Abstract: 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.

Abstract: 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 (?) of 5???60% in order to achieve in the steel at least two consecutive areas with different mechanical values in thickness, yield strength (Rp0.2), tensile strength (Rm) and elongation, having a ratio (r) between the ultimate load ratio (?F) and the thickness ratio (?t) of 1.0>r>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.

Abstract: An electrical measuring system of a six-port circuit includes a delay line and a arithmetic unit. In a first operating mode, an electrical signal can be on the one hand transmitted directly to a first input terminal and on the other hand via the delay line to a second input terminal of the six-port circuit. In an embodiment, the measuring system is configured such that, in the second operating mode, it does not supply a signal to the first input terminal of the six-port circuit and it supplies a reference signal to the second input terminal of the six-port circuit.

Abstract: 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.

Abstract: 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.

Abstract: An internal combustion engine for a motor vehicle included a crankshaft, at least one piston coupled to the crankshaft for performing strokes in a cylinder as a consequence of a rotation of the crankshaft. An eccentric shaft is coupled to the crankshaft and to the piston in such a manner that through it strokes of the piston are extendable. The internal combustion engine further includes a phase adjuster for adjusting a phase of the coupling of the eccentric shaft to the crankshaft and/or a stroke adjuster for adjusting strokes of the piston, in particular an extension of strokes of the piston by the eccentric shaft.

Abstract: The invention relates to a method for producing an ultra high strength material with high elongation by work hardening an essentially nickel-free austenitic material and then subjecting the material to heat treatment in the temperature range between 200° C. and <1,100° C. within a period from 10 s to 10 minutes.

Abstract: 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.

Abstract: A polyurethane foam, polyisocyanurate foam or polyurea foam is obtainable from the reaction of a mixture comprising A) a compound reactive towards isocyanate (“NCO-reactive compound”); B) a blowing agent selected from the group comprising linear, branched or cyclic C1 to C6 hydrocarbons, linear,branched or cyclic C1 to C6 fluorocarbons, N2, O2, argon and/or CO2, where the blowing agent B) is present in the supercritical or near-critical state; C) a polyisocyanate; D) an amphiphilic isocyanate; and E) optionally a surfactant and F) optionally other auxiliaries and additives. The invention further relates to the production of this polyurethane foam, where the blowing agent is emulsified in the isocyanate component containing amphiphilic isocyanate.

Abstract: A component made of metallic composite material having high corrosion resistance and scale resistance. The metallic composite material contains as a core material an uncoated hardenable steel on which surface a corrosion resistance and scaling resistance layer is provided using heat resistant stainless steel, and has a yield strength Rp0,2 of at least 1000 MPa and a tensile strength Rm of at least 1500 MPa for the core material and a critical scaling resistance temperature in air for the layer material is at least 850° C.

Abstract: The invention relates to a method for manufacturing a welded component, where at least one material piece is positioned between metal pieces to be welded together. At least one protrusion (5, 13, 23, 33, 43) is achieved to at least one of the metal pieces (3, 4; 11, 12; 21, 22; 31, 32; 41, 42) to be welded together, and at least one opening (2, 14, 24, 34, 44) is achieved to at least one material piece (1, 15, 25, 35, 45) which is positioned between the metal pieces (3, 4; 11, 12; 21, 22; 31, 32; 41, 42) to be welded and isolated (16, 17; 26; 36) from the metal pieces to be welded. At least one part of the protrusion (5, 13, 23, 33, 43) in one of those metal pieces to be welded together is taken through the opening (2, 14, 24, 34, 44) in order to have mechanical contact through the upper end of the protrusion (5, 13, 23, 33, 43) with the second metal piece to be welded.

Abstract: The present invention relates to a method for manufacturing a component of austenitic TWIP or TRIP/TWIP steel. A flat product (1) is deformed by achieving at least one indentation (16) on at least one surface of the flat product (1) in order to have in the deformed product (5) 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.

Abstract: The present invention relates to a process for producing flexible polyurethane foam materials, in particular hot-moulded foams, by reaction of an isocyanate component with a component reactive to isocyanates, wherein the constituents of the component reactive to isocyanates include a polyether polyol and a polyether carbonate polyol. The invention further relates to flexible polyurethane foams produced by the process according to the invention.

Abstract: The invention relates to a method for manufacturing a component made of austenitic manganese alloyed steel using transformation induced plasticity. The component is deformed so that the component has an essentially same thickness of 0.5-2 millimeter in each region of the component, and the component has at least two regions having different mechanical property values.

Abstract: An electrical measuring system of a six-port circuit includes a delay line and a arithmetic unit. In a first operating mode, an electrical signal can be on the one hand transmitted directly to a first input terminal and on the other hand via the delay line to a second input terminal of the six-port circuit. In an embodiment, the measuring system is configured such that, in the second operating mode, it does not supply a signal to the first input terminal of the six-port circuit and it supplies a reference signal to the second input terminal of the six-port circuit.

Abstract: The invention relates to a method of welding of at least two metal-based materials (5, 7), non-weldable directly to each other with resistance welding. At least one spacer (6) is joined by welding on at least one of the two surfaces of a material (5) in every interstice between two surfaces of materials to be welded. The welded spacer (6) is utilized so that resistance welding is focused to the surface of the material (5) with the spacer (6) to melt at least one spacer (6) located on the heat affecting zone in order to achieve a weld between the metal-based materials (5, 7).

Abstract: 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.

Abstract: The invention relates to 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 in direct mechanical contact to enable resistance weldability of the semi-finished product in order to connect the semi-finished product to a desired combination of solutions in a subsequent manufacturing process.

Abstract: The invention relates to a method for producing a polyurethane foam, wherein a mixture having the following is discharged from a mixing head through a discharge line: A) a component reactive toward isocyanates; B) a surfactant component; C) a blowing agent component selected from the group comprising linear, branched, or cyclic C1 to C6 hydrocarbons, linear, branched, or cyclic C1 to C6 fluorocarbons, N2, O2, argon, and/or CO2, wherein the blowing agent C) is present in the supercritical or near-critical state; and D) a polyisocyanate component. The component A) has a hydroxyl value=100 mg KOH/g and =1000 mg KOH/g. The blowing agent component C) is present at least partially in the form of an emulsion, and means provided with an opening or several openings are arranged in the discharge line in order to increase the flow resistance during the discharge of the mixture comprising A), B), C), and D), wherein the cross-sectional area of the opening or the sum of the cross-sectional areas of all openings is =0.

Abstract: The present invention relates to sheet-form fiber composite components which are obtainable by impregnating fibers with a reactive resin mixture comprising polyisocyanates, polyepoxides, polyols and optionally additives, and to a process for the production thereof.