Additive manufactured dual material braze joint replacement
AssigneeRosemount Aerospace Inc.
InventorJoseph Weikert
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Abstract
A temperature sensor may include a baseplate and a housing. The baseplate may include a rim portion with a top surface. The housing may include a strut portion with a bottom lip. The bottom lip may abut to and be one of fused to the top surface by a fusion zone or brazed to the top surface by a braze joint. The temperature sensor may include a fusion zone fusing the bottom lip and the top surface or a braze joint brazing the bottom lip and the top surface. A portion of or an entirety of the top surface of the rim portion may be utilized in the fusion zone or the braze joint. The bottom lip may include a lattice which improves the wetting of the braze joint.
Claims20
A temperature sensor comprising:
- a baseplate comprising a rim portion and a shoulder portion, wherein the shoulder portion is smaller than and axially extends from the rim portion, wherein the rim portion comprises a top surface, wherein the rim portion and the shoulder portion define a centered-through hole, wherein the baseplate is made of a first base metal;
- a housing comprising a strut portion, wherein the strut portion defines a probe outlet and a sensor cavity, wherein the probe outlet and the sensor cavity are fluidically coupled within the housing, wherein the strut portion comprises a bottom lip, wherein the housing is made of a second base metal, wherein the housing is formed with a plurality of layers, wherein the plurality of layers are stacked axially from the baseplate up to a distal end of the housing;
- and
- a sensor assembly, wherein the sensor assembly is disposed within the centered-through hole and the sensor cavity, wherein the sensor assembly is configured to generate a temperature measurement;
- wherein the bottom lip abuts and is fused to the top surface by a fusion zone.
A temperature sensor comprising:
- a baseplate comprising a rim portion and a shoulder portion, wherein the shoulder portion is smaller than and axially extends from the rim portion, wherein the rim portion comprises a top surface, wherein the rim portion and the shoulder portion define a centered-through hole, wherein the baseplate is made of a first base metal;
- a housing comprising a strut portion, wherein the strut portion defines a probe outlet and a sensor cavity, wherein the probe outlet and the sensor cavity are fluidically coupled within the housing, wherein the strut portion comprises a bottom lip, wherein the housing is made of a second base metal, wherein the housing is formed with a plurality of layers, wherein the plurality of layers are stacked axially from the baseplate up to a distal end of the housing;
- and
- a sensor assembly, wherein the sensor assembly is disposed within the centered-through hole and the sensor cavity, wherein the sensor assembly is configured to generate a temperature measurement;
- wherein the bottom lip abuts and is brazed to the top surface by a braze joint, wherein the braze joint comprises a filler metal, wherein the braze joint does not form an alloy with the first base metal and the second base metal, wherein the bottom lip comprises a lattice structure, wherein the lattice structure is formed from a subset of the plurality of layers, wherein the lattice structure abuts and is brazed to the top surface by the braze joint, and wherein the braze joint fills the lattice structure.
Dependencies are inferred from the claim text.