Method for producing a component from organic sheets

Patent metadata

Field	Value
Publication number	US-10357902-B2
Application number	US-201414912184-A
Country	US
Kind code	B2
Filing date	Jul 28, 2014
Priority date	Aug 16, 2013
Publication date	Jul 23, 2019
Grant date	Jul 23, 2019

Abstract

One example method for producing a component from organic sheets may comprise placing a first organic sheet and a second organic sheet next to one another to form a component preform, forming at least one overlapping joining zone by tacking the first and second organic sheets together with a connecting part in the form of a third organic sheet, transferring the component preform to a joining tool, using the joining tool to form a joined component by connecting the organic sheets through melting and compression in the overlapping joining zone, and consolidating the joined component at least in the zone of the overlapping joining zone.

First claim

The invention claimed is:

1. A method for producing a component from organic sheets, the method comprising:
positioning a first organic sheet and a second organic sheet adjacent to or against one another to form a component preform, wherein the first and the second organic sheet define organic sheet segments which are set against one another along their abutting edges, wherein the abutting edges define a joint gap;
forming at least one overlapping joining zone in which the first and second organic sheets are tacked to one another with at least one connecting part that is configured as a third organic sheet, wherein the third organic sheet defines a connecting strip in the shape of a strip or an angled profile which is arranged on one side of the joint gap and overlaps the organic sheet segments, wherein the first and second organic sheets are tacked to one another by a transfer apparatus that receives the first, second, and third organic sheets by way of at least one of needle grippers or suction grippers;
transferring the component preform to a joining tool;
using the joining tool to form a joined component by connecting the first and second organic sheets of the component preform by way of at least local melting and compression in the at least one overlapping joining zone between the first, second, and third organic sheets in a way that at least partially reshapes the component preform; and
consolidating the at least one overlapping joining zone of the joined component.

2. The method of claim 1 wherein the first and second organic sheets comprise a thermoplastic matrix having endless fibers or long fibers.

3. The method of claim 1 wherein the at least one overlapping joining zone comprises a first joining zone and a second joining zone, the method further comprising:
joining the first, second, and third organic sheets at the first joining zone; and
joining the first organic sheet, the second organic sheet, and a fourth organic sheet at the second joining zone.

4. The method of claim 1 wherein tacking the first and second organic sheets to one another comprises locally welding by at least one of rotary friction welding, contact welding, ultrasonic welding, or laser welding.

5. The method of claim 1 wherein tacking the first and second organic sheets to one another comprises using metallic clips.

6. The method of claim 1 further comprising at least one of:
introducing reinforcing material into the at least one overlapping joining zone; or
applying the reinforcing material to at least one of the first, second, or third organic sheets.

7. The method of claim 6 wherein the reinforcing material is at least one of a perforated metal sheet, one or more profiles comprising metallic or fiber-reinforced material, one or more thermoplastic molding compounds, or one or more blanks comprising fiber-reinforced plastic.

8. The method of claim 1 further comprising heating the first, second, and third organic sheets to a temperature below their respective melting points.

9. The method of claim 1 further comprising heating the first, second, and third organic sheets to a temperature above their respective melting points.

10. The method of claim 1 wherein the local melting in the at least one overlapping joining zone of the first, second, and third organic sheets results from applying heat from a hot air jet, from ultrasonic welding, from an infrared radiant heater, from an inductive heating apparatus, or from a contact heater.

11. The method of claim 1 wherein the at least local melting in the at least one overlapping joining zone comprises melting the component preform in its entirety.

12. The method of claim 1 wherein the joining tool is a pressing tool that is part of a hydraulic pressing system or part of an apparatus for local compression, wherein the pressing tool is actuated by way of hydraulic cylinders.

13. The method of claim 1 wherein consolidating the at least one overlapping joining zone of the joined component comprises cooling the first, second, and third organic sheets to a temperature below their respective melting points.

14. The method of claim 1 wherein consolidating the at least one overlapping joining zone of the joined component comprises cooling the first, second, and third organic sheets below their respective recrystallization temperatures.

15. A method for producing a component from organic sheets, the method comprising:
positioning a first organic sheet and a second organic sheet next to one another, wherein the first and the second organic sheet define organic sheet segments which are set against one another along their abutting edges, wherein the abutting edges define a joint gap;
using a transfer apparatus to tack the first and second organic sheets to one another in a joining zone with a third organic sheet, wherein the third organic sheet defines a connecting strip in the shape of a strip or an angled profile which is arranged on one side of the joint gap and overlap the organic sheet segments, wherein the transfer apparatus receives the first, second, and third organic sheets by way of at least one of needle grippers or suction grippers;
transferring the first, second, and third organic sheets to a joining tool;
using the joining tool to form a joined component by melting and compressing the first, second, and third organic sheets in the joining zone, wherein the first, second, and third organic sheets are at least partially reshaped as a result of the melting and compressing; and
consolidating the first, second, and third organic sheets in the joining zone of the joined component.

Assignees

• Thyssenkrupp Steel Europe Ag

Inventors

• Patberg Lothar
• Mayer Stefan
• Krahnert Torsten
• Hufenbach Werner
• Ladusch Enrico
• Werner Jens
• Kiessling André
• Herbig Alexander
• Kiele Jörn
• Lepper Martin

Classifications

• B62D29/043

  Superstructures (B62D25/161 takes precedence) · CPC title

• B62D25/20

  Floors or bottom sub-units {(sub-frames for mounting engine or suspensions B62D21/11; drip trays F16N31/006)} · CPC title

• B29L2031/3055

  Cars · CPC title

• B29C70/885

  with incorporated metallic wires, nets, films or plates (as lost heating elements B29C35/0272, B29C61/0625) · CPC title

• B29C66/91935

  lower than said fusion temperature · CPC title