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    2.
    发明专利
    未知

    公开(公告)号：DE602005009638D1

    公开(公告)日：2008-10-23

    申请号：DE602005009638

    申请日：2005-12-02

    Applicant: 3D SYSTEMS INC

    Inventor： CHUNG TAE MARK ,  BISHOP RAYMOND J ,  GEVING BRADLEY DAVID ,  FONG JON JODY ,  DUNNE PATRICK

    IPC: B22F3/105 ,  B22F3/11 ,  B29C35/16 ,  B29C67/00

    Abstract: The invention is a method for controllably cooling at least a portion of a part-cake from a laser sintering system to minimize cool down time, maximize throughput, and minimize thermal gradients within the part-cake. The method generally comprises forming one or more thermal transfer channels within the part-cake. The thermal transfer channels can include ducts and cooling fins in the part-cake surrounding the formed part. The method can further comprise removing unfused powder from the ducts and introducing cooling media into the ducts. The invention also includes a part-cake having thermal transfer channels formed therein and a laser sintering apparatus comprising a part-cake containing cylinder having permanent fittings therein for receiving terminal portions of thermal transfer channels formed in the part-cake.

    7.
    发明专利
    未知

    公开(公告)号：AT450360T

    公开(公告)日：2009-12-15

    申请号：AT05012520

    申请日：2005-06-10

    Applicant: 3D SYSTEMS INC

    Inventor： CHUNG TAE MARK ,  PARTANEN JOUNI P

    IPC: B29C67/00 ,  B23K26/34 ,  B29C35/08 ,  G01J5/52

    Abstract: An apparatus and a method of using the apparatus wherein a radiation emitter (140) is positioned adjacent a sensor means (142,144,145) within a process chamber (102) in a laser sinter system (100) that emits radiation to the sensor means and a calibration means receives readings from the sensor means (142,144,145) to compare temperature sensings received from the sensor means with set emission signals from the radiation emitter (140) to adjust the temperature sensings to thereby calibrate the sensor means during the forming of a three-dimensional article. The calibration is done repeatedly during the build process of the three-dimensional article (Fig. 1).

    8.
    发明专利
    未知

    公开(公告)号：DE102005026884B4

    公开(公告)日：2006-12-21

    申请号：DE102005026884

    申请日：2005-06-10

    Applicant: 3D SYSTEMS INC

    Inventor： CHUNG TAE MARK ,  PARTANEN JOUNI P

    IPC: B22F3/105 ,  B23K26/34 ,  B29C35/08 ,  B29C67/00 ,  G01J5/52

    Abstract: An apparatus and a method of using the apparatus wherein a radiation emitter (140) is positioned adjacent a sensor means (142,144,145) within a process chamber (102) in a laser sinter system (100) that emits radiation to the sensor means and a calibration means receives readings from the sensor means (142,144,145) to compare temperature sensings received from the sensor means with set emission signals from the radiation emitter (140) to adjust the temperature sensings to thereby calibrate the sensor means during the forming of a three-dimensional article. The calibration is done repeatedly during the build process of the three-dimensional article (Fig. 1).

    10.
    发明专利
    未知

    公开(公告)号：DE602005017989D1

    公开(公告)日：2010-01-14

    申请号：DE602005017989

    申请日：2005-06-10

    Applicant: 3D SYSTEMS INC

    Inventor： CHUNG TAE MARK ,  PARTANEN JOUNI P

    IPC: B29C67/00 ,  B23K26/34 ,  B29C35/08 ,  G01J5/52

    Abstract: An apparatus and a method of using the apparatus wherein a radiation emitter (140) is positioned adjacent a sensor means (142,144,145) within a process chamber (102) in a laser sinter system (100) that emits radiation to the sensor means and a calibration means receives readings from the sensor means (142,144,145) to compare temperature sensings received from the sensor means with set emission signals from the radiation emitter (140) to adjust the temperature sensings to thereby calibrate the sensor means during the forming of a three-dimensional article. The calibration is done repeatedly during the build process of the three-dimensional article (Fig. 1).

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