Gosmann
Gerd Gosmann, Pfaffenhofen DE
Patent application number | Description | Published |
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20100112111 | DEVICE FOR THE PRODUCTION OF MULTI-LAYER TUBES - A device for the production of multi-layer tubes (A), in particular foam core tubes, with an extruder arrangement ( | 05-06-2010 |
Stefan Gosmann, Bad Wunnenberg DE
Patent application number | Description | Published |
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20090101249 | METHOD OF MAKING A HARDENED SHEET METAL PART - In a method of making a hardened sheet metal part, a blank is cut to form a region defined by at least one cutting edge having a cutting depth which is smaller than a material thickness of the blank. The blank is subjected to a hot forming step and at least in one area is allowed to harden. After the hot forming step, the region is pushed along the cutting edge. | 04-23-2009 |
20100288402 | METHOD AND APPARATUS FOR PRODUCING SHEET METAL COMPONENTS - A method and apparatus for making sheet metal components includes heating a sheet of hardenable steel to its austenitizing temperature and hot forming the same in a hot forming tool to define a formed workpiece. The formed workpiece is held in the hot forming tool for a first holding time. The formed workpiece is then removed from the hot forming tool and immediately placed in a cooled, form holding tool and is held therein in a closed condition for a second holding time. The form holding tool may be constructed from a material that has greater heat conductivity than that of the hot forming tool. | 11-18-2010 |
Stefan Gosmann, Bad Wunneberg DE
Patent application number | Description | Published |
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20110296892 | METHOD AND APPARATUS FOR FORMING FLANGES DURING HOT-FORMING - A method for hot-forming and hardening a sheet-metal component with flanges in a cooled forming tool and an apparatus for carrying out the method are disclosed. A heated sheet-metal blank is inserted in a forming tool having a hollow form, with the sheet-metal blank projecting over the hollow form in marginal regions. The sheet-metal component formed from the sheet-metal blank is hardening of in the hollow form. A first flange having an X-bending axis is formed in a first marginal region with an auxiliary tool, and a second flange having a Y-bending axis is formed in a second marginal region with the auxiliary tool. The auxiliary tool has a plurality of dies, and the X- and Y-bending axes are not collinear and may be orthogonal to each other. Bending axes with a substantially perpendicular mutual orientation can be produced simultaneously in a single forming step. | 12-08-2011 |