Ceramic coating heat shield for induction welding
AssigneeRohr, Inc.
InventorsMichael Van Tooren, Jeffrey D. Woods
Life of this patent
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Abstract
An assembly is provided for induction welding. This assembly utilizes a heat shield (e.g., a mica heat shield) with a recess. An induction welding coil may be disposed within this heat shield recess during induction welding operations. The wall thickness of the heat shield within the recess may be reduced to enhance heat transfer to a workpiece during induction welding operations. The heat shield may be coated with a ceramic coating to enhance the heat shield's heat resistance and reduce heat shield flaking at the recess during induction welding operations.
Claims20
An induction welding assembly, comprising:
- an induction welding coil;
- a heat shield comprising:
- a ceramic coating;
- and
- a heat shield recess aligned with and projecting toward said induction welding coil;
- and
- a workpiece zone, wherein said heat shield is disposed between said induction welding coil and said workpiece zone in a first dimension.
An induction welding assembly, comprising:
- an induction welding coil;
- a heat shield assembly comprising a plurality of heat shields aligned in end-to-end relation, wherein each heat shield of said plurality of heat shields comprises a heat shield recess,
- wherein each heat shield recess of said plurality of heat shields comprises a ceramic coating, and
- wherein said heat shield recesses of said plurality of heart shields are aligned to provide a welding path for said induction welding coil;
- and
- a workpiece zone, wherein said heat shield assembly is disposed between said induction welding coil and said workpiece zone in a first dimension.
An induction welding method, comprising:
- positioning a workpiece such that a heat shield is disposed between said workpiece and an induction welding coil, wherein said induction welding coil is at least partially disposed in a heat shield recess of said heat shield, wherein said heat shield recess comprises a ceramic coating, and wherein said workpiece comprises a first workpiece member and a second workpiece member;
- advancing said induction welding coil along a welding path along the heat shield, wherein a spacing between said induction welding coil and said heat shield remains at least substantially constant during said advancing;
- and
- operating said induction welding coil to induction weld said first workpiece member to said second workpiece member.
Dependencies are inferred from the claim text.