Patent application number | Description | Published |
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 |
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 |
20140048181 | Flat Steel Product and Method for Producing a Flat Steel Product - A flat steel product, intended to be formed into a component by hot press forming and having a base made of steel, onto which a metal anti-corrosion coating of a Zn or a Zn alloy is applied. A separate finishing coat is applied to at least one of the free surfaces of the flat steel product. The finishing coat includes at least one base metal compound (oxide, nitride, sulphide, sulphate, carbide, carbonate, fluoride, hydrate, hydroxide, or phosphate). Also, a method enabling the production of a flat steel product of this kind. | 02-20-2014 |
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 |
20150209840 | METHOD FOR THE SURFACE TREATMENT OF A WORKPIECE - Shown and described herein is a method for the surface treatment of workpieces, in particular of coated metal workpieces, for hot forming. In order to achieve an improved surface treatment of the workpieces, the following steps are proposed: b) partially or completely heating the workpieces to a temperature of at least Ac1, c) cleaning the workpiece surfaces of the heated workpieces with at least one pressurized air jet, d) forming the heated and cleaned workpieces, and e) cooling down the formed workpieces. | 07-30-2015 |
20160047010 | HOT-FORMING APPARATUS AND METHOD FOR PRODUCING PRESS-HARDENED SHAPED COMPONENTS FROM STEEL SHEET - The present disclosure relates to a hot-forming apparatus for producing a press-hardened shaped component from a blank, with a furnace for heating the blank and a pressing device for forming and cooling the blank heated in the furnace, wherein the hot-forming apparatus has, arranged upstream of the furnace, a preheating roll truing device with a temperature-controllable roller for straightening and preheating the blank. The invention further relates to a method for producing a press-hardened shaped component from a blank, wherein the blank is heated in a furnace and the heated blank is then formed and cooled in a pressing device, and wherein, prior to heating in the furnace, the blank is straightened and preheated by means of a temperature-controllable roller of a preheating roll truing device. | 02-18-2016 |
20160108485 | METHOD AND APPARATUS FOR HARDENING A COMPONENT OR SEMI-FINISHED PRODUCT - Example methods and apparatus for hardening a component or any semi-finished product formed from a steel workpiece that has been shaped in a shaping tool may involve introducing the component into a receiving region of a hardening tool. The hardening tool may then be closed around the component in a form-fitting manner so as to surround the component and maintain a substantially constant distance between the component and at least one induction coil integrated into the hardening tool. The induction coil of the hardening tool may then be used to heat the component. The component may then be cooled within the receiving region or by removing the component from the receiving region and exposing the component to air external to the receiving region. | 04-21-2016 |
20160108489 | TRANSPORT DEVICE AND METHOD FOR TRANSPORTING HOT AND THIN-WALLED STEEL PARTS - Disclosed is a transporting device for transporting steel parts for hot forming and/or hardening, having transporting receptacles in which the steel parts are disposed and which are specified for transporting steel parts having temperatures of more than 650° C. The invention moreover relates to a method for transporting steel parts from a device for heating the steel parts to a device for hardening, hot forming, or press hardening the steel parts, wherein the steel part in a first step in a device for heating is heated to a predetermined first temperature which is above room temperature. | 04-21-2016 |