• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2018, Vol. 54 ›› Issue (22): 95-102.doi: 10.3901/JME.2018.22.095

• 材料科学与工程 • 上一篇    下一篇

铝-铜层状复合材料热辅助超声波増材制造方法

王波1,3, 张洪涛1,3, 朱训明2, 王云峰2, 金伟2, 何鹏1   

  1. 1. 哈尔滨工业大学材料科学与工程学院 哈尔滨 150001;
    2. 威海万丰镁业科技发展有限公司 威海 264209;
    3. 山东船舶技术研究院 威海 264209
  • 收稿日期:2017-10-29 修回日期:2018-04-09 出版日期:2018-11-20 发布日期:2018-11-20
  • 通讯作者: 张洪涛(通信作者),男,1980年出生,博士,副教授,博士研究生导师。主要研究方向为复合焊接及弧焊改型技术、船舶及水下焊接装备、精密电阻焊连接技术、超声波増材制造技术。E-mail:zhanght@hitwh.edu.cn
  • 作者简介:王波,男,1989年出生。主要研究方向为超声波増材制造技术及装备,先进高效弧焊方法。E-mail:wangvbo@hit.edu.cn
  • 基金资助:
    山东省自然科学基金(ZR2018MEE027)、山东省重点研发计划(2017GGX30132)、泰山学者青年专家支持计划(tsqn20161062)和哈尔滨工业大学科研创新基金(HIT.NSRIF.201707)资助项目。

Hot-assisted Ultrasonic Additive Manufacturing Method for Al/Cu Layer-metal Composites

WANG Bo1,3, ZHANG Hongtao1,3, ZHU Xunming2, WANG Yunfeng2, JIN Wei2, HE Peng1   

  1. 1. School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001;
    2. Weihai Wanfeng Magnesium S & T Development Co., Ltd., Weihai 264209;
    3. Shandong Institute of Shipbuilding Technology, Weihai 264209
  • Received:2017-10-29 Revised:2018-04-09 Online:2018-11-20 Published:2018-11-20

摘要: 为实现铝铜层状复合材料的优质固相増材制造,克服现有超声波功率器件和设备输出功率的限制,提出具有辅助热场的大功率超声波増材制造装备及方法,并分析热场对铝铜界面结合性能的影响。在不同辅热温度下使用T2铜箔和1060铝箔进行了多层叠加固结试验,对Al/Cu和Cu/Al两种界面形式进行了研究,剥离试验和断口形貌分析表明Cu/Al界面形式具有更高的剥离强度。采用SEM和EDS方法,分析了不同加热温度和压力下的铝-铜界面组织特征,结合金相分析和力学性能测试结果表明:Al/Cu界面力学强度随辅助加热温度的上升而提高,并在加热温度为100℃时铝铜界面在超声波作用下可以形成有效的固相连接接头,且最大力学强度达到26.23 N/mm,Al/Cu和Cu/Al两种焊接形式下界面处元素扩散层宽度均可达到4~6 μm;界面断口呈现准解理断裂的撕裂棱形貌特征。铝-铜复合材料超声増材制造过程中,辅助热场方式可明显提高铝-铜复合材料的加工质量和效率。

关键词: 超声波増材制造, 辅助热场, 加热温度, 力学性能, 铝-铜叠层复合材料

Abstract: In order to realize the high-quality solid-phase additive manufacturing of aluminum-copper layer-metal composites and overcome the limitations of the output power of the existing ultrasonic power devices, a high-power ultrasonic additive manufacturing equipment and method with an auxiliary thermal field is proposed. It is analyzed that the effect of thermal field on the microstructure and properties of aluminum-copper interface. The multi-laminated ultrasonic consolidation experiments are performed at different auxiliary temperatures using T2 copper foil and 1060 aluminum foil. The Al/Cu and Cu/Al interface forms are studied, and the peel test with fracture morphology analysis show that the Cu/Al interface form has a higher peel strength. It is analyzed that the Al-Cu interface microstructure characteristics at different heating temperatures using SEM and EDS methods. The metallographic and mechanical performance test results show that the mechanical strength of the Al/Cu interface increases with the rise of the auxiliary heating temperature, and the Al-Cu interface can form an effective solid-phase connector under the ultrasonic action at the heating temperature of 100℃. The maximum mechanical strength reaches 26.23 N/mm, and the width of the element diffusion layer at the interface between Al/Cu and Cu/Al is up to 4-6 μm. The interface fracture presents the morphology of the torn prism with quasi-cleavage fracture. The processing quality and efficiency by the means of auxiliary heat field during the process of ultrasonic additive manufacturing Al-Cu layer-metal composites.

Key words: Al/Cu layer-metal composites, heating temperature, host-assisted, mechanical properties, ultrasonic additive manufacturing

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