Controlling perforating of an acoustic panel based on sensed optical emissions
AssigneeRohr, Inc.
InventorsJacquelyn Berry, Song Chiou
Life of this patent
Estimating the term…
Abstract
A manufacturing process is provided that includes steps of: providing a panel comprising a core connected to a first skin, wherein the panel is configured with a plurality of cavities extending through the core to the first skin; partially forming a first perforation in the first skin using a laser beam; operating a sensor to sense optical emissions produced during the partial forming of the first perforation; and determining, based on an output of the sensor, whether to: continue formation of the first perforation in the first skin; or terminate formation of the first perforation in the first skin.
Claims20
A manufacturing process, comprising:
- providing a panel comprising a core connected to a first skin, wherein the panel is configured with a plurality of cavities extending through the core to the first skin;
- partially forming a first perforation in the first skin using a laser beam;
- operating a sensor to sense optical emissions produced during the partial forming of the first perforation;
- and
- determining, based on an output of the sensor, whether to
- continue formation of the first perforation in the first skin;
- or
- terminate formation of the first perforation in the first skin;
- wherein the first skin is bonded to the core by a structural adhesive bonding material doped with one or more fillers that produce a plasma when struck by the laser beam;
- wherein the first skin comprises first skin material that is different from the structural adhesive bonding material;
- and
- wherein the determining comprises determining to terminate the formation of the first perforation in the first skin where the output is indicative of ablation of the structural adhesive bonding material by the laser beam.
A manufacturing process for an acoustic panel, comprising:
- providing a panel comprising a first skin and a plurality of core walls attached to a second side of the first skin;
- and
- perforating the first skin using a laser system, the perforating comprising
- beginning formation of a first perforation in the first skin using the laser system;
- operating a sensor to sense optical emissions generated during the formation of the first perforation;
- and
- performing a first operation based on an output of the sensor to determine whether to continue the formation of the first perforation or terminate the formation of the first perforation;
- wherein the first operation comprises sensing the output of the sensor to detect that a laser is striking an adhesive bead formed between and attaching together the first skin and one of the core walls and then in response terminating the formation of the first perforation in the first skin;
- and
- wherein the adhesive bead is doped with one or more fillers that produce a plasma when struck by the laser beam.
A manufacturing process, comprising:
- providing a panel comprising a first skin and a core bonded to the first skin by bonding material doped with one or more fillers that produce plasma when struck by a laser beam, wherein the panel is configured with a plurality of cavities extending through the core to the first skin;
- partially forming a first perforation in the first skin using a laser beam;
- operating a sensor to sense optical emissions produced during the partial forming of the first perforation, wherein the optical emissions comprises the plasma;
- and
- determining, based on an output of the sensor, whether to
- continue formation of the first perforation in the first skin;
- or
- terminate formation of the first perforation in the first skin.
Dependencies are inferred from the claim text.