Laser assisted casting of cooling hole and related system

摘要

Various embodiments include methods and related systems for laser-assisted casting. Some embodiments include a method including: performing laser ablation to a preliminary wax casting model to form a modified wax model including at least one cooling hole absent from the wax casting substrate; coating the modified wax model to form a mold shape around the modified wax model; and removing the modified wax model to leave a casting mold including the at least one cooling hole.

主权项

1. A system comprising:
a laser system programmed to perform laser ablation to a preliminary wax casting model to form a modified wax model of a turbomachinery part including at least one cooling hole absent from the preliminary wax casting model, wherein the performing of the laser ablation includes applying an ultra-short-pulse laser to the preliminary wax casting model to directly vaporize a portion of the preliminary wax casting model, forming the at least one cooling hole, wherein the cooling hole has an aspect ratio of approximately 5 to approximately 10; an imaging system including an optical trepanning system for scanning the modified wax model of the turbomachinery part to image the at least one cooling hole after the performing of the laser ablation; a coating system for coating the modified wax model of the turbomachinery part to form a mold shape around the modified wax model of the turbomachinery part, and removing the modified wax model of the turbomachinery part to leave a casting mold including the at least one cooling hole; and a casting system for casting a shape from a casting material using the casting mold having the at least one cooling hole.