Search results for "Métallurgie"
showing 10 items of 44 documents
Multi-experimental study of micro-structural and mechanical consequences of thermal cycles applied to a martensitic stainless steel « APX4 »
2010
The Direction des Applications Militaires at the Commissariat à l’Énergie Atomique, a French government-funded technological research organisation, selected a low carbon chromium rich martensitic stainless steel (APX4) to manufacture components with high yield strength and ultimate tensile strength. As such, this thesis is developed around three main axes. Firstly, the thesis summarizes the existing bibliography on this steel as well as its neighboring nuances. Secondly, it engages in a precise characterization of the material that is currently used for industrial manufacturing. Finally, this highly experimental work undertakes to observe and interpret the micro-structural and mechanical co…
The tools like evidences of metal working? : strike supports, abrasives and burnishers, sharpening tools and crushing tools
2013
Lots of lithic tools are present in Metal Ages, but few are studied. In metal production, they are especially constitued by strike supports, abrasives, burnishers, sharpening tools and crushing tools. A part of them are in metal ( strike supports) or in ceramic (abrasives, sharpening tools). Contemporary forms of these tools are too different to permit a dierct comparison. It is necessary to work on the function of the tools, deduced from the analysis of these structure. Strike supports used for metal working are easily identifiable. They allow to reproduce more or less precisely the objects that they were fabricated with. Abrasives are difficult to relate to a material, but the traces of u…
Villiers-sur-Seine
2020
The known Bronze Age settlements between the Île-de-France and Champagne are usually small, unenclosed family farms. The Villiers-sur-Seine site, however, built in a visible and accessible location that enabled control of activities on the nearby river, is completely different: the two large buildings and their annexes were protected by a system of ditches and an ostentatious palisade. Though the Seine Valley was already anthropised at the end of the 9th century BC, this habitat seems to have had a significant impact on the nearby natural environment: development of agropastoral activities due to the extension of wet meadows, episodes of land clearing for construction, cultivation of variou…
Transmission patterns in the production of Bronze Age solid- hilted swords
2023
Bronze Age swords with a bronze hilt were a highly specialised production. Casting hilts and blades and fixing them to each other require lots of precision and very specific skills. We hardly know anything about the production organisation as moulds are extremely rare, preventing us from locating workshops. However, studying swords themselves using X-ray imaging techniques allows us to reconstruct a part of the chaîne opératoire and gain insight into some aspects of the production processes. We identify three periods in the production of solid-hilted swords at the European scale:1. Experimental phase (1800-1450 BC): small-scaled productions by multiple workshops experimenting various ways o…
Une crise dans la production métallique de l’âge du Bronze final autour de 900 av. J.-C.
2023
La fin du Xe siècle av. J.-C. correspond à une subdivision mineure au sein des principaux systèmes chronologiques d’Europe continentale (transition Bronze final IIIa-IIIb ou Ha B1-B2/3). Il s’agit pourtant d’une période de rupture majeure dans les productions métalliques. L’aspect des objets en bronze, notamment ceux de la sphère personnelle (épées, parures, couteaux…), change radicalement. La riche ornementation graphique répandue jusqu’alors laisse place à des objets beaucoup plus épurés et standardisés. Ce changement rapide doit être mis en relation avec des variations au sein des systèmes de production et le développement de l’utilisation de moules permanents, auparavant réservés à la p…
Production et circulation des épées à poignée métallique de l'âge du Bronze en Europe occidentale
2022
Several regional syntheses have been published on Bronze Age solid-hilted swords, but none for France and the Benelux countries. This dissertation aims first at filling this gap by listing the swords from this region. By adding data from these pre-existing studies, it is possible to study the distribution of solid-hilted swords on a European scale. The building of an inventory is an essential condition to study the diffusion of these weapons over long distances. This must come along with models to characterise the organisation of the swords production and the ways they spread out. It requires us to question the status of the craftsmen, their organisation and their location. One of the first…
L’épée, arme et symbole. Le point de vue technique sur les fonctions des épées à poignée métallique de l’âge du Bronze
2018
The sword, which was invented during Bronze Age, is certainly the ultimate weapon, associated to war and warriors, designed to fight during combats. However, because of its technical complexity, its ostentatious aspect, especially when it is equipped with a bronze hilt, or its strong individualization for example through ornaments, swords can also be considered as symbols. This symbol can be connected to an individual, a social position, a community or to another concept we cannot precisely understand. Of course, material and immaterial aspects do not always exclude each other, and a single object can be used for both. However, a first inspection of these weapons shows that some of them cou…
Un nouveau regard sur les épées à poignée métallique de l’âge du Bronze à la lumière des rayons X
2023
Les épées de l’âge du Bronze, a fortiori celles à poignée métallique, figurent parmi les objets les mieux documentés de la période, avec un grand nombre d’études réalisées à l’échelle européenne depuis la fin du XIXe siècle. Malgré tout, l’emploi de techniques d’imagerie utilisant les rayons X, telles que la radiographie et la tomographie, permettent de porter un regard nouveau sur ces armes grâce à l’examen de leurs entrailles qui révèlent certaines techniques mises en place par les artisans pour leur production. Ces épées sont en effet des objets complexes formés de plusieurs pièces agencées à l’aide de techniques variées, pour lesquelles les artisans de l’âge du Bronze se sont montrés tr…
Were Bronze Age metalworkers skilled?: Perspectives from the study of the making of Bronze Age swords
2019
International audience; Beyond the provocation of the title, the question of ancient metalworkers’ skills, that has been recently discussed by Maikel Kuijpers for Bronze Age axes, makes perfect sense concerning Bronze Age swords, especially when equipped with a metallic hilt. These weapons are indeed almost always described as masterpieces of metalwork made by skilled and specialized craftsmen. This does not take into account the breakthroughs made since the 1960s in the study of the fabrication techniques of bronze artefacts. Even if it is true that most Bronze Age swords are looking flawless on the surface, imaging techniques such as X-ray or CT-scan enable archaeologists to have a glimps…
Bric-à-brac pour les dieux ?
2017
This book accompanies the exhibition "Bric-à-brac pour les dieux?", produced by the Lons-le-saunier museum in 2017. Some fifteen specialists present the Bronze Age and the state of knowledge concerning the practice of depositing objects in a non-funerary context: analysis of the composition of the sets, study of the forms of the deposits and the places chosen for these practices, morphometric approaches to the objects, etc. The most significant sets are presented in the form of inserts, along with the various summary texts.