Innovative Leichtbau‐Fügetechnologien. (4th February 2013)

• Record Type: Journal Article
• Authors: Emrich, Stefan; Kopnarski, Michael
• Is Part Of: Vakuum in Forschung und Praxis. Volume 25:Number 1(2013)
• Page Start: 27
• Page End: 33
• Publication Date: 2013-02-04
• Subjects: Vacuum technology -- Periodicals; 621.55
• DOI: 10.1002/vipr.201300510
• Languages: English
• ISSNs: 0947-076X

Abstract

<abstract abstract-type="main" xml:lang="en"> <title> <x xml:space="preserve">Abstract</x> </title> <p>Using examples from the adhesive bonding and ultrasonic welding technique shows how various methods of vacuum‐assisted analysis can contribute to explain joining mechanisms and derive optimization potentials for strength and durability of composites. Employing Time‐of‐Flight Secondary Ion Mass Spectrometry (ToF‐SIMS) to characterize epoxy‐adhesives, locally resolved and quantitative structural informa‐tions can be achieved. Multivariate data analysis methods prove to be very helpful here.</p> <p>Analytical investigations with high spatial resolution at the interface of ultrasonic welded aluminium joints provide structural and chemical data and allow the characterization of the bonding zone in detail. Thus the physical and chemical processes occurred during the welding process can be reconstruct.</p> <p>The increase of strength and longterm durability of ultrasonic‐ or induction welded hybrid joints (aluminium and carbon‐fibre reinforced thermoplastics) can be attributed to micromechanical interlocking of the CF‐matrixpolymer with Al‐oxide‐layer.</p> </abstract>