초록 ▼

A process for producing a metallic layer includes forming structures at least in subregions of the metallic layer. The structures have corrugation troughs and corrugation peaks, an upper bearing surface formed at least in part from the peaks, and a lower bearing surface formed at least in part from

A process for producing a metallic layer includes forming structures at least in subregions of the metallic layer. The structures have corrugation troughs and corrugation peaks, an upper bearing surface formed at least in part from the peaks, and a lower bearing surface formed at least in part from the troughs. The metallic layer is formed with at least a first region having a first thickness and a second region having a second thickness, different than the first thickness. The structures are formed, in longitudinal direction, independently of the thickness, with at least one of the upper and lower bearing surfaces in the regions being substantially aligned in longitudinal direction in vicinity of at least one of the peaks and the troughs. A metallic layer with regions of varying material thickness and a honeycomb body produced at least partly from such metallic layers, are also provided.

대표청구항 ▼

We claim: 1. A process for producing a metallic layer, which comprises: forming structures at least in subregions of the metallic layer, the structures having corrugation troughs and corrugation peaks, an upper bearing surface formed at least in part from the corrugation peaks, and a lower bearing

We claim: 1. A process for producing a metallic layer, which comprises: forming structures at least in subregions of the metallic layer, the structures having corrugation troughs and corrugation peaks, an upper bearing surface formed at least in part from the corrugation peaks, and a lower bearing surface formed at least in part from the corrugation troughs; forming the metallic layer with at least a first region having a first material thickness and a second region having a second material thickness being different than the first material thickness; and forming the structures, in longitudinal direction, independently of the respective material thickness, with the upper bearing surface and the lower bearing surface in the first and second regions being substantially aligned in longitudinal direction in vicinity of the corrugation peaks and the corrugation troughs respectively. 2. The process according to claim 1, wherein one of the first and second regions having a smaller material thickness is at least partially structured, and the other of the first and second regions is substantially smooth. 3. The process according to claim 1, wherein the first region and the second region have structures. 4. The process according to claim 1, which further comprises forming at least one of the first and second regions from a material through which a fluid can at least partly flow. 5. The process according to claim 4, wherein the material through which a fluid can at least partly flow is a metallic fiber material. 6. The process according to claim 1, which further comprises folding over the metallic layer in at least one of the first and second regions. 7. The process according to claim 1, which further comprises at least partly forming the structures by stamping. 8. The process according to claim 7, which further comprises forming the structures by corrugating and then stamping. 9. The process according to claim 1, which further comprises forming the structures by stepped corrugating. 10. The process according to claim 1, which further comprises forming the structures by corrugating at least one shape selected from the group consisting of sinusoidal, square and triangular corrugations. 11. The process according to claim 10, which further comprises corrugating different shapes in the first region and in the second region. 12. The process according to claim 1, which further comprises at least partially overlapping the first region and the second region in an overlap region. 13. The process according to claim 12, which further comprises connecting the first region and the second region to one another in the overlap region by a joining technique. 14. The process according to claim 13, which further comprises carrying out the joining technique as a thermal joining process selected from the group consisting of welding and brazing. 15. The process according to claim 13, which further comprises carrying out the joining technique as a mechanical joining process. 16. The process according to claim 13, which further comprises carrying out the joining technique by riveting. 17. A metallic layer, comprising: structures disposed at least in subregions, said structures having corrugation peaks and corrugation troughs, said corrugation peaks at least in part forming an upper bearing surface and said corrugation troughs at least in part forming a lower bearing surface; and at least a first region having a first material thickness and a second region having a second material thickness being different than said first material thickness; said structures, independently of said respective material thickness, in said first and second regions, having the upper bearing surface and the lower bearing surface substantially aligned in longitudinal direction in vicinity of said corrugation peaks and said corrugation troughs respectively. 18. The metallic layer according to claim 17, wherein one of said first and second regions having a smaller material thickness is at least partially structured, and the other of said first and second regions is substantially smooth. 19. The metallic layer according to claim 17, wherein said first and second regions have said structures. 20. The metallic layer according to claim 17, which further comprises at least one folded over end region. 21. The metallic layer according to claim 17, wherein at least one of said first and second regions is formed of a material through which a fluid can at least partly flow. 22. The metallic layer according to claim 17, wherein said material through which a fluid can at least partly flow is a metallic fiber material. 23. The metallic layer according to claim 17, wherein said first and second regions at least partially overlap one another in an overlap region. 24. The metallic layer according to claim 23, wherein said first and second regions are connected to one another in said overlap region by a thermal joining process. 25. The metallic layer according to claim 24, wherein said thermal joining process is at least one process selected from the group consisting of welding, roll seam welding and brazing. 26. The metallic layer according to claim 23, wherein said first and second regions are connected to one another in said overlap region by a mechanical joining process. 27. The metallic layer according to claim 26, wherein said mechanical joining process is riveting. 28. The metallic layer according to claim 17, wherein said structures are at least partially stamped. 29. The metallic layer according to claim 28, wherein said structures are formed by corrugating and then stamping. 30. The metallic layer according to claim 17, wherein said structures are formed by stepped corrugating. 31. The metallic layer according to claim 17, wherein said corrugations have at least one shape selected from the group consisting of sinusoidal, triangular and square. 32. The metallic layer according to claim 31, wherein said corrugations have different structures in said first region and in said second region. 33. A honeycomb body, comprising: metallic layers produced by the process according to claim 1. 34. A honeycomb body, comprising: metallic layers produced according to claim 17.