Joining thermoplastic components

Patent metadata

Field	Value
Publication number	US-12043000-B2
Application number	US-202217715402-A
Country	US
Kind code	B2
Filing date	Apr 7, 2022
Priority date	Apr 7, 2022
Publication date	Jul 23, 2024
Grant date	Jul 23, 2024

Abstract

A joining method is provided during which a first thermoplastic component joint section and a second thermoplastic component joint section are arranged between first tooling and second tooling. The second thermoplastic component joint section is abutted against the first thermoplastic component joint section at a joint area. The first thermoplastic component joint section is joined to the second thermoplastic component joint section to provide a unitized thermoplastic structure. The joining includes: pressing the first thermoplastic component joint section against the second thermoplastic component joint section at the joint area between the first tooling and the second tooling using a pressure device; and heating the first thermoplastic component joint section and the second thermoplastic component joint section at the joint area using a first heater configured with the first tooling. The unitized thermoplastic structure is cooled at the joint area using a first cooler configured with the first tooling.

First claim

What is claimed is:

1. A joining method, comprising:
arranging a first thermoplastic component joint section and a second thermoplastic component joint section vertically between first tooling and second tooling, an end portion of the second thermoplastic component joint section abutted longitudinally against and vertically against an end portion of the first thermoplastic component joint section at a joint area, and the end portion of the second thermoplastic component joint section vertically overlapping and longitudinally overlapping the end portion of the first thermoplastic component joint section at the joint area;
joining the first thermoplastic component joint section to the second thermoplastic component joint section to provide a unitized thermoplastic structure, the joining comprising
pressing the first thermoplastic component joint section vertically against the second thermoplastic component joint section at the joint area between the first tooling and the second tooling using a pressure device; and
heating the first thermoplastic component joint section and the second thermoplastic component joint section at the joint area using a first heater configured with the first tooling; and

cooling the unitized thermoplastic structure at the joint area using a first cooler configured with the first tooling.

2. The joining method of claim 1 , wherein the first heater is disposed within the first tooling.

3. The joining method of claim 1 , wherein the heating further comprises heating the first thermoplastic component joint section and the second thermoplastic component joint section using a second heater configured with the second tooling.

4. The joining method of claim 1 , wherein the first cooler is disposed within the first tooling.

5. The joining method of claim 1 , wherein the cooling further comprises cooling the unitized thermoplastic structure using a second cooler configured with the second tooling.

6. The joining method of claim 1 , wherein
the pressure device includes a first press device and a second press device; and
the first tooling and the second tooling are arranged between the first press device and the second press device, the first press device engages the first tooling, and the second press device engages the second tooling.

7. The joining method of claim 1 , wherein
the first tooling includes a tooling base and a tooling insert;
the tooling base is arranged with the first heater and the first cooler; and
the tooling insert has a geometry that conforms to a geometry of an assembly of the first thermoplastic component joint section and the second thermoplastic component joint section, and the tooling insert is between and contacts the tooling base and the assembly.

8. The joining method of claim 7 , wherein
the first tooling further includes a second tooling base and a second tooling insert;
the second tooling base is adjacent the tooling base; and
the second tooling insert is adjacent the tooling insert, the second tooling insert has a geometry that conforms to a geometry of at least the first thermoplastic component joint section, and the second tooling insert is between and contacts the second tooling base and at least the first thermoplastic component joint section.

9. The joining method of claim 8 , wherein the second tooling base is configured without at least one of a heater or a cooler.

10. The joining method of claim 8 , wherein the second tooling base is configured with at least one of a second heater or a second cooler.

11. The joining method of claim 1 , wherein
the first tooling comprises a tooling base;
the tooling base is arranged with the first heater and the first cooler; and
the tooling base has a geometry that conforms to a geometry of an assembly of the first thermoplastic component joint section and the second thermoplastic component joint section, the tooling base is between a member of the pressure device and the assembly, and the tooling base contacts the assembly.

12. The joining method of claim 11 , wherein
the first tooling further comprises a second tooling base;
the second tooling base is adjacent the tooling base; and
the second tooling base has a geometry that conforms to a geometry of at least the first thermoplastic component joint section, the second tooling base is between the member of the pressure device and at least the first thermoplastic component joint section, and the second tooling base contacts at least the first thermoplastic component joint section.

13. The joining method of claim 12 , wherein the second tooling base is configured without at least one of a heater or a cooler.

14. The joining method of claim 12 , wherein the second tooling base is configured with at least one of a second heater or a second cooler.

15. The joining method of claim 1 , wherein a cross-sectional geometry of an assembly of the first thermoplastic component joint section and the second thermoplastic component joint section changes as the assembly extends along the first tooling.

16. The joining method of claim 1 , wherein a dimension of an assembly of the first thermoplastic component joint section and the second thermoplastic component joint section changes as the assembly extends along the first tooling.

17. A system for joining a first thermoplastic component to a second thermoplastic component, the system comprising:
a pressure device;
first tooling configured with a first tooling geometry that conforms to a first side geometry of an assembly of the first thermoplastic component and the second thermoplastic component, the first tooling including a first surface configured to abut against the first thermoplastic component and the second thermoplastic component, and the first tooling comprises a first heater and a first cooler; and
second tooling configured with a second tooling geometry that conforms to a second side geometry of the assembly, the second tooling including a second surface configured to abut against the first thermoplastic component and the second thermoplastic component, and the second surface longitudinally overlapping and vertically opposite the first surface, wherein one of the first surface and the second surface comprises a concave surface, and the other one of the first surface and the second surface comprises a convex surface adapted to project vertically into a groove formed by the concave surface;
the system configured to join a first joint section of the first thermoplastic component to a second joint section of the second thermoplastic component to provide a unitized thermoplastic structure, wherein during the joining the system is configured to
press the first joint section of the first thermoplastic component vertically against the second joint section of the second thermoplastic component between the first tooling and the second tooling using the pressure device; and
heat the first joint section of the first thermoplastic component and the second joint section of the second thermoplastic component using the first heater; and

the system further configured to cool the unitized thermoplastic structure using the first cooler.

18. The system of claim 17 , wherein
the first tooling includes a tooling base and a tooling insert;
the tooling base includes the first heater and the first cooler; and
the tooling insert provides the first tooling with the geometry that conforms to the first side geometry of the assembly, and the tooling insert is configured to be between and contact the tooling base and the assembly.

19. The system of

Assignees

• Rohr Inc

Inventors

• Manten David
• Bahramshahi Noushin
• Salah Lamia
• Lunenborg Dennis
• Boer Peter
• Lohman Sarah

Classifications

• B29C73/10

  using patches sealing on the surface of the article (B29C73/14 takes precedence) · CPC title

• B29L2031/3076

  Aircrafts (blades, propellers B29L2031/08) · CPC title

• B29C66/82

  Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps · CPC title

• B29C66/73921

  characterised by the materials of both parts being thermoplastics · CPC title

• B29C66/1142

  Single butt to butt joints · CPC title