Printable susceptor for use in induction welding

{
  "publication_number": "US12167522B2",
  "country": "US",
  "kind": "B2",
  "title": "Printable susceptor for use in induction welding",
  "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.",
  "claims": [
    "1. A composite fibrous susceptor comprising a magnetically susceptible continuous fiber and a thermoplastic polymer; and wherein the thermoplastic polymer comprises a polysulfone, a poly(ether sulfone), a polyetherimide, a poly(phenylene sulfide), a polyaryl ether ketone, a polyphthalamide, a liquid-crystalline polymers (LCP), a polyphenylene sulfone, polyimide, polyamide-imide, and polybenzimidazole or blends or copolymers thereof.",
    "2. The composite fibrous susceptor of claim 1, wherein the magnetically susceptible continuous fiber is a fiber roving.",
    "3. The composite fibrous susceptor of claim 2, wherein the thermoplastic polymer is impregnated in the fiber roving.",
    "4. The composite fibrous susceptor of claim 1, wherein the thermoplastic polymer is bonded to the magnetically susceptible continuous fiber.",
    "5. The composite fibrous susceptor of claim 1, wherein the magnetically susceptible continuous fiber comprises a carbon fiber or a metal fiber.",
    "6. The composite fibrous susceptor of claim 5, wherein the magnetically susceptible continuous fiber comprises graphitic carbon or metal-coated carbon.",
    "7. The composite fibrous susceptor of claim 1, wherein the continuous fiber has an ultimate tensile strength of about 3,000 MPa or greater as determined according to ASTM D639.",
    "8. The composite fibrous susceptor of claim 7, wherein the continuous fiber has a mass per unit length of from about 0.1 to about 2 grams per meter.",
    "9. The composite fibrous susceptor of claim 1, wherein the thermoplastic polymer exhibits a glass transition temperature of about 150° C. or greater."
  ],
  "description_excerpt": "The development of fiber-reinforced polymeric composite materials has been of great benefit as these materials can provide excellent strength characteristics and corrosion resistance at low densities. Polymeric composites have been of particular benefit in the transportation industry, where the ability to produce lightweight, strong, and resistant panels from polymeric components has greatly enhanced efficiency of vehicles and decreased both construction and operating costs.\n\nUnfortunately, utilization of fiber-reinforced polymeric composites to their full potential, and in particular, as replacement for traditional metal-based materials, remains limited due to high costs, a large portion of which can be attributed to assembly. Costs associated with assembly and adequate fastening of polymeric-based composites can be significant as connecting bonds lack the presence of the reinforcement materials and generally rely on the resin matrix alone for bond strength. To ensure formation of the strongest possible welds, the bond must provide the fullest possible contact and matrix participation throughout the entire bond area.\n\nTo improve polymeric composite assembly methods and outcomes, joining methods such as induction welding have been developed. Induction welding is a non-contact welding process that encourages fusion bonding between components. A process uses alternating magnetic fields to induce eddy currents and thereby heat magnetically susceptible materials (susceptors) within and/or adjacent to the bond area.",
  "cpc": [
    "H05B 6/105",
    "B29C 65/3636",
    "B29C 65/366",
    "B29C 65/488",
    "B29C 65/526",
    "B29C 66/1122",
    "B29C 66/43",
    "B29C 66/7212",
    "B32B 5/00",
    "D01F 8/18",
    "F16B 5/08",
    "H01F 1/00",
    "H05B 6/02"
  ],
  "ipc": [
    "B32B 5/00",
    "D01F 8/18",
    "F16B 5/08",
    "H01F 1/00",
    "H05B 6/02",
    "H05B 6/10"
  ],
  "assignees": [
    "KOK AND VAN ENGELEN COMPOSITE STRUCTURES BV",
    "University of South Carolina"
  ],
  "inventors": [
    "Michael Van Tooren",
    "Harm van Engelen"
  ],
  "filing_date": "2020-02-24",
  "publication_date": "2024-12-10",
  "grant_date": "2024-12-10",
  "priority_date": "2016-08-18",
  "application_number": "US-202016799135-A",
  "family_id": "61240878",
  "cited_by_count": 0,
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}