Non-Vacuum Electron Beam Welding

Dilthey, Ulrich; Gumenyuk, Andrey; Masny, H.

doi:10.4028/www.scientific.net/amr.6-8.151

Cited by 5 publications

(1 citation statement)

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“…In fact, non-vacuum electron beam welding has been pioneered in the automotive industry. 32,33 Here, the electron beam, passing through several pressure chambers, is gradually brought to atmospheric pressure. Certainly, as the electrons leave the nozzle, they collide with air particles and are deflected; therefore, the distance between the nozzle and the workpiece should be limited so as not to compromise positioning tolerances.…”

Section: High-energy Beam Weldingmentioning

confidence: 99%

Innovative joining technologies for lightweight material vehicles

Papa,

Panico,

Carandente

et al. 2024

Proceedings of the Institution of Mechanical Engineers, Part C:

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The transport industry is one of the most important for society and its economic growth. In Europe, this is especially true for road transport, which is an essential pillar for employment, trade, and economic development. The challenge is to minimize energy and cost and maximize efficiency while ensuring comfort and safety. This is the driving force behind technological progress that with social changes (such as, changing consumer preferences, greater environmental awareness) and political changes is revolutionizing the way people and goods move. Nevertheless, the selection of lightweight materials is negligible; it could involve new manufacturing technologies and joining techniques. Jaguar Land Rover (JLR) has been one of the prominent car producers employing aluminum alloys since 2003. A typical JLR monocoque is characterized by 90% aluminum stampings components made of 5xxx and 6xxx series aluminum alloys. Audi Space Frame (ASF) represents an alternative interpretation of improved lightweight frame architecture, and it is characterized by aluminum for more than 80% with the residual parts in CFRP used for rear panels, tunnel and the components useful to higher torsional stiffness. A 30% weight decrease is reached with respect to traditional steel corresponding elements. This review shows an overview of the challenges and opportunities for automotive body structures in the coming years while maintaining the goal of reducing mass and improving sustainability without increasing costs and impacting safety. This manuscript first evaluates how we can reduce mass in vehicles minimizing the carbon footprint and developing recyclable structures. The potential of new materials will be shown in light of the design constraints and the choice of technology used. The final remarks will discuss opportunities for engineering innovation dictated by this period of great changes and needs.

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Section: High-energy Beam Weldingmentioning

confidence: 99%

Innovative joining technologies for lightweight material vehicles

Papa,

Panico,

Carandente

et al. 2024

Proceedings of the Institution of Mechanical Engineers, Part C:

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Elektronenstrahlschweißen an Atmosphäre – von der Entwicklung bis zum industriellen Einsatz

Masny¹

2007

Materialwissenschaft Werkst

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Bedingt durch die zunehmende Standardisierung in vielen Bereichen der industriellen Fertigung, die Ressourcenschonung und dadurch der Zwang zum Leichtbau sowie die rasche Entwicklung auf dem Werkstoffsektor, werden an die Fügetechniken immer komplexere Aufgaben herangetragen. Dies betrifft sowohl das Fügeverfah-ren selbst, das den zu verbindenden Grundwerkstoffen in metallurgischer Hinsicht gerecht werden muss, als auch seine Wirtschaftlichkeit. In diesem Zusammenhang kommt dem Elektronenstrahlschweißen an Atmosphäre -NV-EBW -als Verbindungstechnik eine immer größere Bedeutung und steigendes Interesse seitens der Industrie zu. Das NV-EBW verbindet die vielen bekannten Vorteile des Elektronenstrahlschweißens im Vakuum mit der Möglich-keit unter normalem Umgebungsdruck zu arbeiten. Mit einem Anlagenwirkungsgrad von über 50 % und den sehr hohen erreichbaren Schweißgeschwindigkeiten von bis zu 60 m/min bei Aluminiumwerkstoffen ist der Elektronenstrahl an Atmosphäre ein effizientes und wirtschaftliches Werkzeug in der Schweißtechnik.Im ISF wird seit Jahren unter der Leitung von Professor U. Dilthey an der NV-EBW Technologie in engem Kontakt mit industriellen Partnern geforscht. Dabei wurden wesentliche Beiträge zur Entwicklung eines rotationssymmetrischen Druckstufensystems sowie zur Erprobung und Optimierungen des Verfahrens hinsichtlich der jeweiligen Schweißaufgaben geleistet.Schlüsselworte: Elektronenstrahlschweißen, NV-EBW, Hochleistungsfügeverfahren, Strahlvermessung, Attributable to the increasing degree of standardisation in many fields of industrial manufacturing, the saving of resources and thus the demand for light weight constructions and also the rapid development on the material sector have made joining tasks increasingly complex. This involves the joining method which must meet the metallurgical demands of the base materials to be welded and also the method's profitability. In this connection, electron beam welding in atmosphere -NV-EBW -as a joining method is getting more and more important and is, from the side of the industry, becoming increasingly popular. NV-EBW combines the many, wellknown advantages of electron beam welding in vacuum with the possibility to work under normal ambient pressure. With an equipment efficiency of more than 50 % and very high, achievable welding speeds of up to 60 m/min for aluminium materials, the electron beam in atmosphere is an efficient and profitable tool for welding.Under the direction of Professor U. Dilthey, the ISF has for many years and in close contact with industrial partners carried out research work in the field of the NV-EBW technology. At that, elementary contribution to the development of rotationally-symmetrical orifice assemblies and also to the testing and optimization of the method with regard to respective welding tasks has been carried out.

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