TRR 285: Method development for mechanical joinability in versatile process chains

TRR 285：多功能工艺链中机械连接性的方法开发

• 批准号: 418701707
• 金额: --
• 依托单位: Friedrich-Alexander-Universität Erlangen-Nürnberg
• 依托单位国家: 德国
• 项目类别: CRC/Transregios
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/418701707?language=en
• 关键词: TRR; 285; Method; development; mechanical

Joinability is often the key to efficient production processes of component structures. In order to efficiently realise the increasing variety of products through different materials and construction methods via a process chain, its versatility is required, especially if resilience to changes in supply chains is to be ensured. A versatile process chain, i.e. a sequence of all the necessary processes and process steps for product creation, enables targeted changes to be made to the semi-finished product, the joining area, the component or the joining process that exceed the originally planned extent while still ensuring joinability. The growing number of material-geometry combinations (MGCs) requires not only a reliable prediction of the joinability but also, and in particular, a versatility of the mechanical joining processes. The transregional collaborative research center 285 (TCRC285) uses the example of mechanical joints to research scientific methods for versatility in the three areas of material (joining suitability), design (joining safety) and production (joining possibility) as well as for reliable prediction and design of the joinability. With a view to the numerous MGC, tolerant and quickly adaptable solutions to different joining conditions and disturbance variables are required through the development of joining processes. In the long term, a flexible and transferable design methodology will be available that offers the possibility of selecting processes and designing joints for new joining tasks, creating material solutions suitable for joining and also predicting the achievable mechanical properties of the joints in advance. Forming and pre-hole-free mechanical joining processes are particularly efficient, the fundamentals of these were investigated in the first funding period. Research into the complex cause-effect relationships in the mechanical joining of aluminium, steel and fibre-reinforced plastic composites (FRP) has created the basis for a holistic prediction of the joinability of a joint, from the material properties of the parts to be joined to the joining processes and the adjusted property profile. In the second funding period of TCRC285, the interactions between the preceding manufacturing steps and the joint load bearing capacity are therefore to be researched with a focus on processes and materials, in order to create the foundations for achieving the versatility of the mechanical joining processes, also with novel process approaches, and a transferable design methodology for mechanically joined joints. The vision is to ensure mechanical joinability for all realistic requirement profiles in versatile process chains without setup effort or physical validation tests by creating suitable methods.

可连接性通常是部件结构高效生产工艺的关键。为了通过工艺链通过不同的材料和构造方法有效地实现越来越多的产品种类，需要其多功能性，特别是如果要确保对供应链变化的适应性。通用的工艺链，即产品制造所需的所有工艺和工艺步骤的序列，可以对超出原计划范围的半成品、连接区域、部件或连接工艺进行有针对性的更改，同时仍确保可连接性。越来越多的材料几何组合（MGCs）不仅需要一个可靠的预测的可连接性，但也，特别是，机械连接过程的多功能性。跨区域合作研究中心285（TCRC285）以机械连接为例，研究材料（连接适用性）、设计（连接安全性）、生产（连接可能性）三个领域的通用性以及连接性的可靠预测和设计的科学方法。鉴于众多的MGC，通过连接过程的发展，需要对不同的连接条件和干扰变量进行宽容和快速适应的解决方案。从长远来看，灵活和可转移的设计方法将提供选择工艺和设计新连接任务的接头的可能性，创建适合连接的材料解决方案，并提前预测接头可实现的机械性能。成型和无预孔机械连接工艺特别有效，在第一个资助期内对这些工艺的基本原理进行了研究。对铝、钢和纤维增强塑料复合材料（FRP）机械连接过程中复杂因果关系的研究为全面预测连接件的可连接性奠定了基础，从待连接部件的材料特性到连接工艺和调整后的特性曲线。因此，在TCRC 285的第二个资助期内，将重点研究先前制造步骤与接头承载能力之间的相互作用，重点关注工艺和材料，以便为实现机械连接工艺的多功能性奠定基础，同时采用新颖的工艺方法和可转移的机械连接接头设计方法。我们的愿景是通过创建合适的方法，确保在多功能工艺链中满足所有现实需求的机械可连接性，而无需进行设置工作或物理验证测试。