Repair method of repair target portion, and repair apparatus

Patent metadata

Field	Value
Publication number	US-9751266-B2
Application number	US-201414227362-A
Country	US
Kind code	B2
Filing date	Mar 27, 2014
Priority date	Mar 28, 2013
Publication date	Sep 5, 2017
Grant date	Sep 5, 2017

Abstract

The present invention sufficiently heats a repairing material while preventing change in quality of a base material provided with the repairing material so as to securely bond the repairing material to a repair target portion. The repair method of the present invention, in order to repair a repair target portion 14 existing in an outer panel 1 , includes a repairing material disposing step of disposing a repairing patch 20 and an adhesive 21 A to the repair target portion 14 ; and a heating-hardening step of heating and hardening the adhesive 21 A by irradiating it with electromagnetic waves.

First claim

What is claimed is:

1. A method of repairing a repair target portion existing in a repair target,
the method comprising:
a repairing material disposing step of disposing a repairing material to the repair target portion; and
a heating-hardening step of heating and hardening the repairing material by irradiating the repairing material with electromagnetic waves, wherein
in the repairing material disposing step, a second shield member for blocking the electromagnetic waves is disposed between the repairing material and the repair target, and wherein
the heating-hardening step further comprises irradiating a portion of the second shield member with the electromagnetic waves without heating the second shield member to a temperature reached by the repairing material in response to being irradiated with the electromagnetic waves.

2. The method of repairing a repair target portion according to claim 1 , wherein
in the heating-hardening step,
the repairing material and an oscillator that oscillates the electromagnetic waves are covered by a first shield member for blocking the electromagnetic waves.

3. The method of repairing a repair target portion according to claim 1 , wherein
a honeycomb core sandwich panel configured by holding a core having a honeycomb structure including a number of cells between outer skins is repaired as the repair target.

4. The method of repairing a repair target portion according to claim 1 , wherein the heating-hardening step is performed using an irradiator for radiating electromagnetic waves so as to heat the repairing material disposed to the repair target portion.

5. The method of repairing a repair target portion according to claim 4 , wherein
the irradiator comprises:
an oscillator for oscillating the electromagnetic waves; and
a first shield member for covering the repairing material and the oscillator so as to block the electromagnetic waves.

6. The method of repairing a repair target portion according to claim 4 , wherein
the irradiator further comprises the second shield member disposed between the repairing material and the repair target so as to block the electromagnetic waves.

7. The method of repairing a repair target portion according to claim 5 , wherein
the irradiator further comprises the second shield member disposed between the repairing material and the repair target so as to block the electromagnetic waves.

8. The method of repairing a repair target portion according to claim 1 , the repair target portion existing in a honeycomb core sandwich panel configured by holding a core having a honeycomb structure including a number of cells between outer skins, the honeycomb core sandwich panel being the repair target,
the method comprising:
disposing an oscillator of electromagnetic waves on a side of one of the outer skins of the honeycomb core sandwich panel;
disposing a shield member for blocking the electromagnetic waves on a side of the other of the outer skins of the honeycomb core sandwich panel;
performing a moisture releasing step of vaporizing moisture existing inside the core using the electromagnetic waves radiated from the oscillator, and releasing the moisture from the repair target portion to an outside of the core; and thereafter,
performing a heating-hardening step of hardening a repairing material disposed to the repair target portion by heating.

9. A method of repairing a repair target portion existing in a repairing target,
the method comprising:
a repairing material disposing step of disposing a repairing material to the repair target portion; and
a step of heating and melting the repairing material by irradiating the repairing material with electromagnetic waves, and thereafter putting the repairing material into a solidified state, wherein
in the repairing material disposing step, a second shield member for blocking the electromagnetic waves is disposed between the repairing material and the repair target, and
in the step of heating, the electromagnetic waves irradiating the repairing material induce heat within the repairing material causing the repairing material to reach a melting temperature without significantly inducing heat in the second shield member.

10. The method of repairing a repair target portion according to claim 9 , wherein
the step of heating and melting is performed using an irradiator for radiating electromagnetic waves so as to heat the repairing material disposed to the repair target portion.

11. The method of repairing a repair target portion according to claim 10 , wherein
the irradiator comprises:
an oscillator for oscillating the electromagnetic waves; and
a first shield member for covering the repairing material and the oscillator so as to block the electromagnetic waves.

12. The method of repairing a repair target portion according to claim 10 , wherein
the irradiator further comprises the second shield member disposed between the repairing material and the repair target so as to block the electromagnetic waves.

13. The method of repairing a repair target portion according to claim 11 , wherein
the irradiator further comprises the second shield member disposed between the repairing material and the repair target so as to block the electromagnetic waves.

14. The method of repairing a repair target portion according to claim 8 , wherein
in the heating-hardening step,
the repairing material and an oscillator that oscillates the electromagnetic waves are covered by a first shield member for blocking the electromagnetic waves.

15. The method of repairing a repair target portion according to claim 8 , wherein the heating-hardening step is performed using an irradiator for radiating electromagnetic waves so as to heat the repairing material disposed to the repair target portion.

16. The method of repairing a repair target portion according to claim 11 , wherein
the irradiator comprises:
an oscillator for oscillating the electromagnetic waves; and
a first shield member for covering the repairing material and the oscillator so as to block the electromagnetic waves.

17. The method of repairing a repair target portion according to claim 11 , wherein
the irradiator further comprises the second shield member disposed between the repairing material and the repair target so as to block the electromagnetic waves.

Assignees

• Mitsubishi Aircraft Corp

Inventors

• Arikawa Kiwamu
• Suhara Masayoshi
• Iseki Hiroyuki
• Muto Shuhei

Classifications

• B29C73/34

  for local heating · CPC title

• B29C73/12

  Apparatus therefor, e.g. for applying (B29C73/30 takes precedence) · CPC title

• B29C2035/0855

  using microwave · CPC title

• B29C73/10 Primary

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

• B29C73/30

  for local pressing or local heating · CPC title