manufacturing

In recent years, digital platforms have established themselves as a central concept in the IT field. Due to the wide variety of digital platforms available on the market, there is still a need for clear comparison with criteria to enable interested parties to select, change, operate and further develop these platforms. The following paper aims to contribute to the facilitation of this comparison by undertaking a systematic literature review of digital platform frameworks in the context of the Industrial Internet of Things (IIOT) for manufacturing companies and thus providing a basis for a number of potential ways to effectively compare current digital platforms and ecosystems.

Wire Arc Additive Manufacturing (WAAM) is an additive manufacturing process which produces metallic components on the basis of arc welding. ISO/ASTM 52900 describes additive manufacturing as a process that creates components layer by layer from 3D model data. The basic equipment required includes a welding device, introducing the energy necessary for melting the metal wire, and a guiding machine, which traces the specified geometry of the component. Applications for WAAM include rapid prototyping and tooling, direct manufacturing and additive repair. The greatest advantages the process offers are low-cost system technology and a high deposition rate. The disadvantages of the process are the lack of process stability and exact repeatability. This article is intended to provide a clear overview of the WAAM manufacturing process, and to address its complex interactions.

Within the concepts of Industry 4.0, the term “Smart Factory” stands for the creation of effective production environments through digitalization and cyber-physical systems. Most manufacturers plan to make their manufacturing systems more automated, flexible and adaptive. In the course of these efforts, intelligent materials are increasingly brought into focus. Combined actuator and sensory properties enable the construction of lightweight and compact multifunctional actuator-sensor systems that are operated in an energy-efficient, noise-free and emission-free manner. This makes them appropriate for building networked systems. Shape memory alloys (SMAs) and dielectric elastomers (DEs) are particularly suitable for building intelligent actuators, and are presented in this article alongside several use cases.

Collaborative robots (so-called cobots) that enable secure hand-in-hand collaboration with construction workers without physical separation are regarded as a promising future technology for manufacturing companies. In practice, there are some cases in which people interact with cobots, but very few in which collaboration in a narrower sense takes place. What are the reasons for this lack of collaborative applications? What role does the cobots’ ability to enable collaboration play in practice? The study is based on qualitative evidence gathered in four German small and medium-sized enterprises (SMEs).

Handling increasing complexity is a major challenge within the manufacturing industry. Methods from Industrie 4.0, e. g. data analytics, can support in reducing complexity. Currently, benefits of implementing data analytics within large scale manufacturing are limited. For this purpose, a study regarding the potentials and obstacles for data analytics in large scale manufacturing was conducted. The results of this study show the necessity of adaptive data availability, strategic prioritization as well as scalable data analytics in order for data analytics to be successful.