Synchronized in situ X-ray and infrared imaging of laser deposition. (January 2022)

• Record Type: Journal Article
• Authors: Wolff, Sarah J.; Gould, Benjamin
• Is Part Of: Manufacturing letters. Volume 31(2022)
• Page Start: 87
• Page End: 90
• Publication Date: 2022-01
• Subjects: Laser deposition -- Powder deposition -- In situ monitoring -- X-ray imaging -- Thermal imaging -- Dilution; Manufacturing industries -- Periodicals; Production engineering -- Periodicals; Manufacturing industries; Periodicals; 670
• DOI: 10.1016/j.mfglet.2021.07.014
• Languages: English
• ISSNs: 2213-8463

Abstract

Abstract: Laser deposition is a growing additive manufacturing process for its applications in repair and functional graded materials. This study investigates the influence of powder deposition for Ti-6Al-4V using synchronized X-ray and thermal infrared imaging. Melt pool geometry and their theoretical estimates as well as thermal histories are compared between a clad without and with powder deposition. The results show how powder deposition causes fluctuations in geometry and thermal histories. Fundamental understanding of the influence of powder deposition into a melt pool can lead to better prediction of melt pool geometry, thermal history, and better controlled processing.