METHOD AND SYSTEM FOR IN-PROCESS MONITORING AND QUALITY CONTROL OF ADDITIVE MANUFACTURED PARTS

摘要

A method for in-process monitoring of a 3D manufacturing apparatus or quality control of a 3D manufactured structure is provided. The method includes a generating step that generates an acoustic wave in the 3D manufactured structure. A receiving step receives the acoustic wave with a microphone array. An analyzing step analyzes a frequency spectrum of the acoustic wave. A determining step determines if the frequency spectrum indicates a defect in the 3D manufactured structure.