Flat semi-finished product made of metal and methods for producing same as well as components thereof

Abstract

The invention relates, in a first aspect, to a flat semi-finished product made of metal (1), wherein said semi-finished product comprises at least out structured section (2) and at least one non-structured section, wherein said semi-finished product has non-structured edge sections (4) and exhibits a high strength. The semi-finished product made of metal (1) according to the invention is characterized in that it is designed as one piece and predetermined sections (2) are structured and predetermined sections are non-structured, wherein at least one non-structured section (4) is designed as a connecting region for positive or non-positive connection or for connecting by bonding. Furthermore, methods for producing the semi-finished products according to the invention are provided.

Claims

1. A flat semi-finished product, comprising a metal structure having a top and a bottom, wherein said metal structure includes at least one structured section exhibiting at least one of beaded, cup-shaped or coarse-grain stampings formed in at least one of said top and said bottom of said metal structure, wherein if more than one structured section is present then said sections are differently stamped sections where necessary, at least one non-structured section configured as the connecting region for a substance-bonded connection, a positive connection, or a non-positive connection, and non-structured edge sections at one or more edges of said metal structure, wherein at least one of said at least one non-structured section and said non-structured edge sections surrounds at least one preformed notch which passes through said metal structure and extends from said top to said bottom of said metal structure, wherein said notch is not in said at least one structured section, and wherein said at least one preformed notch is formed in a depression adjacent to at least one of said non-structured section and said non-structured edge sections.

2. The flat semi-finished product as claimed in claim 1, wherein said semi-finished product is made purely of zinc, brass, copper, aluminum, steel and high-grade steel or of a combination of these.

3. The flat semi-finished product as claimed in claim 1, wherein said semi-finished product is manufactured in plate form or as rolled goods.

4. The flat semi-finished product as claimed in claim 1, wherein the structured sections exhibit beaded, cup-shaped and/or coarse-grain stampings, which are stamped in different directions, both horizontally and vertically, where necessary.

5. The flat semi-finished product as claimed in claim 1, wherein at least two structured sections exist and these exhibit at least two structured sections with different structures or stampings.

6. The flat semi-finished product as claimed in claim 1, wherein all edge sections are non-structured.

7. The flat semi-finished product as claimed in claim 1, wherein said flat semi-finished product is one-piece.

8. The flat semi-finished product as claimed claim 1, wherein said flat semi-finished product is configured as a guard plate, heat-insulation or proofing plate for a vehicle.

9. A method for producing the flat semi-finished product as claimed in claim 1, comprising the single-stage step involving the pressing or stamping of a metal sheet with predetermined structured and non-structured sections using suitable tools for the production of a flat semi-finished product made of metal.

10. The method as claimed in claim 9, wherein the flat semi-finished product is produced by rotation stamping using counter-rotating rollers.

11. A component made from the flat semi-finished product as claimed in claim 1 or producible according to the method as claimed in claim 9.

12. The component as claimed in claim 11, wherein said component is configured as a guard plate, heat-insulation or proofing plate for a vehicle.

13. A guard plate, heat-insulation and/or proofing plate comprising the semi-finished product as claimed in claim 1 or the component as claimed in claim 11.

Description

(1) The invention is further explained below with reference to the figures.

(2) FIG. 1 shows a detail of positively-connected semi-finished products made of metal 1 according to the invention, with structured sections 2 and non-structured edge sections 4. The flat one-piece semi-finished products according to the invention allow a positive connection of these semi-finished products through the non-structured sections of the edge sections 4 produced in the one-stage forming method. The structured sections 2 allow optimized heat flow and stability.

(3) FIG. 2 shows an embodiment according to the invention of the flat semi-finished product 1 with different structured sections (2.1, 2.2) and non-structured sections 3 and 4. The non-structured section 3 has a notch 5. With the help of this notch 5 in the non-structured section 3, a non-positive connection of the semi-finished product according to the invention to another component, for example, is possible. The structured section 2 is divided into two different sections 2.1 and 2.2. The existing structured sections differ in this case due to the different heights of the stampings. The non-structured section 3 is configured as a depression, in order to facilitate a connection to another component through a corresponding connecting means, such as via screw connections, which are conducted through the notch 5. The edge section 4 is likewise configured as a non-structured section, in order to allow a connection to another component. A mechanical connection by riveting, clinching, screwing, for example, is possible via the non-structured sections but also by welding or bonding.

(4) FIG. 3 shows a detail of a flat component 1 according to the invention, wherein these structured sections 2.1, 2.2, 2.3 are shown with different heights and different directions. In other words, the sections show on the one hand stampings of different height, sections 2.1, 2.2 and 2.3. Furthermore, the stampings in section 2.1 differ from those in sections 2.2 and 2.3 in that the center axis of the stampings in section 2.1 is inclined, while the center axis in sections 2.2 and 2.3 is perpendicular. The embodiment of the different structured sections enables the heat flow to be optimized. The different structures furthermore allow the formation of different strengths. With the help of the method according to the invention, the flat semi-finished products according to the invention can be produced in one forming step. Further processing steps are thereby avoided, particularly those steps in which the structured sections have to be flattened again, leading to further stress on the material. A lasting improvement in material properties is thereby achieved in the connecting and securing regions.

REFERENCE NUMBER LIST

(5) 1: Flat semi-finished product 2, 2.1, 2.2, 2.3: Structured sections 3: Non-structured section 4: Edge section 5: Notch