Lamination molding apparatus and method for producing three-dimensional molded object
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United States of America Patent
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Feb 7, 2023
Grant Date -
N/A
app pub date -
Jan 11, 2021
filing date -
Jan 30, 2020
priority date (Note) -
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status (Latency Note)
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Abstract
A lamination molding apparatus includes a molding room, a chamber, a chamber window, a molding table, a molding table driving device, surrounding walls, an irradiation device, a measuring unit, and a controller. The measuring unit includes a first measuring device acquiring a measured value of a light intensity, and a second measuring device acquiring a value of a beam diameter, and measures laser beams outputted based on set values of light intensity during molding. The controller determines an abnormality has occurred when a slope of a linear function obtained from a relationship between the measured value of the light intensity and the value of the beam diameter at a predetermined height is out of a predetermined range, or when a slope of a linear function obtained from a relationship between the measured value of the light intensity and a value of a focal position is out of a predetermined range.
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