Inst. Werkzeugmaschinen und Fabrikbetrieb

179 Items

Recent Submissions
Guidelines for the implementation of Lean and MTM techniques in remanufacturing factory planning

Guidat, Thomas (2018)

Der zunehmende globale Verbrauch begrenzter, nicht erneuerbarer Ressourcen erfordert dringend den Wandel der Produktionsparadigmen [Dob-11, Leo-11, Sel-10]. Eine mögliche Vorgehensweise zur Bedienung der wachsenden Nachfrage ohne proportionale Zunahme des Ressourcenverbrauchs ist ein Management von Altprodukten entsprechend ihrer jeweiligen Nutzungsphase [EMF-14, Sel-05,]. Die Refabrikation/Rem...

Ectoine protects DNA from damage by ionizing radiation

Schröter, Maria-Astrid ; Meyer, Susann ; Hahn, Marc Benjamin ; Solomun, Tihomir ; Sturm, Heinz ; Kunte, Hans Jörg (2017-11-10)

Ectoine plays an important role in protecting biomolecules and entire cells against environmental stressors such as salinity, freezing, drying and high temperatures. Recent studies revealed that ectoine also provides effective protection for human skin cells from damage caused by UV-A radiation. These protective properties make ectoine a valuable compound and it is applied as an active ingredie...

Ultrasonic assisted milling of reinforced plastics

Uhlmann, Eckart ; Protz, F. ; Stawiszynski, B. ; Heidler, S. (2017)

The milling of glass and carbon fibre reinforced plastics provides manufacturers from the automotive and aerospace industry with major challenges. The high carbon and glass fibre content increases the risk of insufficient production qualities. The abrasive fibres cause cutting edge rounding which results in the issue that the comparatively thick glass fibre cannot be reliably cut, while the car...

Continuous maintenance and the future – foundations and technological challenges

Roy, Rajkumar ; Stark, Rainer ; Tracht, Kirsten ; Takata, Shozo ; Mori, Masahiko (2016-06-30)

High value and long life products require continuous maintenance throughout their life cycle to achieve required performance with optimum through-life cost. This paper presents foundations and technologies required to offer the maintenance service. Component and system level degradation science, assessment and modelling along with life cycle ‘big data’ analytics are the two most important knowl...

Carbon fibre recycling from milling dust for the application in short fibre reinforced thermoplastics

Uhlmann, Eckart ; Meier, Paul (2017)

A new approach to reuse accruing chips and dust from milling operations of carbon reinforced plastics (CFRP) is studied, show-ing how CFRP milling dust, in comparison to primary and pyrolysed fibres, can find application as a filler material in thermo-plastic granulates. Recent examinations show an overall better handling of milling dust when separating it into different classes of fibre length...

Condition monitoring in the cloud

Uhlmann, Eckhart ; Laghmouch, Abdelhakim ; Hohwieler, Eckhard ; Geisert, Claudio (2015)

Due to the very high demands on availability and efficiency of production systems and industrial systems, condition-based maintenance is becoming increasingly important. The use of condition monitoring approaches to increase the machine availability and reduce the maintenance costs, as well as to enhance the process quality, has increased over the last years. The installation of industrial sens...

Method for automated structuring of product data and its applications

Adolphy, Sebastian ; Grosser, Hendrik ; Kirsch, Lucas ; Stark, Rainer (2015)

Product structures represent the data backbone for through-life management of complex systems. Product Lifecycle Management (PLM) Systems are used to maintain product structures and track product changes. However, in maintenance, repair and overhaul (MRO) product composition often is unknown when MRO service providers are not the original manufacturers. Thus, MRO processes start with an exhaust...

Realization of a learning environment to promote sustainable value creation in areas with insufficient infrastructure

Muschard, Bernd ; Seliger, Günther (2015)

To increase the rationally demanded sustainability with its ecologic, environmental and social dimensions, innovative technology shall be exploited. For example waste can be used by means of closed loop material cycles for the production of new products. The understanding of such material cycles can help to deal responsibly with resources. Considering the limited awareness of more than seven bi...

Influence of the built-up edge on the stress state in the chip formation zone during orthogonal cutting of AISI1045

Uhlmann, Eckart ; Henze, Steffen ; Brömmelhoff, Katrin (2015)

In-situ strain measurements with high energy synchrotron radiation during orthogonal cutting of AISI1045 were carried out. Thereby it was possible to determine the stress state in the chip formation zone during the cutting process. As such, observations regarding the formation of built-up edges during the cutting process have been made. The formation of a built-up edge on the cutting tool is a ...

Investigating the energy consumption of the PECM process for consideration in the selection of manufacturing process chains

Swat, Martin ; Rebschläger, Andreas ; Trapp, Kirsten ; Stock, Tim ; Seliger, Günther ; Bähre, Dirk (2015)

The initial planning of manufacturing process chains provides the opportunity to sustainably influence the energy requirement for the manufacturing of industrial products by selecting the process chain with the lowest energy consumption. However, the task is still challenging due to the need for energy consumption data of manufacturing equipment. In this paper, the analysis of the energy consum...

Method to create proposals for PSS business models

Barquet, Ana Paula Bezerra ; Steingrímsson, Jón Garðar ; Seliger, Günther ; Rozenfeld, Henrique (2015)

Different authors of the product-service bundle literature agree on the fact that business models are central to implement PSS successfully. However, most of the studies about PSS business models mention its importance but do not explore which content should compose such models. Furthermore, PSS business models are explored taking into account a partial view of business model dimensions. Finall...

Role-play based assessment of IPS2-specific intellectual capital

Wewiór, Jakub W. (2015)

Due to the idea to offer costumer oriented products and services as Industrial product-service systems (IPS2) the interactions between provider and costumer become intensive. This is why IPS2 are mentioned as socio-technical systems. While having direct contact to the customer staff the provider employees must be able to fulfil cross-company interactions. The challenges of such an IPS2 relation...

Multi-objective shop floor scheduling using monitored energy data

Stock, Tim ; Seliger, Günther (2015)

Modern factories will become more and more directly connected to intermittent energy sources like solar systems or wind turbines as part of a smart grid or a self-sufficient supply. However, solar systems or wind turbines are not able to provide a continuous energy supply over a certain time period. In order to enable an effective use of these intermittent energy sources without using temporary...

Enhancing technological innovation with the implementation of a sustainable manufacturing community

Severengiz, Mustafa ; Seidel, Johannes ; Steingrímsson, Jón Gardar ; Seliger, Günther (2015)

The global challenge of sustainable value creation can be coped with by raising human awareness about it all around the world. Increasing process effectiveness and efficiency in view of shrinking natural resources, increasing competitiveness and profitability by selling functionality and service instead of physical products give strategic references for the development of the so called sustaina...

Quasi-linearization approach for the under-actuated robots

Albalasie, Ahmad ; Glodde, Arne ; Seliger, Günther ; Abu Hanieh, Ahmed (2015)

A novel technique to reduce energy consumption for industrial robots by using redundancy and under-actuated configurations is introduced in this paper. The study concentrates on kinematics including a passive axis which causes a highly nonlinear coupling of the Coriolis and centrifugal forces and high inertia coupling. The challenge of meeting the requirements of position accuracy, precision, a...

Pathways for sustainable technology development

Gausemeier, P. ; Seidel, Johannes ; Riedelsheimer, T. ; Seliger, Günther (2015)

Sustainability requires that quality of life and resource consumption are harmonized. The use of sustainable technologies fosters their harmonization. A scenario based method has been developed for identifying sustainable technology systems on different levels of development and in different areas of human living. The developed method consists of four elements: the surrounding field scenarios, ...

Gamification in factory management education

Müller, Bastian C. ; Reise, Carsten ; Seliger, Günther (2015)

Research oriented teaching in universities provides opportunities to support the student's desire to explore. A student's learning success can benefit from gamified project work, especially when students face self-guided learning processes in demanding educational activities. Gamification is defined as the use of game elements in a non-game context. Games offer the chance to improve the motivat...

Maturity model and action recommendation

Exner, Konrad ; Zimpfer, Raphael ; Stark, Rainer (2017)

The main idea in Product-Service Systems (PSS) research is to provide solutions instead of products or services. Nevertheless, PSS comprise a broad variety of characteristics from product-oriented services, to use-oriented services and result-oriented services [1]. In industrial practice all of these dimension as well as intermediate stages are evidently realized. Additionally, trending topics ...

Intelligent pattern recognition of a SLM machine process and sensor data

Uhlmann, Eckart ; Pastl Pontes, Rodrigo ; Laghmouchi, Abdelhakim ; Bergmann, André (2017)

Selective Laser Melting is an additive manufacturing process, in which the research has been increasing over the past few years to meet customer-specific requirements. Therefore, new manufacturing parameters have been monitored raising the number of sensors in the machines. Consequently, it leads to a bigger amount of data and difficulties to perform manual data analysis. In order to improve th...

Design of a test environment for planning and interaction with virtual production processes

Buchholz, Christian ; Kind, Simon ; Stark, Rainer (2017)

Rising complexity of systems combined with multi-disciplinary development and manufacturing processes necessitates new approaches of early validation of intermediate digital process and system prototypes. To develop and test these approaches, the modular digital cube test center was build. Usage of different Visualization Modules such as Powerwall, CAVE or Head Mounted Display allows immersive ...