Induction welding using a heat sink and/or cooling

Patent metadata

Field	Value
Publication number	US-12565012-B2
Application number	US-202217929857-A
Country	US
Kind code	B2
Filing date	Sep 6, 2022
Priority date	Aug 6, 2019
Publication date	Mar 3, 2026
Grant date	Mar 3, 2026

Abstract

A heat sink for use in induction welding includes a number of tiles, wherein the tiles are electrically non-conductive and have a thermal diffusivity of greater than about 25 mm2/sec. A joint flexibly joins the tiles together.

First claim

The following is claimed:

1 . A method of forming a heat sink, the method comprising:
spacing a number of tiles into a single layer with a gap between the tiles, wherein the tiles are electrically non-conductive and thermally conductive; and filling the gap between the tiles with an adhesive flexibly joining sides of the number of tiles to each other.

2 . The method of claim 1 , further comprising joining the tiles with a mechanical hinge disposed within the gap.

3 . The method of claim 1 , further comprising setting the tiles onto a layer of flexible adhesive sprayed onto a backing material comprising fibers comprised of a glass.

4 . The method of claim 3 , further comprising disposing cooling channels within the gap.

5 . The method of claim 3 , further comprising curing the adhesive.

6 . The method of claim 1 , wherein:
spacing the tiles includes spacing the tiles on a backing material: and the adhesive comprises:
a tensile strength of between 690 psi to 1035 psi; and
a tear strength (Die B) of between 31 lb/in to 190 lb/in.

7 . The method of claim 1 , further comprising the flexible adhesive comprising a silicone.

8 . The method of claim 1 , wherein;
the tiles are electrically non-conductive and have a thermal diffusivity of greater than about 25 mm 2 /sec; and the adhesive comprises:
a long-term degradation temperature greater than about 570 degrees Fahrenheit in air; and
an elongation of between 120% and 670%.

9 . The method of claim 1 , further comprising fluid channels within the tiles and the gap defining a fluid path for communicating a coolant through the heat sink.

10 . A method for forming a heat sink for induction welding, the method comprising:
spacing a number of tiles into a single layer within a frame having a jig; removing the jig; applying a flexible adhesive between the tiles; and subsequently curing the flexible adhesive.

11 . The method of claim 10 , further comprising priming the tiles with a primer.

12 . The method of claim 11 , wherein:
priming the tiles includes priming the tiles with a silicone primer: and the flexible adhesive comprises:
a long-term degradation temperature greater than about 570 degrees Fahrenheit in air; and
an elongation of between 120% and 670%.

13 . The method of claim 10 , further comprising providing the number of tiles that are electrically non-conductive and thermally conductive prior to spacing the number of tiles within the frame.

14 . The method of claim 10 , wherein spacing the tiles within the frame includes spacing the tiles on a backing material comprising a glass disposed under the frame.

15 . The method of claim 14 , wherein;
spacing the tiles on the backing material includes adhering the tiles to the backing material; and the flexible adhesive comprises:
a tensile strength of between 690 psi to 1035 psi; and
a tear strength (Die B) of between 31 lb/in to 190 lb/in.

16 . The method of claim 15 , further comprising disposing cooling channels within the flexible adhesive.

17 . The method of claim 16 , further comprising removing the backing material after curing the flexible adhesive.

18 . The method of claim 10 , wherein the flexible adhesive forms a joint between the tiles at edges of the tiles and the flexible adhesive is comprised of silicon.

19 . The method of claim 10 wherein the tiles are electrically non-conductive and have a thermal diffusivity of greater than about 25 mm 2 /sec.

20 . The method of claim 10 , further comprising disposing a fluid path defined by fluid channels within the tiles and the flexible adhesive for communicating a coolant through the heat sink.

Assignees

• Boeing Co

Inventors

• Dichiara Jr Robert A
• Blevins Creed Ernest

Classifications

• F28F2275/025

  by using adhesives · CPC title

• F28F2255/06

  composite, e.g. polymers with fillers or fibres · CPC title

• F28F2255/02

  Flexible elements · CPC title

• F28F2245/00

  Coatings; Surface treatments · CPC title

• F28F21/084

  from aluminium or aluminium alloys · CPC title