Engineering Proceedings, Volume 26, Issue 1

The conduction of structure-borne sound through joints causes energy dissipation. The sound reduction index describes this energy loss as a level decrease in the particle velocity across series-connected damping elements for which the superposition p...

Cold-forming processes represent important technologies in steel processing. Cold-formed workpieces are often case-hardened in an energy- and cost-intensive process. Alternative finishing can be carried out by means of mechanical surface treatments,...

High Strength Steels (HSS) are widely used in the automotive industry to reduce the vehicle’s weight and improve fuel efficiency. The press hardening process is used, for instance, to form and harden low-alloyed steel simultaneously. A deep und...

This paper will give an overview about the development of a material system, which consists of a novel formable magnesium alloy that is provided with an effective corrosion protection coating. The corrosion protection is to be realized in the form of...

Deep rolling is a mechanical surface treatment for the specific modification of edge zone properties. In this process, the surface is plastically deformed by a rolling element. The roughness, residual stresses and hardness in particular can be positi...

As digital twins are bringing increasing benefits to the product development process, their growing popularity is noticeable. While they are already very popular within the development process, they are not very common in service applications, althou...

Forming machines and their subsystems, e.g., the drawing cushion in sheet metal-forming machines, pose high power as well as precision requirements in both the positioning and the force, which are directly linked to the quality of the produced part....

Implementing “first-time-right” production processes increases a production line’s sustainability and minimizes rejects. Multi-camera systems are a key element since they can quickly detect defects without contact. However, it is st...

Incremental sheet metal forming offers the possibility of producing formed parts in small batches efficiently and in a resource-saving manner. However, in order to exploit this potential, a high level of process understanding and process-relevant mat...

Modern car bodies are constantly relying on higher proportions of high- and ultra-high-strength steels. In the past, the increase in material strengths led to a conflict regarding the complexity of component geometries. Limits of material formability...

As the main functional element of the fuel cell, the bipolar plate ensures the functions of media distribution, electron conduction, and mechanical stability of the entire fuel cell stack. Currently, metallic bipolar half-plates are manufactured usin...

In the last decades, the application of automatic control techniques in freeform bending processes was limited to the motion control of the bending die, i.e., the workpiece itself was not considered inside the closed-loop control system. In a previou...

The amount of complex profile components in car bodies increases due to the emerging electromobility. High-strength aluminum alloys are ideally suited as material for automotive applications due to their extraordinary lightweight construction potenti...

The envisaged flexibility of Single Point Incremental Forming is contradicted by its highly complex deformation behavior, making the process easy to implement but difficult to fully control. This paper describes a regression method that uses Gradient...

Hydrogen technology is central to the process of turning away from fossil fuels. Electrolyzers and fuel cells of various sizes are needed to implement the hydrogen strategy. The cost-efficient forming of bipolar plates is key to the implementation of...

The iterative development process of forming tools is cost- and labor-intensive. The main reason for this is the high complexity of interaction between forming machine, tool structure, and process, which is currently only partially taken into account...

The high degree of individuality as well as complexity in metal-forming technology is still challenging regarding the development, integration, and operation of cognitive IoT technologies, such as sensors. In particular, the requirements for these sy...

Research activities considering lightweight design are dedicated to substituting classic mild steels by light metal alloys. Magnesium is especially promising due to its beneficial strength–density ratio, but its industrial use is still limited...

Commissioning die cushions of a press is a highly complex task, and errors in the process must be avoided. Augmented Reality (AR) can help the engineer to overcome the encountered problems by visualizing the current situation with a superimposed 3D m...

The manufacturing of three-dimensional components by deep drawing is performed using flat sheets. The material properties of the sheets are influenced by the deep drawing process by means of microstructural effects (e.g., anisotropy, residual stresse...

As a joining-by-forming process, clinching and the use of functional elements enable low-energy joining of components through form, force, and, under certain conditions, material closure. In addition to the transmission of mechanical forces, these jo...

Due to their low inertia, vibrations are stimulated during electromagnetic forming of thin sheets, whereby the excitation might involve the impact on the die and the oscillation of the electromagnetic forces. Depending on the configuration of the pul...

Brass is a material that can be used for a wide range of products, e.g., door fittings and handles, products from the electrical sector, installation technology from the sanitary sector, hydraulics, and pneumatic components. For Germany and northern...

At the current state of the art, the roll bending of heavy plates is mainly controlled and monitored manually. By automating these tasks, the economic efficiency of the process can be increased significantly. For this reason, the industry is looking...

Press hardening is used to produce complex parts by hardening them in a die. This results in martensitic structures with high strength values but low ductility. However, for real components, the combination of places with high strength or high ductil...