Printable susceptor for use in induction welding

Patent metadata

Field	Value
Publication number	US-10609771-B2
Application number	US-201715680739-A
Country	US
Kind code	B2
Filing date	Aug 18, 2017
Priority date	Aug 18, 2016
Publication date	Mar 31, 2020
Grant date	Mar 31, 2020

Abstract

A composite fibrous susceptor for use in induction welding is described, along with methods of its construction and use. The composite fibrous susceptor can include a magnetically susceptible continuous fiber in conjunction with a thermoplastic polymer. The composite fibrous susceptor can be deposited according to an additive manufacturing process on a surface to be bonded according to an induction welding process.

First claim

What is claimed:

1. A method for induction welding comprising:
depositing a composite fibrous susceptor on a first surface, the composite fibrous susceptor comprising a magnetically susceptible continuous fiber and a thermoplastic polymer, the first surface comprising a second polymer;
locating a second surface adjacent the first surface with the composite fibrous susceptor extended between the first and second surfaces, the second surface comprising a third polymer; and
inductively heating the composite fibrous susceptor and thereby forming a bond between the first surface and the second surface.

2. The method of claim 1 , wherein the second polymer and/or the third polymer is a thermoplastic polymer.

3. The method of claim 2 , wherein the second polymer and/or the third polymer is the same as the thermoplastic polymer of the composite fibrous susceptor.

4. The method of claim 1 , further comprising depositing a formation material on the first surface, the formation material comprising a fourth thermoplastic polymer.

5. The method of claim 4 , wherein the first thermoplastic polymer and the fourth thermoplastic polymer are the same.

6. The method of claim 4 , wherein the formation material and the composite fibrous susceptor are deposited together.

7. The method of claim 1 , wherein the second polymer and/or the third polymer is a thermoset polymer.

8. The method of claim 1 , wherein the first surface and/or the second surface is a surface of a fiber reinforced polymeric component.

9. The method of claim 1 , further comprising depositing a second composite fibrous susceptor on the second surface.

10. The method of claim 1 , wherein the composite fibrous susceptor is deposited by use of a 3-D printer.

Assignees

• Univ South Carolina
• Kok & Van Engelen Composite Structures B V

Inventors

• Van Tooren Michael
• Van Engelen Harm

Classifications

• H05B6/105 Primary

  using a susceptor · CPC title

• F16B5/08

  by means of welds or the like (welding B23K) · CPC title

• H05B6/02

  Induction heating · CPC title

• D01F8/18

  from other substances · CPC title

• B32B5/00

  Layered products characterised by the non- homogeneity or physical structure {, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts} · CPC title