| 摘要 |
<p>The invention relates to a method for producing metal functional models and comprises the following steps: a) application of a powder in the form of coatings consisting of several metal constituents on an undersurface, wherein a first constituent has a higher melting point than a second constituent and the second constituent is present in a first phase or a first phase mixture, b) heating of the powder by means of laser radiation, so that the second constituent melts at least partially and wets the first component, c) cooling, so that the powder solidifies. In order to compensate for shrinkage caused by laser sintering, the second constituent is converted into a second phase or a second phase mixture in step lit.c, wherein the specific volume of said second phase or mixture is twice as much as in the first phase or first phase mixture.</p> |
