ADAPTIVE ADDITIVE MANUFACTURING PROCESS USING IN-SITU LASER ULTRASONIC TESTING

摘要

An additive manufacturing process, including: selectively-heating a layer of powder (18) to form a solid deposit layer (10) having a solid deposit (28), where the solid deposit layer constitutes part (24) of a component, via a selective laser heating process; propagating ultrasonic energy waves (50, 60) through the solid deposit prior to completion of the component by using a wave generating laser (40) set apart from a surface (44) of the solid deposit to direct a wave-generating laser beam (42) at the surface; detecting propagated ultrasonic energy waves (62); assessing the propagated ultrasonic waves for information about a physical characteristic of the solid deposit; and forming another solid deposit layer (80) in response to the information obtained about the solid deposit.

主权项

1. An additive manufacturing process, comprising:
selectively heating a layer of powder to form a solid deposit layer comprising a solid deposit, wherein the solid deposit layer constitutes part of a component, via a selective laser heating process; propagating ultrasonic energy waves through the solid deposit prior to completion of the component by using a wave generating laser set apart from a surface of the solid deposit to direct a wave-generating laser beam at the surface; detecting propagated ultrasonic energy waves; assessing the propagated ultrasonic waves for information about a physical characteristic of the solid deposit; and forming another solid deposit layer in a manner responsive to the information.