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The ReBek project is comprised of two sub projects (SP). SP 1 aims at developing alternative eradication methods in the form of novel weevil and bark beetle traps that use little to no pesticides as well as mass trapping lures, which are able to locally and temporarily reduce the population densities of the target insects in a way that secures the economic and ecological objectives of the forest owners. The focus of SP 2 is the development of close-to-nature, pesticide-free regulation methods for bark beetles. Non-habitat volatiles will be identified by volatile suctions and testing the recorded substances in the field using traps and trap logs. These volatiles will allow for the chemical masking of objects that are at risk of bark beetle colonization and will pretend an unsuitable habitat for the target species.
dataset masnuscript "Evaluation of Trap Type and Attractant Composition for Potential Mass Trapping of Hylobius abietis"
Lightweight materials such as aluminum alloys have an important role to play in weight reduction. However, their limited formability at room temperature poses a major challenge and restricts their use. Significant improvements in formability can be achieved by heat-assisted forming processes. However, this improvement in formability is generally associated with a change in microstructure that leads to a reduction in strength. Alternatively, improved ductility and formability can be achieved at cryogenic temperatures without the disadvantages of warm forming processes. In this project, the focus is on developing a new process for forming aluminum alloys at cryogenic temperatures without active cooling. For this purpose, macro-structured tools are used to reduce the contact area between the tool and the blank. The aim is to minimize the heat flux to the blank to maintain low temperatures during forming. This is to take advantage of the improved formability of aluminum alloys at cryogenic temperatures and thus extend the process window for deep drawing of aluminum alloys. This data collection contains material characterization data required for numerical process modelling. The focus is on the characterization of thermal and mechanical properties at blank temperatures.
Lightweight materials such as aluminum alloys have an important role to play in weight reduction. However, their limited formability at room temperature poses a major challenge and restricts their use. Significant improvements in formability can be achieved by heat-assisted forming processes. However, this improvement in formability is generally associated with a change in microstructure that leads to a reduction in strength. Alternatively, improved ductility and formability can be achieved at cryogenic temperatures without the disadvantages of warm forming processes. In this project, the focus is on developing a new process for forming aluminum alloys at cryogenic temperatures without active cooling. For this purpose, macro-structured tools are used to reduce the contact area between the tool and the blank. The aim is to minimize the heat flux to the blank to maintain low temperatures during forming. This is to take advantage of the improved formability of aluminum alloys at cryogenic temperatures and thus extend the process window for deep drawing of aluminum alloys.