METHODS FOR PRODUCING ADDITIVELY MANUFACTURED OBJECTS WITH HETEROGENEOUS PROPERTIES

    公开(公告)号:US20240051225A1

    公开(公告)日:2024-02-15

    申请号:US18449589

    申请日:2023-08-14

    CPC classification number: B29C64/264 B29C64/386 B33Y10/00

    Abstract: Methods for manufacturing objects are provided herein. In some embodiments, a method includes receiving a digital data set representing an object, and applying energy to a curable material based on the digital data set to form the object. The object can include at least two object portions formed from the curable material using different energy application parameters. The method can further include removing residual curable material from the object. A different amount of the residual curable material can be removed from each of the at least two object portions. After the residual curable material is removed, the at least two object portions can each have different material properties.

    CUSTOMIZED ALIGNER CHANGE INDICATOR
    16.
    发明申请

    公开(公告)号:US20200214598A1

    公开(公告)日:2020-07-09

    申请号:US16730870

    申请日:2019-12-30

    Abstract: According to the techniques herein, one or more sensors coupled to an aligner are used to sense one or more physical qualities of the aligner to determine whether the physical qualities indicate that the aligner material has relaxed and has, e.g., reduced the force systems applied to teeth and/or that the teeth movement for the stage has slowed down. The sensors may provide a signal that represents whether or not the physical qualities fall below a threshold value. A treatment plan may be modified if needed. These techniques have the potential to make treatment plans faster and more effective by speeding up some stages while making sure some, perhaps other, stages are implemented only after the teeth are near the appropriate position.

    Method of inkjet printing onto aligners

    公开(公告)号:US10668745B1

    公开(公告)日:2020-06-02

    申请号:US16780162

    申请日:2020-02-03

    Abstract: Provided herein are methods of obtaining good photocured-ink adhesion to low surface energy materials. The methods have greatly improved adhesion of photocured ink on low surface energy materials, including those that are subjected to high humidity or wet environments. The methods take into account the glass transition temperature (Tg) of the materials and the onset for the glass transition temperature, including ink applied to an exposed surface of the material at an elevated temperature that is close to the Tg of the material. The ink is allowed to sit briefly or soak, such as for more than 1 second, before the ink is cured. The ink may be photocured. Furthermore, the methods do not require solvents or surface treatment, including plasma or corona treatments, to obtain good ink adhesion.

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