Composite material bonding apparatus and composite material bonding method

Patent metadata

Field	Value
Publication number	US-12350890-B2
Application number	US-202018015213-A
Country	US
Kind code	B2
Filing date	Dec 28, 2020
Priority date	Dec 28, 2020
Publication date	Jul 8, 2025
Grant date	Jul 8, 2025

Abstract

Provided is a composite material bonding apparatus that can reduce a cycle time when composite material members are bonded to each other. The composite material bonding apparatus includes a sheet-heater moving device that places a graphite heater at an insertion position between a first bonded surface of a first composite material member and a second bonded surface of a second composite material member such that the graphite heater is parallel to the first bonded surface and the second bonded surface facing the first bonded surface, and retracts the graphite heater to a retraction position from the insertion position. The first bonded surface and the second bonded surface are heated at the insertion position by the graphite heater, and then the graphite heater is moved to the retraction position by the sheet-heater moving device.

First claim

The invention claimed is:

1. A composite material bonding method comprising:
a heating step of locating a sheet heater having a planar shape at an insertion position between a first bonding surface of a first composite member and a second bonding surface of a second composite member facing the first bonding surface, so as to be parallel to the first bonding surface and to the second bonding surface, and of causing the sheet heater to heat the first bonding surface and the second bonding surface;
a retracting step of retracting the sheet heater to a retract position to be retracted from the insertion position; and
a bonding step of causing the first bonding surface and the second bonding surface to approach each other, and of bonding the first bonding surface and the second bonding surface to each other, wherein
the sheet heater includes a heat generating unit made of graphite and insulting layers that sandwich and fix the heat generating unit.

Assignees

• Mitsubishi Heavy Ind Ltd

Inventors

• Moriya Makoto
• Ishida Makoto
• Otobe Shogo
• TERASAKA Akihiro

Classifications

• B29C66/532

  Joining single elements to the wall of tubular articles, hollow articles or bars · CPC title

• B29C66/61

  Joining from or joining on the inside (for making tubes by bending sheets and joining from the inside B29C53/387) · CPC title

• B29C66/524

  Joining profiled elements · CPC title

• B29C66/131

  Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area · CPC title

• B29C66/112

  Single lapped joints · CPC title