Wickeder Westfalenstahl GmbH

Wickede, Germany

Wickeder Westfalenstahl GmbH

Wickede, Germany
SEARCH FILTERS
Time filter
Source Type

Bretz W.,Wickeder Westfalenstahl GmbH
7th International Symposium on Superalloy 718 and Derivatives 2010 | Year: 2010

Wickeder Westfalenstahl GmbH is cladding stainless steels and Ni-based alloys on different core materials. Strips are used for welded tubes. Final applications are tube heat exchangers and heating elements for example. Investigations have been carried out on clad 304 stainless, Alloy 316 Ti, Alloy 625, Alloy 800, Alloy 840 and Alloy 904L using Laser, Tig and Microplasma welding technique. Wall thicknesses of tubes are between 0.008″ to 0.060″. Filler metals, when used, are Alloy 309L, Alloy 625, Alloy 82 and Alloy 80/20. Discussion of results includes metallography, hardness, tensile testing, corrosion testing, chemical analysis by EDX, segregation behaviour and crack origin by SEM as well as Schaeffler diagram. Comparisons between different welding processes will be discussed. A new technology of a welding-soldering process, which results in identical root chemical composition is reviewed.


Dziallach S.,RWTH Aachen | Bleck W.,RWTH Aachen | Kohler M.,Wickeder Westfalenstahl GmbH
Advanced Engineering Materials | Year: 2010

This work presents adhesion properties of roll-bonded and heat treated titanium-stainless steel couples determined by means of tensile shear tests and peeling tests. The developed testing methods will be described and the applicability on material couples will be discussed. The determined adhesion forces and resistances were correlated with the interface microstructure of the material couple. Hence, the optimum annealing conditions for maximum adhesion force can be determined. The determined adhesion properties in this paper and the already published results to the diffusion behavior and mechanical properties give important measuring data to make a final evaluation of the material couple with regard to a technical application. This work presents adhesion properties of roll-bonded and heat treated titanium-stainless steel couples determined by means of tensile shear tests and peeling tests. The developed testing methods will be described and the applicability on material couples will be discussed. The determined adhesion forces and resistances were correlated with the interface microstructure of the material couple. Hence, the optimum annealing conditions for maximum adhesion force can be determined. The determined adhesion properties in this paper and the already published results to the diffusion behavior and mechanical properties give important measuring data to make a final evaluation of the material couple with regard to a technical application. © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.


Ostafin M.,Wickeder Westfalenstahl GmbH | Balkenhol M.,Wickeder Westfalenstahl GmbH | Erlemeyer J.,Wickeder Westfalenstahl GmbH | Kohler M.,Wickeder Westfalenstahl GmbH
Materialwissenschaft und Werkstofftechnik | Year: 2010

Aluminium clad steel strip FERAN®, produced by cold roll bonding, combines the forming and mechanical properties of low carbon, unalloyed deep drawing steel with the surface properties of Aluminium. Self-brazing Aluminium clad steel is a material with the additional property that it can be brazed just like Aluminium brazing strip. The steel core provides for increased strength, especially at higher temperatures, and erosion resistance. Samples of self-brazing Aluminium clad steel strip have been manufactured on a cladding pilot plant. Brazing tests with a NOCOLOK® fluxing agent at various temperatures and times were performed. The formed joints were investigated metallographically and by SEM/EDX. Copyright © 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.


Patent
Wickeder Westfalenstahl Gmbh | Date: 2013-01-14

Coins, medals or casino tokens have a first side, a second side, at least one first layer made of a first material and at least one second layer made of a second material, wherein the first layer is between 10 m and 90 m, preferably 20 m thick. A method produces the coin wherein the coin is produced, more particularly punched, from a clad sheet-shaped composite material. A further method produces the coin wherein the coin is formed from a ring and a core arranged inside the ring. The core and the ring are punched from a clad sheet-shaped composite material and subsequently the core is inserted rotated into the ring and is fixed therein.

Loading Wickeder Westfalenstahl GmbH collaborators
Loading Wickeder Westfalenstahl GmbH collaborators