Conformable induction coils for induction joining
A method and apparatus for joining parts. A plurality of conformable induction coils embedded in a number of elastomeric sheets is positioned relative to a first composite part of the parts and a second composite part of the parts. A magnetic field is generated with the plurality of conformable induction coils. The magnetic field is configured to generate heat in a magnetically permeable material at a joint location. The heat joins the first composite part and the second composite part to each other.
1. A method for joining parts, the method comprising:
positioning a plurality of conformable induction coils embedded in a number of elastomeric sheets relative to a first composite part of the parts and a second composite part of the parts; and
generating a magnetic field with the plurality of conformable induction coils, wherein the magnetic field is configured to generate heat in a magnetically permeable material at a joint location, wherein the heat joins the first composite part and the second composite part to each other;
wherein the magnetically permeable material comprises wires, and wherein embedding the magnetically permeable material in a thermoplastic material comprises embedding the wires such that the wires are directed orthogonal to the plurality of conformable induction coils.
2. The method of claim 1 , further comprising:
positioning a number of conductive plates relative to the joint location such that the magnetic field is present in a desired area.
3. The method of claim 1 , further comprising:
applying a vacuum to the first composite part and the second composite part.
4. The method of claim 1 , further comprising:
applying pressure to at least one of the first composite part and the second composite part using a number of bladders.
5. The method of claim 1 , further comprising at least one of:
embedding the magnetically permeable material in a thermoplastic material of at least one of the first composite part and the second composite part; and
embedding the magnetically permeable material in a thermoplastic material between the first composite part and the second composite part.
6. A method for joining a first composite part and a second composite part, the method comprising:
embedding a plurality of conformable induction coils in a number of elastomeric sheets;
configuring a magnetically permeable material to generate heat when exposed to a magnetic field;
wherein the magnetically permeable material comprises wires embedded in a thermoplastic material; and
wherein the wires are directed orthogonal to the plurality of conformable induction coils.
7. The method of claim 6 , further comprising:
positioning a number of conductive plates relative to a joint location between the first composite part and the second composite part such that a magnetic field is present in a desired area.
8. The method of claim 6 , wherein the plurality of conformable induction coils comprise a plurality of lengths of Litz wire.
9. The method of claim 6 , further comprising:
embedding the magnetically permeable material in a thermoplastic material in the first composite part.
10. The method of claim 6 , further comprising:
embedding the magnetically permeable material in a thermoplastic material in the second composite part.
11. The method of claim 6 , further comprising:
placing the magnetically permeable material in a thermoplastic material between the first composite part and the second composite part.
12. The method of claim 6 , further comprising:
extending the plurality of conformable induction coils less than a full length of one of the first composite part and the second composite part.
13. The method of claim 6 , further comprising:
sealing a vacuum bag to a tool in a number of tools.
14. The method of claim 13 , wherein the number of tools is formed of a polyurethane foam board.
15. The method of claim 6 , further comprising:
operatively coupling a power source to the plurality of conformable induction coils.
16. A method for joining a first composite part and a second composite part, the method comprising:
embedding a plurality of conformable induction coils in a number of elastomeric sheets;
positioning a number of conductive plates relative to a joint location between the first composite part and the second composite part such that a magnetic field is present in a desired area; and
configuring wires embedded in a thermoplastic material to generate heat when exposed to a magnetic field, and wherein the wires are directed orthogonal to the plurality of conformable induction coils;
wherein the plurality of conformable induction coils comprise a plurality of lengths of Litz wire.
17. The method of claim 16 , further comprising:
embedding the thermoplastic material in the first composite part, the second composite part, or between the first composite part and the second composite part.