参数对修复件力学性能的影响,对比复合工艺与电弧增材工艺修复件的应力-应变曲线和断裂位置。结果显示,通过优选光丝间距、工作电流和进给速度,提高脉冲能量和频率,最多可使抗拉强度和延伸率分别提高16.4%和1.5倍。复合工艺能强化修复件的熔融区和部分熔融区,从而提高力学性能。To address the issue of reduced mechanical properties after arc additive manufacturing repair of aluminum alloy components,a hybrid repair process combining laser shock forging(LSF)and wire arc additive manufacturing(WAAM)was introduced,and tensile tests were conducted on the repaired parts.The effects of process parameters such as fiber spacing,pulse energy,pulse frequency,current intensity and feed rate on the mechanical properties of the repaired parts are investigated,and the stress strain curves and fracture locations of the composite process and arc additive process are compared.The results show that by optimizing the fiber spacing,operating current,and feed rate,and maximizing the pulse energy and frequency,the tensile strength and elongation of the repaired parts can be improved by 16.4%and 1.5 times respectively at most.The hybrid process can strengthen the fusion zone and partially melted zone of the repaired components,thereby enhancing their mechanical properties.

关 键 词：修复再制造 激光锻造 电弧增材 力学性能 

分 类 号：TG665[金属学及工艺—金属切削加工及机床]