In-situ hot working and heat treatment of additively manufactured metallic alloys
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United States of America Patent
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Dec 15, 2020
Grant Date -
Aug 22, 2019
app pub date -
Feb 7, 2019
filing date -
Feb 7, 2018
priority date (Note) -
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status (Latency Note)
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Abstract
A hybrid manufacturing system comprises a workpiece platform, a heater, a material deposition system, a mechanical forming device, and a controller. The controller is operatively programmed to control the material deposition system to lay a track of material according to the three-dimensional representation of the object and control the mechanical forming device and the heater to apply mechanical force to a targeted portion of the object while the targeted portion of the object is maintained at a hot working temperature. The mechanical impact closes porosity of material within the targeted portion of the object, changes the microstructure within the targeted portion of the object, or both, and the mechanical impact causes a shape change within the targeted portion of the object. The controller still further computes a correction for a next track to be laid by the material deposition system based upon the shape change caused by the mechanical impact.
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