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Dr Matthias Weiss
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The main focus of Deakin University's Stamping Research group is on the following areas:
By increasing the level of environmental and safety standards, the demand for fuel efficient and higher strength vehicles is increasing accordingly. One approach to improve fuel efficiency is to reduce the weight of vehicles, while maintaining high strength structures to protect passengers against crashes.
The hot stamping process has been one of the innovative technologies resulting in very high-strength components by heating the sheet metal up to the austenitization temperature (900-950°C), then forming and quenching the sheet metal in a water cooled die faster than a critical cooling rate (27-30°C/s) which causes the hardest steel phase (Martensite) to appear in the microstructure. Such high strength components are beneficial in anti-intrusion zones of the vehicle structure. In some vehicle parts e.g. B-Pillar, the requirements from different zones are different. A slower cooling rate is necessary to achieve softer steel phases and higher ductility (PDF-230kb).
'Blind' signal separation (BSS) techniques are commonly used to address the problems with similar nature in communications systems, biomedical applications and mechanical system. BSS techniques aim to recover unobserved (source) signals from observed mixtures and 'Blind' refers to the unavailability of knowledge about original sources and the transmission or mixing system (PDF-256kb).
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