Surface structuring
for high-strength bonding
With our novel surface structuring method - the 'Nanoscale Sculpturing' process - the surface of many metals and alloys can be structured in order to increase the mechanical stability of junctions between
- metal - polymer
- metall - metal
The METALANGELO-system
Cold bonding of metals - better than welding
The Metalangelo-system is a modular two-step joining-system designed for mobile application in ship- and car manufacturing, aerospace as well as in equipment engineering in order to replace or to complement welding.
1. Surface structuring
The base of the Metalangelo-system is given by the nanoscale-sculpturing process which is registered for patent approval. Here, an etching process causes billions of barb-structures in the micrometer range on the aluminum-surface to be joined.
2. Bonding of the components
The second step contains the actual bonding process where the initially structured aluminum-surface is glued to the component to be joined. The special developed holder system allows an exact joining on the initially structured surface which causes ideal and reproducible gluing conditions.
Cold bonding of metals with Metalangelo – the advantages in overview
1.
Area of application
curable & workhardened Al-alloys, also for non-weldable alloys like AA7175
6.
Modular system
compact and light-weight (max. 30 kg, size around 0.9 m x 0.5 m x 0.3 m)
2.
High strength and calculable bonding
~ 500 kg shear-strenght with 3.5 times safety (for an area of 6 cm²)
7.
No thermal load of components
no heat affected zone, no component distortion etc.
3.
Perfect bonding
spot-fidelity between structured surface and bonding, defined gap etc.
8.
No welding related problems
no hot cracking, no pore-formation in the weldseam
4.
Optically attractive bonding
no weldseam, no postprocessing necessary
9.
Usable at hard to access areas
like edges or over head-positions
5.
Easy to handle
due to partial automatisation no professional knowledge necessary
10.
Already lacquered or coated areas
can be processed by METALANGELO
The Metalangelo-system, which is registered for patent approval, is a collaborative development from scientists of the working group Functional Nanomaterials from Kiel University and the scientific team of the Phi-Stone AG.