Ultrasonic joining of aluminum/titanium joints for hybrid lightweight applications

用于混合轻量化应用的铝/钛接头的超声波连接

• 批准号: 233949021
• 负责人: Professor Dr.-Ing. Frank Balle
• 金额: --
• 依托单位: Institut für Oberflächen- und Schichtanalytik GmbH (IFOS)
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2013
• 资助国家: 德国
• 起止时间: 2012-12-31 至 2015-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/233949021?language=en
• 关键词: Ultrasonic; joining; aluminum; titanium; joints

Hybrid lightweight design dominates the development of future vehicle concepts in traffic engineering and the aerospace industry. To realize such multi-material systems appropriate and effective joining technologies are necessary. In this project ultrasonic metal welding will be investigated to realize aluminum-titanium hybrid joints in the solid state. Important structural aluminum and titanium alloys were chosen to produce high strength joints by using advanced process control and new welding tools. To identify the best process variant for structural applications a direct comparison of ultrasonic spot and torsion welding technique will be studied. Detailed experiments to the kinematics during ultrasonic welding are central points of interest, which are examined by laser vibrometry online. The process parameters welding force, oscillation amplitude and welding energy are determined by using modern statistical methods for the design of experiments. The bonding phenomena are related to the process variant and its specific process parameters and should be described in detail. Possible interfacial reactions like diffusion, formation of mixed crystals, and removal of passivation layers should be confirmed by electron microscopy and high-resolution spectroscopy. Finally a bonding model for ultrasonic welding of Al / Ti hybrids should be developed.

混合轻量级设计主导着交通工程和航空航天行业未来车辆概念的发展。要实现此类多物质系统，有必要进行适当有效的加入技术。在该项目中，将研究超声金属焊接，以实现固态的铝合金杂交接头。选择重要的结构铝和钛合金通过使用先进的工艺控制和新的焊接工具来产生高强度关节。为了确定结构应用的最佳过程变体，将研究超声波斑点和扭转焊接技术的直接比较。超声波焊接过程中运动学的详细实验是中心兴趣点，通过在线激光振动法检查。过程参数焊接力，振荡振幅和焊接能是通过使用现代统计方法来设计实验的。键合现象与过程变体及其特定过程参数有关，应详细描述。应通过电子显微镜和高分辨率光谱证实可能的界面反应，例如扩散，混合晶体的形成以及去除钝化层。最后，应开发用于Al / Ti杂种超声焊接的键合模型。

项目成果

Solid state joining of aluminum, titanium and their hybrids by ultrasonic torsion welding

• DOI: 10.1002/mawe.201400355
• 发表时间: 2014-12
• 期刊: Materialwissenschaft und Werkstofftechnik
• 影响因子: 1.1
• 作者: Jens Magin;F. Balle

Solid State Joining of Aluminium to Titanium by High Power Ultrasonics

• DOI: 10.4028/www.scientific.net/msf.794-796.345
• 发表时间: 2014-01-01
• 期刊: Aluminium Alloys 2014 - ICAA14
• 作者: Balle, Frank;Magin, Jens
• 通讯作者: Magin, Jens

Ultrasonic Spot and Torsion Welding of Aluminum to Titanium Alloys: Process, Properties and Interfacial Microstructure

铝与钛合金的超声波点焊和扭转焊：工艺、性能和界面微观结构

• DOI: 10.1016/j.phpro.2015.08.173
• 发表时间: 2015
• 期刊: Physics Procedia
• 作者: F. Balle;J. Magin
• 通讯作者: J. Magin