MANUFACTURING A COMPONENT OF SINGLE CRYSTAL OR DIRECTIONALLY SOLIDIFIED MATERIAL

摘要

A method for manufacturing a component of a single crystal or a directionally solidified material is provided that includes: superimposing a powder layer of a first material onto a surface of a substrate out of a second, single crystal or directionally solidified, material; transforming the powder layer into a substrate layer by altering a physical condition of the first material of the powder by applying energy to the powder layer; wherein the second material of the substrate has a grain orientation and the material of the substrate layer has a grain orientation; wherein the material of the substrate layer adopts the same grain orientation as the grain orientation of the substrate during the transforming process and wherein the steps are repeated till the component has grown layer by layer into the predefined shape while a process temperature is maintained below a melting temperature of at least the first material.