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

接合性通常是部件结构高效生产过程的关键。为了通过工艺链通过不同的材料和施工方法有效地实现产品种类的增加，需要其多功能性，特别是如果要确保对供应链变化的弹性。通用工艺链，即产品创建的所有必要工艺和工艺步骤的序列，可以在确保可接合性的同时，对半成品、接合区域、部件或接合过程进行超出原计划范围的有针对性的更改。越来越多的材料几何组合（MGCs）不仅需要可靠的可接合性预测，而且特别是机械连接工艺的多功能性。285跨区域合作研究中心（TCRC285）以机械接头为例，研究在材料（连接适用性）、设计（连接安全性）和生产（连接可能性）三个领域的通用性以及可靠的连接性预测和设计的科学方法。针对众多的MGC，在开发连接工艺的过程中，需要对不同的连接条件和干扰变量具有容忍度和快速适应性的解决方案。从长远来看，一种灵活且可转移的设计方法将为选择工艺和设计新的连接任务提供可能性，创造适合连接的材料解决方案，并提前预测连接可实现的机械性能。成形和预无孔机械连接工艺特别有效，这些基本原理在第一个资助期进行了研究。对铝、钢和纤维增强塑料复合材料（FRP）机械连接中复杂的因果关系的研究，为从要连接的部件的材料特性到连接过程和调整的性能概况，对连接的可连接性进行整体预测奠定了基础。因此，在TCRC285的第二个资助期，将重点研究先前制造步骤与关节承载能力之间的相互作用，以工艺和材料为重点，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，并为机械连接接头提供可转移的设计方法。愿景是通过创建合适的方法来确保通用过程链中所有实际需求概要的机械可接合性，而无需设置工作或物理验证测试。

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.