Topic
Material flow
About: Material flow is a research topic. Over the lifetime, 3050 publications have been published within this topic receiving 36844 citations. The topic is also known as: material stream.
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01 Jan 2004
TL;DR: The usefulness of creating and maintaining material flow accounts for developing sound public policy, evaluates the technical basis for material flows analysis, assesses the current state of material flows information, and discusses who should have institutional responsibility for collecting, maintaining, and providing access to additional data for material flow account.
Abstract: The rising population and industrial growth place increasing strains on a variety of material and energy resources. Understanding how to make the most economically and environmentally efficient use of materials will require an understanding of the flow of materials from the time a material is extracted through processing, manufacturing, use, and its ultimate destination as a waste or reusable resource. Materials Count examines the usefulness of creating and maintaining material flow accounts for developing sound public policy, evaluates the technical basis for material flows analysis, assesses the current state of material flows information, and discusses who should have institutional responsibility for collecting, maintaining, and providing access to additional data for material flow accounts.
33 citations
TL;DR: In this paper, the impact of welding parameters on material mixing of AA 7075-T6 and AA 2024-T3 (3 mm thickness) dissimilar butt welds was evaluated.
Abstract: The main goal of this investigation is to study the flow pattern and mixing which take place during dissimilar friction stir welding (FSW). Aspects such as the origin of onion rings and development of welding defects are considered. An evaluation of the impact of welding parameters (rotational speed) on material mixing of AA 7075-T6 and AA 2024-T3 (3 mm thickness) dissimilar butt welds was performed. The 'stop action' technique has been employed in order to acquire a close snap shot of the flow and mixing in one of the samples which showed limited mixing but optimal mechanical performance and surface condition. A non-stable rotational flow inside the threads has been identified in this sample due to the formation of a cavity on the rear of the pin. This fact gave rise to characteristic bands in the longitudinal section but it was not enough for developing an onion ring-like mixing pattern.
33 citations
TL;DR: In this article, a simulation model for material flows and economic exchanges within the U.S. automotive material life cycle chain is presented to examine the effect of future changes in vehicle material composition on the automotive recycling infrastructure.
33 citations
TL;DR: In this article, a three-dimensional computational fluid dynamics code, FLUENT, was used to model the heat and material flow during FSW of SS304 using the polycrystalline cubic boron nitride pin.
33 citations
TL;DR: In this paper, double shoulder friction stir welding of AZ91 magnesium alloy is numerically modeled based on the Eulerian method using the ABAQUS software and the material flow in the integrated form is demonstrated properly and the shoulder driven and pin driven zones are predicted very well.
33 citations