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Article
Publication date: 1 June 2004

Jan‐Mark Vorstenbosch, Fabien Bourgeois, Sandra Koelemeijer Chollet and Marcel Tichem

In this paper, a flexible solution for part feeding in assembly is analysed for its suitability to feed small parts with typical dimensions between 0.5 and 5.0 mm. The…

Abstract

In this paper, a flexible solution for part feeding in assembly is analysed for its suitability to feed small parts with typical dimensions between 0.5 and 5.0 mm. The feeding concept is based on a tooling plate, which vibrates to separate and reorient the parts. A vision system is used to determine the position of parts in a correct orientation. A robot picks these parts and assembles them. The conditions for a successful reorientation of parts are studied. The influence of adhesive forces on the ability to re‐orientate is investigated. A prototype is built to determine empirically the magnitude of the adhesive forces and the influence of these forces on the feeding process.

Details

Assembly Automation, vol. 24 no. 2
Type: Research Article
ISSN: 0144-5154

Keywords

Book part
Publication date: 30 September 2021

Fabien Trémeau

To understand the logic that pushes capitalism to imperialism requires us to question one of the fundamental categories of capital: abstract labor. Often ignored by the…

Abstract

To understand the logic that pushes capitalism to imperialism requires us to question one of the fundamental categories of capital: abstract labor. Often ignored by the Marxist tradition, abstract labor is, however, by Marx’s own admission, one of its greatest discoveries. However, the different interpretations that have marked out the twentieth century have, most of the time, failed to grasp the profound originality of this concept. However, a correct understanding of abstract labor makes it possible to understand the dynamics and contradictions of capital and what distinguishes it from other forms of social organization. By showing that abstract labor is much more than a neutral economic category and that it is the general social mediator, we question the category of labor within capitalist society. It then becomes possible to identify the dynamics and contradictions of capital and why imperialism is necessary to it.

Details

Imperialism and Transitions to Socialism
Type: Book
ISBN: 978-1-80043-705-0

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