3D PRINTING METHOD WITH ADVANCED GAS FLOW
    42.
    发明公开

    公开(公告)号:EP3988231A1

    公开(公告)日:2022-04-27

    申请号:EP20203495.5

    申请日:2020-10-23

    发明人: Lindstam, Johan

    摘要: The present invention refers to a method of utilizing a 3D printer to improve the insight in the gas flow characteristics and the possibilities to predict and optimize 3D prints provided by such 3D printer. Furthermore, the present invention refers to a computer program product utilized to execute such method. Additionally, the present invention refers to a base plate beneficially utilized herein. Additionally, the present invention refers to a 3D printing device adapted to realize such method. Furthermore, the present invention refers to a control device utilized for such method. Additionally, the present invention refers to an upgrade kit containing such control device. Furthermore, the present invention refers to a use of a temperature profile acquired by an inventive method to adapt a 3D printing process.

    THREE-DIMENSIONAL POWDER BED FUSION ADDITIVE MANUFACTURING APPARATUS AND THREE-DIMENSIONAL POWDER BED FUSION ADDITIVE MANUFACTURING METHOD

    公开(公告)号:EP3970885A2

    公开(公告)日:2022-03-23

    申请号:EP21197195.7

    申请日:2021-09-16

    申请人: Jeol Ltd.

    摘要: An object of the present invention is to improve the accuracy of temperature measurement of a build surface on which a three-dimensional build object is formed.
    A three-dimensional powder bed fusion additive manufacturing apparatus (100) according to one aspect of the present invention includes a storage unit (54) that stores first correspondence information (541) that is correspondence information between an amount of thermal electrons emitted from a build surface and temperature of the build surface, the build surface being an uppermost layer among powder layers (13) formed by building up layers of a powder sample (11) on a build plate (9), a beam generating unit (2) that irradiates the build surface with a beam, a thermal electron detecting unit (19) that detects thermal electrons emitted from the build surface during irradiation of the beam, and a build surface temperature calculating unit (58) that calculates the temperature of the build surface with reference to the first correspondence information (541) on the basis of the thermal electrons detected by the thermal electron detecting unit (19) .