Methods and systems for quality feedback and quality control in additive manufacturing processes

摘要

In this disclosure, an additive manufacturing method is described, which includes monitoring a temperature of a portion of a build-up level during an additive manufacturing operation using a temperature sensor while a heat source passes through the portion of the build-up level, detecting a peak temperature associated with one or more passes of the heat source associating the portion of the build-up level, determining a threshold temperature by reducing the peak temperature by a predetermined amount, determining a time interval in which the monitored temperature exceeds the threshold temperature, identifying a change in manufacturing conditions that is likely to result in a manufacturing error Use of the time interval and changing a process parameter of the heat source in response to the change in the production conditions includes.