Method for additive manufacturing of a wall for a turbine engine, comprising at least one cooling aperture

A method for additive manufacturing of a wall for a turbine engine, wherein the wall comprises a first cooling aperture, wherein the manufacturing method comprises additively manufacturing the wall by selective melting or selective sintering on a powder bed,

• wherein the wall is at least partially manufactured around the first cooling aperture with a lower zone at least partially delimiting a lower side of said first cooling aperture and an upper zone at least partially delimiting an upper side of said first cooling aperture, said lower side being further from a manufacturing plate than the upper side, said lower zone having a total thickness in a movement axis of a manufacturing plate of the powder bed of between 0.06 and 0.22 mm, wherein the lower zone is manufactured with a first energy input per unit length which is less than a second energy input per unit length for manufacturing an intermediate zone which forms most of the volume of the wall,
• wherein the intermediate zone delimits an intermediate side of the first cooling aperture in line with the first cooling aperture in the movement axis of the manufacturing plate,
• wherein the wall is manufactured around the first cooling aperture with the upper zone which is manufactured by a third energy input per unit length on the powder bed which is between 0.1300 J/mm and 0.1950 J/mm, and
• wherein the third energy input per unit length is equal to the second energy input per unit length with double energy exposure of the upper zone with respect to the intermediate zone.