ADDITIVE MANUFACTURING METHOD OF A TURBINE COMPONENT

摘要

A method for the manufacture of a component having a defined geometry comprises; a) defining a pre-component geometry comprising interim shape elements and additional, sacrificial elements for supporting interim shape elements; b) on a base plate, depositing multiple layers of a powder comprising a material from which the pre-component is to be manufactured; c) sintering the powder to form the pre-component to the defined pre-component geometry; d) removing at least some of the sacrificial elements from the pre-component; e) subjecting the remaining pre-component from step d) to a HIP step; and f) removing remaining sacrificial elements from the pre-component product of step e) to provide a component to the defined component geometry. In the definition of the pre-component geometry, the interim shape elements differ with respect to corresponding final shape elements in the defined component geometry such that during the HIP step, the interim shape elements adjust to form final shape elements in the defined component geometry.