ZENZINGER, Günter,HESS, Thomas,BAMBERG, Joachim,LADEWIG, Alexander
申请号：
EP20150733608
公开号：
EP3160681(A1)
申请日:
2015.04.29
申请国别(地区):
欧洲专利局
年份:
2017
代理人:
摘要：
The invention relates to a method for the quality assurance of at least one component (14) during the production thereof, wherein the production takes place by means of at least one additive manufacturing process, which comprises the following steps: building up the component (14) layer by layer, and themographically recording at least one image of each individual layer applied. In order to facilitate nondestructive crack detection in a metal component (14) during the production process (inspection by means of an online process), at least some of the layers applied are subjected to a controlled heat treatment below the melting point of the material of the component before the thermographic recording of the associated image, wherein the heat treatment causes the last layer applied to radiate heat which, if at least one crack develops in the layer, exhibits a characteristic heat profile at the crack.
