Self-clamping self-curing bond method

Patent metadata

Field	Value
Publication number	US-10919233-B2
Application number	US-201715400415-A
Country	US
Kind code	B2
Filing date	Jan 6, 2017
Priority date	Jan 8, 2016
Publication date	Feb 16, 2021
Grant date	Feb 16, 2021

Abstract

A joint and a method of bonding a first member to a second member are disclosed. The joint includes a multi-layer adhesive material between the first member and the second member. The multi-layer adhesive material includes at least one adhesive material that is applied to one of the first member and the second member. The multi-layer adhesive material also includes a heating element for heating the at least one adhesive material and at least one permeable layer for allowing air to escape from between the first member and second member during heating of the at least one adhesive material.

First claim

Having thus described the invention, it is claimed:

1. A method of bonding a first member to a second member, comprising:
placing a multi-layer adhesive material between the first member and the second member, wherein the multi-layer adhesive material includes a resistive heating element, at least one layer of adhesive material, and at least one permeable layer;
engaging the first member to the second member using the multi-layer adhesive material to form a joint;
generating heat in the multi-layer adhesive material using the resistive heating element to bond the at least one adhesive material to one of the first member and the second member; and
removing gas from between the first member and second member via the at least one permeable layer.

2. The method of claim 1 , further comprising placing a vacuum sealant over the joint and removing the gas from the multi-layer adhesive material during heating of the multi-layer adhesive material.

3. The method of claim 2 , further comprising removing the gas from the joint via the at least one permeable layer of the multi-layer adhesive material.

4. The method of claim 1 , further comprising generating heat by applying a current through the heating element.

5. The method of claim 1 , wherein the heating element includes a layer of carbon nanotube material.

6. The method of claim 1 , wherein the at least one permeable layer further includes a first permeable layer and a second permeable layer and the at least one adhesive layer includes a first adhesive layer and a second adhesive layer, wherein the heating element is sandwiched between the first permeable layer and the second permeable layer, and the first permeable layer, second permeable layer and heating element are sandwiched between the first adhesive layer and the second adhesive layer.

7. The method of claim 1 , wherein the multi-layer adhesive material includes a pre-packaged assembly.

8. The method of claim 1 , wherein generating heat in the multi-layer adhesive material using the resistive heating element includes heating the at least one layer of adhesive material to flow into the at least one permeable layer.

9. The method of claim 8 , further comprising placing a seal over the joint, and wherein removing the gas includes removing the gas from the sealed joint at least when the multi-layer adhesive material is heated to a specified temperature.

10. The method of claim 9 , wherein the specified temperature provides a suitable heat for curing the at least one layer of adhesive material.

11. The method of claim 10 , wherein removing the gas from the sealed joint includes removing the gas from the sealed joint during heating of the multi-layer adhesive.

12. The method of claim 9 , wherein placing the seal over the joint includes placing a vacuum sealant over the joint.

13. The method of claim 9 , wherein placing the seal over the joint includes placing the seal about a perimeter of the joint.

14. A method of bonding a first member to a second member, comprising:
placing a multi-layer adhesive material between the first member and the second member, the multi-layer adhesive material including a resistive heating element, at least one layer of adhesive material, and at least one permeable layer;
engaging the first member to the second member using the multi-layer adhesive material to form a joint;
placing a seal over the joint;
generating heat in the multi-layer adhesive material using the resistive heating element;
removing gas from the sealed joint via the at least one permeable layer when the multi-layer adhesive material is heated to a specified temperature; and
bonding the at least one adhesive material to one of the first member and the second member.

15. The method of claim 14 , wherein the specified temperature provides a suitable heat for curing the at least one layer of adhesive material.

16. The method of claim 15 , wherein removing the gas from the sealed joint includes removing the gas from the sealed joint during heating of the multi-layer adhesive.

17. The method of claim 14 , wherein placing the seal over the joint includes placing a vacuum sealant over the joint.

18. The method of claim 14 , wherein placing the seal over the joint includes placing the seal about a perimeter of the joint.

19. The method of claim 14 , wherein generating heat in the multi-layer adhesive material using the resistive heating element includes heating the at least one layer of adhesive material to flow into the at least one permeable layer.

20. The method of claim 14 , wherein the at least one permeable layer further includes a first permeable layer and a second permeable layer and the at least one adhesive layer includes a first adhesive layer and a second adhesive layer, wherein the heating element is sandwiched between the first permeable layer and the second permeable layer, and the first permeable layer, second permeable layer, and heating element are sandwiched between the first adhesive layer and the second adhesive layer.

Assignees

• Sikorsky Aircraft Corp

Inventors

• Garhart Jonathan K

Classifications

• B29C65/5021

  being multi-layered · CPC title

• B29C65/34 Primary

  using heated elements which remain in the joint, e.g. "verlorenes Schweisselement" · CPC title

• C09J5/06

  involving heating of the applied adhesive · CPC title

• B29C65/48

  using adhesives {, i.e. using supplementary joining material; solvent bonding} · CPC title

• F16B11/006 Primary

  by gluing (gluing of plastics material B29C65/48) · CPC title