Daniel Trauth

• Dr.-Ing. Dipl.-Wirt.Ing.
• Senior Scientist Blockchain at Fraunhofer Institute for Applied Information Technology

Taleb coined the term “antifragility” to describe systems that benefit from stressors and volatility. While nature provides several examples of systems with antifragile behavior, manufacturing has so far only aimed to avoid or absorb stressors and volatility. This article surveys existing examples of antifragile system behavior in biology, biotechn...

The increasing use of artificial intelligence for cost- and sustainability-oriented optimization of manufacturing processes leads to a restructuring of the working world within the producing industry. Employees on site transform into the orchestrator of a multitude of autonomously acting plants based on data analysis. However, the necessary experti...

The digital transformation currently represents one of the biggest changes in the manufacturing industry. However, the digitalization of products and processes not only opens up opportunities and possibilities, but also challenges. One of the reasons for this is a lack of qualified personnel and the lack of an appropriate IT infrastructure. Therefo...

The Internet of Things only unfolds its full economic potential by overcoming existing product and industry boundaries. Nevertheless, in research cyber-physical systems are often considered in isolation. The term Internet of Production (IoP) stands for the vision of an overarching exchange of data and information between product development, produc...

Zusammenfassung Es kann künftig möglich sein, im Internet der Dinge (engl. Internet of Things, kurz IoT) Daten und Resilienz-Services ebenso souverän wie selbstsicher zu handhaben und auszutauschen. Ähnlich wie dies heutzutage mit physischen Ressourcen möglich ist. Um diese Vision zu realisieren, entwickeln Forschende im Projekt SPAICER einen GAIA-...

Monitoring systems in sheet metal forming cannot rely on direct measurements of the physical condition of interest because the space between the die component and the material is inaccessible. Therefore, in order to gain further insight into the forming or stamping process, sensors must be used to detect auxiliary quantities such as acoustic emissi...

Industry 4.0 is characterized by the transformation and networking of production systems as a result of utilizing digital technologies and processing huge amounts of data. The features of Distributed Ledger Technologies have the potential to revolutionize production by creating trust and transparency in stored data, eliminating dependence on single...

Resilience - the ability to deal with crises and recover from their effects as quickly as possible - has been glorified since the COVID-19 pandemic as the new miracle cure against the effects for disruptions that occur in the future. Especially for Germany as an export-oriented location, the resilient design of supply chains is an economic success...

Composites' high material costs enforce a focus on quality assurance. Yet, current quality assurance systems are expensive and only indirectly detect errors. Artificial neural networks can directly identify errors in images. However, their inner complexity is incomprehensible to humans, which leads to issues of accountability and acceptance. Hence,...

Die digitale Transformation stellt aktuell eine der größten Veränderungen in der produzierenden Industrie dar. Die Digitalisierung von Produkten und Prozessen eröffnet aber nicht nur Chancen und Möglichkeiten sondern auch Herausforderungen. Der Grund dafür ist u. a. ein Mangel an geeigneten Fachkräften und das Fehlen einer geeigneten IT-Infrastrukt...

Das Internet of Things entfaltet erst durch die Überwindung von bestehenden Produkt- und Industriegrenzen sein volles ökonomisches Potenzial. Trotzdem werden Cyberphysische Systeme in der Forschung bisher oftmals isoliert betrachtet. Der Begriff des Internet of Production (IoP) steht für die Vision eines übergreifenden Austauschs von Daten und Info...

The amount of information contained in process signals such as acoustic emission and force signals has proven vital for the detection of changes in physical conditions or quality feature prediction in sheet metal forming applications. Both signal types have also been researched in the context of wear detection, yet systems that reliably identify th...

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The process setup of manufacturing processes is generally knowledge-based and carried out once for a material batch. Industry experts observe fluctuations in product quality and tool life, albeit the process setup remains unchanged. These fluctuations are mainly attributed to fluctuations in material parameters. An in-situ detection of changes in m...

The vision of the Paris Climate Convention is global greenhouse gas neutrality by 2050. Manufacturing industry accounts for approximately 25% of global greenhouse gas. The achievement of emission targets requires joint implementation and the participation of the employee. An incentive concept based on a Distributed Ledger Technology allows the auto...

Die Monetarisierung von Daten ist per se ein sehr junges Thema, zu dem es nur sehr vereinzelt Fallbeispiele gibt. Es fehlt an einer Strategie bzw. einem Konzept, das Führungskräften den Weg in die Monetarisierung von Daten zeigt, insbesondere jenen, die die Digitale Transformation bzw. Industrie 4.0 für sich entdeckt haben oder davon bedroht sind....

Tool wear during fine blanking impairs the quality of the sheared part, which is assessed in regular samples in an industrial environment. This leads to scrap production and low planning reliability due to low wear predictability. A tool condition monitoring based on acoustic emission (AE) data for the prediction of the remaining useful life of the...

Der zunehmende Einsatz von Künstlicher Intelligenz zur kosten- und nachhaltigkeitsorientierten Optimierung der Fertigungsprozesse führt zu einer Umstrukturierung der Arbeitswelt innerhalb der produzierenden Industrie. Beschäftigte vor Ort verwandeln sich zum Orchestrator einer Vielzahl von autonom agierenden Anlagen auf Basis der Datenanalyse. Die...

The use of Distributed Ledger Technologies in the field of production optimizes various use cases. Within the framework of the research project “Blockchain Reallabor in the Rheinisches Revier”, five use cases were defined for production in the first year of the project. The confidence in and transparency of stored data, the elimination of central e...

Cold forming, particularly forward impact extrusion, is used for mass production of steel components. To ensure robust forming processes, the workpieces are usually phosphated and then soaped as well as mineral oil-based lubricants are used. As these lubricants are often harmful to the environment and health, alternative approaches are to be invest...

Up to 250 fine-blanked components per luxury-class vehicle make a considerable contribution to the automotive production supply chain. High scrap rates in an industrial setting imply an inefficient use of the resources and process design and cause avoidable CO2-emissions. This contribution focusses on a data-driven production cycle optimization of...

Today’s supply chains are becoming increasingly flexible in nature. While adaptability is vastly increased, these more dynamic associations necessitate more extensive data sharing among different stakeholders while simultaneously overturning previously established levels of trust. Hence, manufacturers’ demand to track goods and to investigate root...

Networking and digitization in manufacturing enable novel methods of data-driven analysis and optimization of processes through cross-process data availability. The creation of digital twins plays an important role in this. However, not all data relevant for a digital twin can be measured directly in the process. Therefore, methods are needed that...

In the production industry, the volume, variety, and velocity of data as well as the number of deployed protocols increase exponentially due to the influences of the Internet-of-Things (IoT) advances. While hundreds of isolated solutions exist to utilize these data, e.g., optimizing processes or monitoring machine conditions, the lack of a unified...

Die Möglichkeiten und Herausforderungen des industriellen Internets der Dinge werden seit Jahren am Werkzeugmaschinenlabor WZL der RWTH Aachen unter dem Thema Internet of Production (IoP) untersucht. Das IoP ist auf interdisziplinäre Optimierungsansätze und die gesamte Wertschöpfungskette, insbesondere in den Bereichen Datenerfassung, Datenmodellie...

Fine blanking is a highly productive process of industrial mass production of high quality components in particular for the automotive industry. The manufacturing process faces a limit at elevated tensile strengths of the materials to be processed. Consequently, high-strength steels can currently only be fine blanked to a limited extent. This can b...

Sharing data between companies throughout the supply chain is expected to be beneficial for product quality as well as for the economical savings in the manufacturing industry. To utilize the available data in the vision of an Internet of Production (IoP) a precise condition monitoring of manufacturing and production processes that facilitates the...

Industrielle Güter durchlaufen eine Vielzahl von Bearbeitungsschritten, während der Bauteilwert sich entlang dieser Wertschöpfungskette steigert. Eine robuste und Edge-KI-basierte Vorhersage von Prozessergebnissen befähigt Maschinenbediener durch abgeleitete Handlungsempfehlungen aktiv bei ihrer Entscheidungsfindung. Dies ermöglicht nicht nur eine...

Purpose The modification of the tribological system is an essential aspect of the implementation of resource-saving processes in cold forming. As a result, the focus of this contribution is the influence of the tribological system on the full forward impact extrusion of aluminum alloy EN AW 6082 (T6) with regard to reduction of friction and wear....

Cold massive forming, particularly forward extrusion of steel, is characterized by high material utilization, product quality and resource efficiency. Currently, enormous quantities of mostly ecologically harmful lubricants are required, leading to the demand for lubricant‐free cold forming. Furthermore, cost savings are achievable due to shorter l...

Thin stainless steel sheets with a thickness of 0.4 mm are mainly used in the white goods sector and are subject to high demands in terms of economy and optical quality. In order to meet these requirements, thin stainless steel sheets are deep drawn using thin foils. The use of foils leads to a high environmental impact as well as to further cost-i...

Sheet-metal blanking is a class of metal fabricating processes that separate a metal workpiece from a primary metal sheet through a shearing process. Industry experts observe fluctuations in tool life and product quality, which is associated with fluctuations in microstructural parameters between and along material coils. With a methodology, that p...

The Internet of Production (IoP) envisions the interconnection of previously isolated CPS in the area of manufacturing across institutional boundaries to realize benefits such as increased profit margins and product quality as well as reduced product development costs and time to market. This interconnection of CPS will lead to a plethora of new da...

Cold massive forming, particularly forward extrusion of steel, is characterized by high material utilization, product quality and resource efficiency. Currently, enormous quantities of mostly ecologically harmful lubricants are required, leading to the demand for lubricant-free cold forming. Furthermore, cost savings are achievable due to shorter l...

Highly iterative product development is a promising approach, which enables a continuous inclusion of customers in the product development process. A stronger involvement of customers results in more frequent changes of the required product characteristics while the product is being developed. For the planning of manufacturing technologies, which t...

The work bowl acceleration of a vibratory finishing machine is mainly determined by the process input variables, e. g. the mass distribution between the upper and the lower imbalance weights, the offset angle between these imbalance weights and the rotational speed of the imbalance motor. The acceleration of the work bowl has a strong effect on the...

Tool manufacturers are facing a range of urgent challenges such as a rising global demand for energy and a shortage of critical resources. Eco-efficient tool manufacturing and efficient tool use are required to overcome these challenges. Modifying a tool’s manufacturing technology chain leads to changes in the ecological efficiency in its manufactu...

Tools in cold forging processes experience high loads. In order to reduce the process loads, solid and liquid lubricants are used. The use of lubricants is disadvantageous due to ecological, economical, and legislative reasons. Novel approaches in cold forging aim at the use of ecologically benign lubricants or avoiding the usage of lubricants comp...

Highly iterative product development is a promising approach to continuously involve customers in development and to meet global challenges such as short product life cycles and increasing variant diversity. In this context, the planning of production technologies, which takes place in parallel to product development, faces the challenge of process...

Large-scale cyber-physical systems such as manufacturing lines generate vast amounts of data to guarantee precise control of their machinery. Visions such as the Industrial Internet of Things aim at making this data available also to computation systems outside the lines to increase productivity and product quality. However, rising amounts and comp...

The increased usage of advanced high strength steels (AHSS) as materials for car body parts leads to a continuous reduction of car weight and thus a lowering of CO2 emissions. This weight reduction results from the higher yield and tensile strength of AHSS when compared to conventional steel grades. However, the higher strength of AHSS also leads t...

The Industrial Internet of Things (IoT) has a major role both in research and in manufacturing companies. There is an international understanding that the greatest economic opportunities of the overall IoT context are found in production optimization. High tolerance requirements prevailing in grinding highlight the necessity and thus represent one...

The reduction of material usage through damage control in metal forming processes provides the potential for cost reduction. The evolution of damage during metal forming processes has been shown to depend on the evolution of equivalent stress, stress triaxiality and the Lode parameter. However, the investigation of stress states does require numeri...

Fine blanking is one of the leading technologies in sheet metal separation. Its advantages in comparison to punching are to be found in precision and smooth cut of the cut surface. However, fine blanking faces its process limits at elevated sheet thickness and material strength. Especially the process limits in terms of tensile strength tend to be...

Aufgrund von sich ständig verkürzenden Produktlebenszyklen sind produzierende Unternehmen dazu gezwungen, in immer kürzeren Zeiträumen Produktan- und -ausläufe durchzuführen. Die integrierte Herstellung von An- sowie Auslaufprodukt im gemeinsamen Fertigungssystem bietet Potenzial zur gesamtwirtschaftlichen Optimierung der Fertigung. Hieraus resulti...

Zur schleiftechnischen Bearbeitung schwer zerspanbarer Werkstoffe wie Inconel 718 werden in der Industrie überwiegend CBN (kubisch kristallines Bornitrid)-Schleifscheiben verwendet. In der Regel kommt dabei Öl als Kühlschmierstoff zum Einsatz, was jedoch für viele Anwender nicht immer möglich ist. Ziel der Untersuchungen war daher der Vergleich zwi...

Grinding is one of the most important finishing processes in industrial production. During grinding, the workpiece is subjected to thermomechanical loads. Thermal damage can occur in terms of microstructure changes due to a critical temperature history. A holistic model of the relevant physical load fields and their interactions would help describe...

Cemented carbides are brittle-hard materials. Their properties are adjusted by the chemical composition, especially the binder fraction and the average hard phase grain size. This research work focuses on grinding of cemented carbides with tungsten carbide (WC) as hard phase and cobalt (Co) as binder phase material. Previous work showed that the WC...

In order to extend the understanding of damage evolution in sheet metal forming, standardized Nakajima tests are carried out on a DP800 dual phase steel. Sample geometries for characteristic stress-strain states are drawn in incrementing stages and their damage states are analyzed using light and scanning electron microscopy as well as micro hardne...

Due to the high material utilization and the associated resource and energy efficiency, production processes from the field of cold forging of steel are of great importance. At present, environmentally harmful lubricants have to be used to ensure process stability as well as low wear and friction. Due to environmental, economic and legislative aspe...

Fuel efficiency requirements demand lightweight construction of vehicle body parts. The usage of advanced high strength steels permits a reduction of sheet thickness while still maintaining the overall strength required for crash safety. However, damage, internal defects (voids, inclusions, micro fractures), microstructural defects (varying grain s...

Deep rolling is an established mechanical surface treatment technology based on local plastic deformation of the surface layer. By these means, residual stresses, and strain hardening are induced into the surface layer as well as its surface structure is smoothed. Vibrorolling is a derivate technology of deep rolling characterized by sinusoidal rol...

Cutting tools made of polycrystalline diamond (PCD) are used for machining of aluminum alloys, fiber-reinforced plastic composites and wood. Compared to cemented carbide tools with geometrically defined cutting edges, PCD tools offer significant advantages with respect to tool life. High demands regarding the cutting edge roughness and the quality...

Lightweight structural components made of carbon fibre reinforced plastics are manufactured near-net-shape. However, in order to fulfil geometrical or functional requirements, carbon fibre reinforced plastic components have to be trimmed and pierced in a finish processing step. Shearing is a highly productive technology that is potentially suitable...

Machine hammer peening (MHP) is a high-frequency incremental forming process for surface treatment, which is used on milling machines. Because of the stationary motor spindle as a result of the pneumatic and electrical connections to the hammer head, point loads can occur and may initiate false brinelling wear on the spindle bearing rings. The aim...

The material removal mechanisms of one-phase brittle materials during grinding are largely understood. In contrast, the material removal mechanisms of two-phase brittle materials are just known rudimentary hindering the prediction of the workpiece surface characteristics resulting from a grinding process. Hence, in this work, the material removal m...

For economic reasons, fine blanking of asymmetric parts is performed with shifted and rotated part nesting. It was observed that both the part position and the part orientation on the sheet metal strip affect the die-roll height. Therefore, the influence of the bridge width between the produced cutting line and the strip edge or existing sheared ed...

A targeted adjustment of the dressing results and the methodological influence of the dressing process on the non-stationary wear of a grinding wheel after dressing increases the productivity and the reproducibility of grinding processes. Despite the great economic importance of grinding processes with vitrified corundum grinding wheels and the gre...

The contact force and the relativevelocitybetween workpiece and abrasive media in a vibratory finishing have a strong effect on the material removal rate and the surface roughness of the machined workpieces. Both, the contact force as well as the relative velocity, are mainly influenced by the characteristics of the abrasive media type used as well...

Industrial standard for introducing compressive residual stresses and improving the fatigue life of compressor blades in pumps, martensitic chromium-nickel stainless steel X3CrNiMo13-4 is surface treated by means of shot peening. Due to the process principle, the kinetic impact energy of the shot peening medium is lower and the resulting surface ro...

In fine blanking the sheared edge’s quality is of major importance. As the sheared edge needs to transmit process forces and precisely align parts, attributes like die rolls, tears and tear-offs need to be eliminated. Currently, these attributes are manually determined at the end of the process chain, which makes a complete correlation between infl...

A method for the development of a predictive model for the die roll height in fine blanking using artificial neural networks and support vector machines is presented. Since artificial neural networks require big amounts of training data and generation using experiments is very time consuming and cost intensive, a validated FE model is used instead....

Surface modification of workpieces for cold forming processes is common in industrial practice. Specific surface topographies manufactured by means of shot peening form lubricant pockets, which provide a continuous lubricating film throughout the process. Furthermore, hydrostatic as well as hydrodynamic lubrication effects emerge, which further red...

This paper presents an analytical model to analyze the energy partitioning in grinding based on the process parameters and the grinding wheel topography. Therefore, the energy-partitioning model of Demetriou und Lavine is coupled with a kinematic topography analysis, which predicts the kinematic engagement conditions along the contact zone using me...

In der Schleiftechnik besteht ein erhebliches Wissensdefizit über den Einfluss der Schleifscheibentopographie auf das Schleifprozessverhalten und die Ausbildung der Bauteilrandzoneneigenschaften. Ziel der Untersuchungen war daher die Identifikation und Analyse quantitativer Kenngrößen zur Beschreibung der geometrischen Schleifscheibentopographieeig...

Innenhochdruck-Umformen (IHU) eignet sich durch gute dynamische Materialeigenschaften und einen produktiven Prozess für die Serienfertigung von Bauteilen für die Automobilindustrie. In dieser Arbeit wurde ein neuartiges Werkzeugkonzept entwickelt, um IHU von massiven Napfhalbzeugen auf einer einfach wirkenden Presse zu ermöglichen. Zur Substitution...

Steigende Individualisierung und hohe Marktunsicherheiten zwingen Unternehmen dazu, ihre Kunden kontinuierlich in die Produktentwicklung einzubinden und Produktänderungen auch in späten Entwicklungsphasen zu berücksichtigen. Die hochiterative Entwicklung physischer Produkte bietet ein großes Potenzial, um diesen Herausforderungen zu begegnen, führt...

Der Artikel beschreibt eine systematische Untersuchung des Verschleißes einer keramisch gebundenen Diamantschleifscheibe beim Schleifen von polykristallinem Diamant vom Typ CMX 850 bei variablen Prozesseingangsgrößen. Ein neu entwickelter Versuchsaufbau ermöglicht die Betrachtung eines fortschreitenden Schleifscheibenverschleißes auf mikroskopische...

Kurze Reaktionszeiten auf Produktänderungen zu gewährleisten, ist aktuell eine große Herausforderung im Maschinenbau. Als Lösungen werden zunehmend Metamodelle entwickelt, die einzelne Fertigungsprozesse abbilden und eine schnelle Datenverarbeitung ermöglichen. In diesem Beitrag werden Anforderungen und Lösungsansätze vorgestellt, die eine Verknüpf...

The evaluation of the economic efficiency of machine tools with several integrated manufacturing technologies (multi-technology platforms) is a challenging task. In this article, an approach that enables an economic evaluation and a consideration of thermomechanic interactions in a laser-integrated machine tool is presented, using two case examples...

Kurzfassung Die ökologische Bewertung von Technologien erfolgt bislang unter Berücksichtigung der Herstellungsphase eines Produkts. Effekte, die zu einer Reduktion der Umweltauswirkungen in weiteren Lebensphasen führen, werden vernachlässigt. Daher wurde ein Vorgehensmodell zur Bewertung von Technologien anhand der Umweltauswirkungen des gefertigte...

The relative velocity between workpiece and media has a strong effect on the material removal rate in vibratory finishing. Due to this fact, a measurement system in the form of a camera-integrated workpiece is presented in this paper, which is capable of measuring the relative velocity between the workpiece and the media in an unguided vibratory fi...

Any surface orthogonal indentation into a metal structure with friction leads to a deformation in the interface between indenter and material. Transferring this observation to turning and taking the cutting velocities vc and vchip into account results in a stagnation point in the chip formation process. The friction behaviour depends on the velocit...

A method to enable dry metal forming by the means of a self-lubricating coating and surface textures was researched using an innovative Pin-On-Cylinder-Tribometer. The experimental analysis was complemented by a numerical model of the complex contact conditions between coated tools and the surface textured specimen at the micro-level. Based on the...

A methodology to enable dry metal forming by means of a self-lubricating coating and surface textures on workp ieces was researched using an innovative Pin-on-Cylinder- Tribometer. It was found, that the evolving tribological system is dependent on friction, which can be influenced by the actors of the system. Based on the results, the explanation...

The procedure of a numerical shape optimization of the cold forging tool geometry allows for a reduction and a homogenization of tool load stresses. This procedure considers the workpiece-tool-machine interaction by means of the FEM/BEM coupling. The coupling requires modifications to insure accurate integration in TOSCA software for further shape...

Cemented carbides are hard and brittle materials. Their material properties are adjusted by their chemical composition, in particular their average hard phase grain size and their binder fraction. The research paper focusses on grinding of cemented carbides with cobalt (Co) as binder and tungsten carbide (WC) as hard phase material. Within the rese...

Die roll is a morphological feature of fine blanked sheared edges. The die roll reduces the functional part of the sheared edge. To compensate for the die roll thicker sheet metal strips and secondary machining must be used. However, in order to avoid this, the influence of various fine blanking process parameters on the die roll has been experimen...

In production engineering cold forging processes are of great importance due to the high material utilization and the associated energy and resource efficiency. In order to successfully perform cold forging processes, liquid and solid lubricants are used, which are often questionable due to ecological, economic and legislative reasons. For these re...

Cold forging processes in production engineering enable a high material utilization with a considerable energy and resource efficiency. In such processes, liquid and solid lubricants are commonly used to reduce the friction between forming tools and workpieces. However, using of lubricants in tribological cold forging processes is unfavorable to ec...

Within the first phase of the German priority program SPP 1676 a significant milestone was laid in terms of a tribological system for dry metal forming of low alloy steels. A self-lubricating (Cr,Al)N+XS2 (X=Wo, M) coating was developed by the IOT of RWTH Aachen University and the suitability of the coatings for dry metal forming was demonstrated....

Tools and workpieces in bulk metal forming processes such as electro-assisted upsetting or hybridized solid forward extrusion are subjected to electrical and thermo-mechanical loads. Existing electric contact models like the one of Holm do not regard the complex electro-thermo-mechanical interactions in the contact area between tool components and...

Innerhalb der ersten Projektphase des Schwerpunktprogramms (SPP) 1676 der Deutschen Forschungsgemeinschaft (DFG) wurden erste Schritte in Richtung eines geeigneten Tribosystems zur trockenen Kaltmassivumformung niedrig legierter Stähle mittels Vollvorwärtsfließpressen (VVFP) erforscht. Am Institut für Oberflächentechnik (IOT) der RWTH Aachen wurde...

Faserverstärkte Oxidkeramiken (CMC) mit poröser Matrix sind ein zukunftsrelevanten Werkstoff für Hochtemperaturanwendungen. Eine Schleifbearbeitung von Komponenten aus faserverstärkten Oxidkeramiken ist in vielen Fällen notwendig. Allerdings existieren keine Kenntnisse zu den bei der Schleifbearbeitung vorliegenden Zerspanmechanismen und dem daraus...

The increased usage of advanced high strength steels (AHSS) as material for car body parts leads to a continuous reduction of car weight and thus a lowering of CO2 emissions. This weight reduction results from higher yield and tensile strength of AHSS than conventional steel grades. However, the higher strength of AHSS leads to higher loadings of t...

Fiber-reinforced ceramics (ceramic matrix composites (CMCs)) with uncoated alumina oxide fibers in a porous alumina oxide matrix represent a group of materials with high application potential and future importance. In most cases, a grinding process is necessary to fulfill surface and tolerance requirements. However, the machining characteristics of...

Servoelektrische Pressen erlauben das Tiefziehen mit reversierenden Hubverläufen und damit die Erweiterung des Prozessfensters. Die Einflüsse der Prozessparameter Stichanzahl, Stößelgeschwindigkeit bei Vorwärts- und Rückwärtsbewegung sowie Amplitude der Rückwärtsbewegung auf die Faltenbildung beim Tiefziehen von Näpfen werden untersucht. Die Falten...

Höhere Anforderungen an die Produktivität und aktuelle Trends stellen den Feinschneidprozess vor neue Herausforderungen. Infolgedessen ist eine optimierte Prozessführung notwendig. Ein Modell, welches großes Potenzial für eine Optimierung der Prozessführung bietet, sind künstliche neuronale Netze. Dieser Fachbeitrag stellt eine Methodik zur Nutzung...

Many components in industrial practice need to be finished by surface modification processes in order to assure service properties like fatigue resistance, tribological properties and corrosion resistance. In order to compare the potential of different machine hammer peening (MHP) processes and burnishing Almen strips were treated with three aims:...

Recently, the velocity distribution within an elliptical machine hammer peened (MHP) surface structure was discussed by solving analytically the Reynolds equation using Full-Sommerfeld boundary condition (Trauth et al. in Tribol Lett 60(19):1–13, 2015). However, in order to design the MHP process to obtain defined friction characteristics and load...

Lubricants are applied to reduce friction between workpieces and tools in many processes, such as cold forging. Due to significant advances in solid lubricant coatings deposited by physical vapor deposition (PVD) in the recent years, coatings took over the tasks of lubricants in numerous applications. However, most attempts to realize dry metal col...

Due to a high specific strength, carbon fibre reinforced plastics (CFRP) enable material driven light-weighting of structural components. A constant increase of CFRP usage is predicted to continue in the future. At high production numbers blanking can be cost efficiently used for piercing or trimming operations of cured CFRP components. Compared wi...

Lubricants are applied to reduce friction between workpieces and forming tools in cold forging processes. There is a strong demand to avoid lubricants due to economic, ecological and legislative aspects. PVD coatings took over the tasks of lubricants in numerous applications in the recent years. They may enormously reduce tool and workpiece wear in...