Analytic sintering forms and method for using same
    1.
    发明授权
    Analytic sintering forms and method for using same 有权
    分析烧结形式及其使用方法

    公开(公告)号:US07685883B2

    公开(公告)日:2010-03-30

    申请号:US11601052

    申请日:2006-11-17

    IPC分类号: G01N3/00

    摘要: A set of analytic forms provide empirical data used to determine the material properties of a part following its fabrication. Multiple of families of the forms are identically processed to provide a variety of data, including the reaction of the part material to compression, tension and bending stresses. The forms in each family have a structural feature that singularizes the directional effect of gravity on a test cross section of the material. The dimensions of the test cross section progressively vary within each family so that data can be generated for multiple levels of stress.

    摘要翻译: 一组分析形式提供了经验数据,用于确定其制造后的零件的材料特性。 形式的多个系列被相同地处理以提供各种数据,包括部件材料对压缩,张力和弯曲应力的反应。 每个家庭中的形式具有将重力的方向效应单独化在材料的测试横截面上的结构特征。 测试横截面的尺寸在每个系列内逐渐变化,从而可以为多个应力水平产生数据。

    Selective laser sintering reduced volume feed mechanism
    2.
    发明授权
    Selective laser sintering reduced volume feed mechanism 失效
    选择性激光烧结减少了进料机构

    公开(公告)号:US07034246B2

    公开(公告)日:2006-04-25

    申请号:US10915643

    申请日:2004-08-10

    IPC分类号: B23K26/00

    摘要: A reduced feed mechanism for a selective laser sintering machine. The machine includes a powder feed source and a first feed piston to push powder from the source. The mechanism includes a spacer with an interior volume, a second piston, and a seal for the second piston. The spacer fits into the source. The first piston moves the second piston and causes powder to move from the interior volume. Preferably, the pistons are coupled by a floating coupling. An access panel may allow a user to view the coupling. The mechanism may include a ballast which can fit inside the source for the first piston. Preferably, the spacer reduces the volume of powder by approximately 70%. An infrared sensor may also be positioned to view the reduced amount of powder. Methods of selective laser sintering are also provided.

    摘要翻译: 用于选择性激光烧结机的还原进料机构。 该机器包括粉末进料源和第一进料活塞,以从所述源推粉。 该机构包括具有内部容积的间隔件,第二活塞和用于第二活塞的密封件。 垫片适合于源头。 第一活塞移动第二活塞并使粉末从内部容积移动。 优选地,活塞通过浮动联接器联接。 访问面板可以允许用户查看耦合。 该机构可以包括可以装配在用于第一活塞的源的内部的镇流器。 优选地,间隔物将粉末的体积减少大约70%。 还可以将红外传感器定位成观察减少量的粉末。 还提供了选择性激光烧结的方法。

    Analytic sintering forms and method for using same
    5.
    发明申请
    Analytic sintering forms and method for using same 有权
    分析烧结形式及其使用方法

    公开(公告)号:US20080115586A1

    公开(公告)日:2008-05-22

    申请号:US11601052

    申请日:2006-11-17

    IPC分类号: G01N3/00

    摘要: A set of analytic forms provide empirical data used to determine the material properties of a part following its fabrication. Multiple of families of the forms are identically processed to provide a variety of data, including the reaction of the part material to compression, tension and bending stresses. The forms in each family have a structural feature that singularizes the directional effect of gravity on a test cross section of the material. The dimensions of the test cross section progressively vary within each family so that data can be generated for multiple levels of stress.

    摘要翻译: 一组分析形式提供了经验数据,用于确定其制造后的零件的材料特性。 形式的多个系列被相同地处理以提供各种数据,包括部件材料对压缩,张力和弯曲应力的反应。 每个家庭中的形式具有将重力的方向效应单独化在材料的测试横截面上的结构特征。 测试横截面的尺寸在每个系列内逐渐变化,从而可以为多个应力水平产生数据。

    Thermocouple control system for selective laser sintering part bed temperature control
    6.
    发明授权
    Thermocouple control system for selective laser sintering part bed temperature control 有权
    热电偶控制系统用于选择性激光烧结部分床温控制

    公开(公告)号:US06822194B2

    公开(公告)日:2004-11-23

    申请号:US10157473

    申请日:2002-05-29

    IPC分类号: B23K2602

    摘要: A temperature control system for use in a selective laser sintering machine is provided that comprises a thermocouple disposed within a part bed of the selective laser sintering machine and a temperature transmitter in communication with the thermocouple. The temperature transmitter is incorporated into existing control circuitry of the selective laser sintering machine, and the control circuitry is in communication with control logic, which controls the part bed temperature, among other process parameters. In operation, the thermocouple senses and communicates the part bed temperature to the temperature transmitter, and the control circuitry communicates the part bed temperature to the control logic to control part bed temperature during a part build.

    摘要翻译: 提供了一种用于选择性激光烧结机的温度控制系统,其包括设置在选择性激光烧结机的部分床内的热电偶和与热电偶连通的温度变送器。 温度变送器被结合到选择性激光烧结机的现有控制电路中,并且控制电路与控制逻辑通信,控制逻辑控制部分床温度以及其它工艺参数。 在操作中,热电偶感测并将部分床温度传达到温度变送器,并且控制电路将部分床温度传递到控制逻辑以在部件构建期间控制部件床温度。