Patent application number | Description | Published |
20080196800 | Method for Producing a Metallic Component Comprising Adjacent Sections Having Different Material Properties by Means of Press Hardening - A method for producing a metallic component (B) allows adjoining zones (Z | 08-21-2008 |
20090178740 | Device and method for the forming of blanks from high and very high strength steels - A forming tool and a method for the press-hardening and tempered forming of a blank from high and/or very high strength steels are provided, in which the blank is heated before the tempered forming and then formed hot or semi-hot in a forming tool, wherein the forming tool has means for tempering. This is achieved in that the forming tool makes precisely defined temperature guidance of the blank during forming, and in that a plurality of controllable means are provided in the forming tool for tempering the forming tool, by which a plurality of temperature zones can be tempered in the forming tool, wherein at least contact surfaces of forming tool elements used for the tempered forming are allocated to individual temperature zones. | 07-16-2009 |
20110056594 | PROCESS FOR PRODUCING A COMPONENT FROM A STEEL PRODUCT PROVIDED WITH AN AL-SI COATING AND INTERMEDIATE PRODUCT OF SUCH A PROCESS - A process for producing a component from a steel product coated with a protective Al—Si coating, and an intermediate product that arises during the course of such a process and that can be used to produce components of the type concerned here. The steel product coated with the Al—Si coating, undergoes a first heating stage in which the temperature and the duration of the heat treatment are set such that the Al—Si coating is only partially pre-alloyed with Fe from the steel product. Then, the steel product, in a second heating stage, is heated to a heating temperature, above the Ac1 temperature, at which the steel product has an at least partially austenitic structure, wherein the temperature and the duration of the second heating stage are set such that the Al—Si coating is fully alloyed with Fe from the steel product. After the steel product is heated to the heating temperature, it is shaped to form the component and the component obtained is cooled in a controlled manner, in order to obtain a martensitic structure. | 03-10-2011 |
20110219836 | METHOD FOR DETERMINING SHAPE CHANGES OF A WORKPIECE - The invention relates to a method for determining shape changes of a workpiece made of steel or a steel alloy due to forming, in which a varnish is applied to the workpiece, the workpiece is formed and then an optical shape change analysis is carried out by measuring the applied varnish. The object of providing a method for determining shape changes of a workpiece made of steel or a steel alloy, said method also being suitable for analyzing the shape change of a workpiece after hot forming, is solved according to the teaching of the present invention in that before the forming of the workpiece a varnish with an Al proportion of more than 30% by weight is applied to the workpiece, the workpiece is heated for forming to a hot forming temperature and the workpiece is cooled after or during the forming. | 09-15-2011 |
20110240179 | Method for Producing a Component Having Improved Elongation at Break Properties - The invention relates to a process for producing a component having improved elongation at break properties, in which a component ( | 10-06-2011 |
20120040205 | METHOD FOR PRODUCING A PRESS-QUENCHED METAL COMPONENT - The invention relates to a method for producing a press-hardened metal component, in which a blank ( | 02-16-2012 |
20120074733 | Method for Producing a Metal Component From A Hot-Stamped Raw Material - The invention relates to a method for producing a metal component, wherein a raw material ( | 03-29-2012 |
20120137498 | Hot Forming with Inlay Material - The invention relates to a method for hot forming a blank consisting of an aluminium or steel alloy, in which the blank is heated before forming and subsequently formed in a forming tool at a temperature of at least 150° C., and to a device for carrying out the hot forming, having a forming tool which has a punch and a die. The object of proposing an economic method for hot forming is achieved for hot forming an aluminium or steel blank by placing an insulating material onto at least one surface of the blank before forming, wherein the insulating material has a lower thermal conductivity than the blank and the forming takes place with the applied insulating material. | 06-07-2012 |
20120152410 | Method And Device for Energy-Efficient Hot Forming - The invention relates to a method for hot forming of steel parts, in particular blanks or semi-finished products of steel, in which the steel parts are heated in a furnace for at least partial austenitisation to a temperature above the Ac1 temperature and hot formed in a forming tool. The object of providing a method for hot forming of steel parts which allows an energy-efficient performance of the hot forming while at the same time reducing the cycle times for producing a hot formed component, is achieved in that the waste heat from the furnace is used for further heat treatment steps of the steel part before and/or after the at least partial austenitisation of the steel part. | 06-21-2012 |
20120186705 | Method and Device for Producing a Metal Component - The invention relates to a method for producing a metal structural component, in particular a vehicle structural component, in which a steel part is hot formed and is hardened at least over sections by contact with a tool surface, in which the steel part is during the hardening cooled in at least two partial regions at different cooling rates, so that the partial regions after the hardening differ in their microstructure, wherein the cooling rates differing from one another are produced by sections of the tool surface corresponding to the partial regions of the steel part, which differ from one another as regards their thermal conductivities. The invention also relates to a further method for producing a metal structural component, as well as a tool and a batch furnace. | 07-26-2012 |
20140311205 | Method and Forming Tool for Hot Forming and Press Hardening Workpieces of Sheet Steel, in Particular Galvanized Workpieces of Sheet Steel - A method and forming tool for hot forming and press hardening plate-shaped or preformed workpieces of sheet steel, wherein the workpiece is heated to a temperature above the austenitisation temperature and is then formed and quenched in a cooled forming tool having a punch and a female mold, wherein the female mold is coated in its drawing edge region with material in a material-uniting manner and/or is provided there with at least one insert part having a thermal conductivity at least 10 W/(m*K) lower than the thermal conductivity of the portion of the female mold adjacent to the drawing edge region and comes into contact with the workpiece when said workpiece is being hot formed and press hardened, the surface of the material having a transverse dimension within the range of 1.6 times to 10 times the positive radius of the female mold. | 10-23-2014 |