Outokumpu Oyj

Covestro Deutschland Ag

Bayer Materialscience Ag

Bayer Intellectual Property Gmbh

Covestro Intellectual Property Gmbh & Co. Kg

Outokumpu Nirosta Gmbh

Horst Siedle Gmbh & Co. Kg

Stefan Lindner

Dirk Passmann

Wolfgang Friederichs

Thomas Hündgen

Hartmut Nefzger

Klaus Lorenz

Dirk Wegener

Thomas Fröhlich

Klaus Franken

Reinhard Strey

Thomas Sottmann

Peter Nordmann

Agnes Dominika Chalbi

Jasminko Skrlec

Elena Khazova

Verena Dahl

Jens Krause

Meike Niesten

Florian Hupka

Stephan Reiter

Paul Heinz

Stephan Schleiermacher

Petra Venner

Ernst Halder

Peter Dingler

Diana Engelen

Klaus Jurkschat

Persefoni Hilken

Axel Schmidt

Stephan Moers

Norbert Hahn

Lorenz Kramer

Dirk Steinmeister

Michael Schedler

Jochen Krautschick

Markus Schürmann

Michael Baecker

Gerrit Bradtmöller

Seyed Amin Mousavi Rizi

Thorsten Piniek

Niels Becker

Philip Ninnemann

Marc Schütze

Juergen Straeter

Christian Dömkes

Angelika Schulz

Martin Poloczek

Claire Heidecker

Gabriele Brückner

Fabian Lurz

Alexander Koelpin

Thomas Nentwig

Gerold Sept-Enzel

Marcel Hartig

Jürgen STRÄTER

Selcuk Eren

Antje Wehlau

Jurgen Strater

Thomas Frohlich

Rolf Albach

Nils Becker

The present invention relates to a motor vehicle crash box with a working direction in vehicle's longitudinal axis manufactured out of a tube which is expanded into different zones, wherein the zones are different in strength and diameter by using steel after forming a homogenous austenitic microstructure with a strain hardening effect. The present invention further relates to the manufacturing method of such a component.

Expanded tube for a motor vehicle crash box and manufacturing method for it

A method for manufacturing a component with high work hardening rate made of a material having an austenitic microstructure. A cold work hardened material for a component is heat treated to create at least one softened area with high ductility and lower strength than the initial high strength material by heat treating a part of the component material required for the softened area. Also, a use of the component.

Method for manufacturing an austenitic steel component and use of the component

A cooling system including a first sheet steel item having a first surface configured to accommodate one or more objects to be cooled, and a second surface joined to a first surface of a second sheet steel item forming a shell. The items may be joined by a weld, a rivet or a plurality thereof. At least one of the second surface of the first sheet steel item and the first surface of the second sheet steel item may be formed to produce one or more conduits for forming one or more channels, whereby said joining forms said channels for coolant in a space between the second surface of the first sheet steel item and the first surface of the second sheet steel item.

Cooling system

A resistance spot welding electrode for forming dissimilar welded lap joints in crash-relevant structural components of the automotive industry made of high-strength materials. The resistance spot welding electrode includes a cap having, at an end portion of the electrode in contact with materials to be welded together during welding, a non-axially symmetrical contact area in order to form, between the materials being welded, a weld nugget with an essentially similar non-axially symmetrical shape.

Resistance spot welding electrode and use of the electrode

A method for manufacturing a sandwich panel as a semi-finished product where at least one layer of a non-metallic material is positioned between at least two metallic layers. At least one of the metal layers is shaped into a three dimensional layer and the metal layers are material closured to each other by a tack weld on the metallic contacts between the metallic layers to enable resistance weldability of the semi-finished product in order to connect the semi-finished product to a desired combination of solutions.

Method for manufacturing a weldable metal-polymer multilayer composite

The invention relates to a method for partial hardening of a steel sheet by cold deformation, where the partial hardening of a steel is done by a cold deformation with a multi-step rolling and annealing process and in order to have a steel sheet with a homogeneous thickness steel sheet is used with at least two areas having different values in mechanical and/or physical properties in longitudinal direction of the material.

Method for partial cold deformation of steel with homogeneous thickness

The invention relates to a manufacturing method for a crash frame of a battery compartment for electric drive vehicles by using metallic sheets which are arranged on top of one another and fixed together and which form in a following step a space by using an inner active media forming process to create walls of a crash frame whereby the space works as a deformation space to protect the battery modules inside the battery compartment against an impact. The invention further relates to the use of the crash frame for a battery compartment.

Method for manufacturing a crash frame of a battery compartment for battery electric vehicles

The invention relates to the use of layer structures in the production of rotor blades for wind power plants, and to rotor blades for wind power plants.

Use of layer structures in wind power plants

The invention relates to a supporting housing for a battery compartment of electric drive vehicles by using flat metallic sheets as deep-drawn shells which are fitted into each other whereby at least one double-floor is created into which a passive and partly integrated thermal management system for cooling and heating is integrated. The invention also relates to the integration of further functionality-elements like sensors for status measurement are integrated into the 'double-floor' and connected with the battery management system.

Thermal systems for battery electric vehicles

A steel for manufacturing a component by hot forming after austenization includes in weight % less than or equal to 0.2%, carbon (C), less than or equal to 3.5% silicon (Si), 1.5-16.0% manganese (Mn), 8.0-14.0% chromium (Cr), less than or equal to 6.0% nickel (Ni), less than or equal to 1.0% nitrogen (N), less than or equal to 1.2% niobium (Nb) linked to the formula Nb=4x(C+N), less than or equal to 1.2% titanium (Ti) so that Ti=4x(C+N)+0.15, and optionally less than or equal to 2.0% molybdenum (Mo), less than or equal to 0.15% vanadium (V), less than or equal to 2.0% copper (Cu), less than 0.2% aluminum (Al), less than or equal to 0.05% boron (B), the rest being iron and evitable impurities.

Steel for manufacturing a component by hot forming and use of the component

The present invention relates to a process for producing polyurethanes having reduced aldehyde emissions using large amounts of phenolic antioxidants. The present invention further relates to the polyurethanes obtainable from this process, and to the use of such polyurethanes, for example in the interior of automobiles.

Method for reducing the aldehyde emissions of polyurethane foams

A method for joining of at least two materials, non-weldable directly to each other with thermal joining processes in a lap joint configuration includes a two step sequence including a first step to apply a thermomechanical or mechanical surface protection layer on the surface of a (stainless) steel substrate and a second step where, a thermal joining process is used to weld the sprayed layer with an applied aluminum sheet without having brittle intermetallic phases in the whole material configuration.

Resistance welding of unweldable metals with thermal sprayed interlayers

Method for joining of at least two unweldable materials, non-weldable directly to each other with thermal joining processes in a lap joint configuration, where a two step sequence is used consisting of a first step to apply a thermomechanical or mechanical surface protection layer on the surface of an unweldable material and a second step, where a thermal joining process is used to joint the sprayed layer with an applied layer sheet.

Multistage joining process with thermal sprayed layers

A method for partial hardening of an austenitic steel by utilizing during cold deformation the TWIP (Twinning Induced Plasticity), TWIP/TRIP or TRIP (Transformation Induced Plasticity) hardening effect. Cold deformation is carried out by cold rolling at least one surface of the steel with forming degree (&#x3a6;) of 5&#x2264;&#x3a6;&#x2264;60% in order to achieve in the steel at least two consecutive areas with different mechanical values in thickness, yield strength (R), tensile strength (Rm) and elongation, having a ratio (r) between the ultimate load ratio (&#x394;F) and the thickness ratio (&#x394;t) of 1.0&#x3e;r&#x3e;2.0, and in which the areas are mechanically connected to each other by a transition area having a thickness that is variable from the thickness of the first area in the deformation direction to the thickness of the second area in the deformation direction.

Method for cold deformation of an austenitic steel

The present invention relates to a method for manufacturing a component of austenitic TWIP or TRIP/TWIP steel. A flat product () is deformed by achieving at least one indentation () on at least one surface of the flat product () in order to have in the deformed product () areas of a high strength steel embedded in a matrix of a ductile material. The invention also relates to the use of the component where areas of a high strength steel embedded in a matrix of a ductile material are required in the same component.

Method for manufacturing a component of austenitic TWIP or TRIP/TWIP steel

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Willich, Germany

Stefan Lindner