Joining by high speed forming by laser induced shock waves

激光诱导冲击波高速成形连接

• 批准号: 227753151
• 负责人: Professor Dr.-Ing. Frank Vollertsen
• 金额: --
• 依托单位: BIAS - Bremer Institut für Angewandte Strahltechnik GmbH
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 2012
• 资助国家: 德国
• 起止时间: 2011-12-31 至 2017-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/227753151?language=en
• 关键词: Joining; speed; forming; laser; induced

The demand to implement more functionality on limited amount of space promotes miniaturization. This makes hybrid joints under various conditions and also in the micro range necessary. Existing solutions often have restrictions due to the principle of joining. Therefore this project aims to clarify open questions which exist regarding joining of copper and aluminum. A plastic forming process based on laser induced shockwaves, which is named Micro-IHU, will be used to realize sheet-sheet connections. The knowledge of joining of metallic sheets by laser-induced shock waves should be used to enable the joining of aluminum with non-metallic materials such as glass and thermoplastics. For industrial applications the dimensioning is important in matters of strength and feasibility of a joint. Therefore an analytical model for the determination of the joining strength will be developed. As working hypothesis it is assumed that the design of the joint can be described on the basis of material properties. Moreover, the stiffness of the joining partners can be used as the decisive criterion for the joining possibility in the joining area. The advantages of this process are to be applied to different material combinations.

在有限的空间上实现更多功能的需求促进了小型化。这使得在各种条件下以及在微观范围内的混合接头成为必要。现有的解决方案通常由于连接的原则而具有限制。因此，本项目旨在澄清铜和铝的连接存在的悬而未决的问题。一种基于激光诱导冲击波的塑性成形工艺，称为微IHU，将用于实现板-板连接。应利用激光诱导冲击波连接金属板的知识，使铝与玻璃和热塑性塑料等非金属材料的连接成为可能。对于工业应用，尺寸标注在连接的强度和可行性方面是重要的。因此，将开发用于确定连接强度的分析模型。作为工作假设，它是假定的设计的联合可以描述的基础上的材料性能。此外，连接伙伴的刚度可以用作连接区域中连接可能性的决定性标准。该工艺的优点是适用于不同的材料组合。