Patent ID: 11931955
Assignee: MTU AERO ENGINES AG
Field: Measurement (Instruments)
Classification: CPC B  G  Y | IPC B  G

Claim 0:
1. A method for evaluating the quality of a component produced by an additive sintering and/or melting method, comprising the steps of:
(a) applying a layer of material at an associated component location of a component via additive sintering and/or melting method;
(b) providing a first data set, which comprises spatially resolved color values, which each characterize the temperature of the component at an associated component location during the sintering and/or melting of the component;
(c) providing a second data set, which comprises spatially resolved color values corresponding to the first data set, the color values each characterizing the temperature of a reference component at an associated reference component location during the sintering and/or melting of the reference component;
(d) determining a difference between the first data set and the second data set; and
(e) evaluating the quality of the component on the basis of the difference between the first data set and the second data set,
wherein the difference between the first data set and the second data sent is determined by;
a comparison between at least one histogram of the component and at least one corresponding histogram of the reference component; and/or
a cross correlation of the first and second data sets; and/or
an autocorrelation of the first data set and/or the second data set; and/or
a breakdown of the first and/or the second data set into harmonic components; and/or
a determination of at least one line center of gravity and/or at least one surface area center of gravity and/or a volume center of gravity of the component and/or of the reference component,
wherein the first data set and/or the second data set are/is created from measured values that are determined by using a high-resolution detector and/or an optical thermography method.