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Author Hopmann, Christian ♦ Spekowius, Marcel ♦ Wipperfürth, Jens ♦ Schöngart, Maximilian
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword ENGINEERING ♦ CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ♦ CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY ♦ ALGORITHMS ♦ DESIGN ♦ IMAGE PROCESSING ♦ INJECTION ♦ MANUFACTURING ♦ MOLDING ♦ PHASE DIAGRAMS ♦ PLASTICS ♦ SENSORS ♦ SOLIDIFICATION ♦ TEMPERATURE DISTRIBUTION ♦ TEMPERATURE MEASUREMENT ♦ ULTRASONIC WAVES
Abstract Current models of the injection moulding process insufficiently consider the thermal interactions between melt, solidified material and the mould. A detailed description requires a deep understanding of the underlying processes and a precise observation of the temperature. Because todays measurement concepts do not allow a non-invasive analysis it is necessary to find new measurement techniques for temperature measurements during the manufacturing process. In this work we present the idea of a set up for a tomographic ultrasound measurement of the temperature field inside a plastics melt. The goal is to identify a concept that can be installed on a specialized mould for the injection moulding process. The challenges are discussed and the design of a prototype is shown. Special attention is given to the spatial arrangement of the sensors. Besides the design of a measurement set up a reconstruction strategy for the ultrasound signals is required. We present an approach in which an image processing algorithm can be used to calculate a temperature distribution from the ultrasound scans. We discuss a reconstruction strategy in which the ultrasound signals are converted into a spartial temperature distribution by using pvT curves that are obtained by dilatometer measurements.
ISSN 0094243X
Educational Use Research
Learning Resource Type Article
Publisher Date 2016-03-09
Publisher Place United States
Volume Number 1713
Issue Number 1


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