公开(公告)号：US20160199911A1

公开(公告)日：2016-07-14

申请号：US14995183

申请日：2016-01-13

Applicant: Sigma Labs, Inc.

Inventor： Vivek R. Dave ,  Mark J. Cola

IPC: B22F3/105

CPC classification number: B22F3/1055 ,  B22F2003/1057 ,  B29C64/386 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  Y02P10/295

Abstract: Various ways in which material property variations of raw materials used in additive manufacturing can be identified and accounted for are described. In some embodiments, the raw material can take the form of powdered metal. The powdered metal can have any number of variations including the following: particle size variation, contamination, particle composition and particle shape. Prior to utilizing the powders in an additive manufacturing operation, the powders can be inspected for variations. Variations and inconsistencies in the powder can also be identified by monitoring an additive manufacturing with one or more sensors. In some embodiments, the additive manufacturing process can be adjusted in real-time to adjust for inconsistencies in the powdered metal.

Abstract translation: 描述了添加剂制造中使用的原料的材料性质变化的各种方式。 在一些实施方案中，原料可以采取粉末状金属的形式。 粉末金属可以具有任何数量的变化，包括：粒度变化，污染，颗粒组成和颗粒形状。 在添加剂制造操作中使用粉末之前，可以检查粉末的变化。 还可以通过用一个或多个传感器监测添加剂制造来识别粉末中的变化和不一致性。 在一些实施例中，可以实时调整添加剂制造过程以调整粉末状金属中的不一致性。

公开(公告)号：US20160098825A1

公开(公告)日：2016-04-07

申请号：US14870914

申请日：2015-09-30

Applicant: Sigma Labs, Inc.

Inventor： Vivek R. Dave ,  R. Bruce Madigan ,  Mark J. Cola ,  Martin S. Piltch

IPC: G06T7/00 ,  B22F3/105 ,  G06K9/62 ,  H04N5/247 ,  G06K9/52 ,  G06T7/60

CPC classification number: B22F3/1055 ,  B22F2003/1056 ,  B22F2003/1057 ,  B33Y50/02 ,  G06K9/46 ,  G06K9/52 ,  G06K9/6201 ,  G06K2009/4666 ,  G06T7/0006 ,  G06T2207/20224 ,  G06T2207/30136 ,  G06T2207/30144 ,  Y02P10/295

Abstract: The present invention provides a feature extraction system that extracts geometrical features of a part using in-process data acquired during an additive manufacturing process. The geometric features are extracted by applying a number of image processing operations to images taken of a powder bed during the additive manufacturing process. In this way, both internal and external geometries of the part can be characterized. In some embodiments, geometric feature extraction can be used in conjunction with other part characterizing operations, such as for example, thermal characterization processes.

Abstract translation: 本发明提供了一种特征提取系统，其利用在附加制造过程中获取的过程数据来提取零件的几何特征。 通过在添加剂制造过程中对粉末床拍摄的图像应用多个图像处理操作来提取几何特征。 以这种方式，可以对部件的内部和外部几何形状进行表征。 在一些实施例中，几何特征提取可以与其他部分表征操作结合使用，例如热表征过程。