Steel tools
For Aluminium high pressure die casting, different diamond coated steel tools with TiNB-intermediated layers are applied at industrial partners. The lifetime of bending tools can be increased from a few weeks to several months.
Diamond coated steel sonotrodes for the ultrasonic welding of Aluminium cables are currently also being tested by industrial partners.
The CVD diamond layer can permanently inhibit the reaction of the tool surface with liquid or solid Aluminium. The necessary strength of the steel must be adjusted after every heat treatment, which is steel specific, to avoid material failure due to insufficient fatigue strength. The CVD diamond coating of Tungsten tools is being researched as an alternative or as an addition to the high temperature intermediate layer to avoid special heat treatments.
Contact:
apl. Prof. Dr.-Ing. habil. Stefan M. RosiwalPublications:
- , , , , , :
Diamant auf Stahl gegen den Oberflächenverschleiß durch Aluminiumanhaftungen
In: Konstruktion (2017), p. IW8-IW9
ISSN: 0720-5953 - , , , :
Adhesive bonding and brazing of nanocrystalline diamond foil onto different substrate materials
In: Applied Surface Science 282 (2013), p. 335-341
ISSN: 0169-4332
DOI: 10.1016/j.apsusc.2013.05.129 - , , , :
CVD-Diamond Coating as Wear Protection for Standard Heat-Treatable Steel
International Symposium on Friction, Wear and Wear Protection 2008 (Aachen)
DOI: 10.1002/9783527628513.ch30 - , , :
Self-supporting nanocrystalline diamond foils - A new concept for crystalline diamond on any technical surface
In: Key Engineering Materials 438 (2010), p. 163-169
ISSN: 1013-9826
DOI: 10.4028/www.scientific.net/KEM.438.163 - , , , , :
Influence of surface roughness on the tribological properties of HF-CVD diamond coated heat-treatable steel
In: Wear 269 (2010), p. 811-815
ISSN: 0043-1648
DOI: 10.1016/j.wear.2010.08.009