Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Ultrafast X-ray imaging of laser–metal additive manufacturing processes

Journal Article · · Journal of Synchrotron Radiation (Online)

The high-speed synchrotron X-ray imaging technique was synchronized with a custom-built laser-melting setup to capture the dynamics of laser powder-bed fusion processesin situ. Various significant phenomena, including vapor-depression and melt-pool dynamics and powder-spatter ejection, were captured with high spatial and temporal resolution. Imaging frame rates of up to 10 MHz were used to capture the rapid changes in these highly dynamic phenomena. At the same time, relatively slow frame rates were employed to capture large-scale changes during the process. This experimental platform will be vital in the further understanding of laser additive manufacturing processes and will be particularly helpful in guiding efforts to reduce or eliminate microstructural defects in additively manufactured parts.

Research Organization:
Argonne National Laboratory (ANL)
Sponsoring Organization:
University of Missouri System; University of Utah; Honeywell Federal Manufacturing and Technologies, LLC; USDOE Office of Science
DOE Contract Number:
AC02-06CH11357
OSTI ID:
1481907
Journal Information:
Journal of Synchrotron Radiation (Online), Journal Name: Journal of Synchrotron Radiation (Online) Journal Issue: 5 Vol. 25; ISSN 1600-5775; ISSN JSYRES
Publisher:
International Union of Crystallography
Country of Publication:
United States
Language:
English

References (44)

Additive manufacturing of metallic components – Process, structure and properties journal March 2018
MHz frame rate hard X-ray phase-contrast imaging using synchrotron radiation journal January 2017
Microstructural Control of Additively Manufactured Metallic Materials journal July 2016
Metal Additive Manufacturing: A Review journal April 2014
Additive manufacturing of metals journal September 2016
Gas gun shock experiments with single-pulse x-ray phase contrast imaging and diffraction at the Advanced Photon Source journal July 2012
Critical assessment of the fatigue performance of additively manufactured Ti–6Al–4V and perspective for future research journal April 2016
Cameras with On-chip Memory CMOS Image Sensors book September 2017
Phase-contrast imaging using polychromatic hard X-rays journal November 1996
Dynamic Mechanical Behavior of Additively Manufactured Ti6Al4V With Controlled Voids journal April 2015
Review of in-situ process monitoring and in-situ metrology for metal additive manufacturing journal April 2016
Deconvolution of acoustically detected bubble-collapse shock waves journal January 2017
In-situ characterization of laser-powder interaction and cooling rates through high-speed imaging of powder bed fusion additive manufacturing journal December 2017
In situ morphology-based defect detection of selective laser melting through inline coherent imaging journal May 2016
An instrument for in situ time-resolved X-ray imaging and diffraction of laser powder bed fusion additive manufacturing processes journal May 2018
Evaluating the Effect of Processing Parameters on Porosity in Electron Beam Melted Ti-6Al-4V via Synchrotron X-ray Microtomography journal January 2016
Rapid manufacturing of metal components by laser forming journal October 2006
Consolidation phenomena in laser and powder-bed based layered manufacturing journal January 2007
Laser powder-bed fusion additive manufacturing: Physics of complex melt flow and formation mechanisms of pores, spatter, and denudation zones journal April 2016
Feasibility study of propagation-based phase-contrast X-ray lung imaging on the Imaging and Medical beamline at the Australian Synchrotron journal January 2014
Full Field Deformation Measurements in Tensile Kolsky Bar Experiments: Studies and Detailed Analysis of the Early Time History journal January 2018
An open-architecture metal powder bed fusion system for in-situ process measurements journal August 2017
Luminescence from cavitation bubbles deformed in uniform pressure gradients journal September 2017
Investigation of laser consolidation process for metal powder by two-color pyrometer and high-speed video camera journal January 2013
In situ X-ray imaging of defect and molten pool dynamics in laser additive manufacturing journal April 2018
Denudation of metal powder layers in laser powder bed fusion processes journal August 2016
A study of the microstructural evolution during selective laser melting of Ti–6Al–4V journal May 2010
In situ absorptivity measurements of metallic powders during laser powder-bed fusion additive manufacturing journal December 2017
Observation of keyhole-mode laser melting in laser powder-bed fusion additive manufacturing journal December 2014
Perspectives on Additive Manufacturing journal July 2016
Pyrometric analysis of thermal processes in SLM technology journal January 2010
Measurement of process dynamics through coaxially aligned high speed near-infrared imaging in laser powder bed fusion additive manufacturing conference May 2017
Synchrotron-Based X-ray Microtomography Characterization of the Effect of Processing Variables on Porosity Formation in Laser Power-Bed Additive Manufacturing of Ti-6Al-4V journal January 2017
Fluid and particle dynamics in laser powder bed fusion journal January 2018
The metallurgy and processing science of metal additive manufacturing journal March 2016
Physical Aspects of Process Control in Selective Laser Sintering of Metals journal October 2003
Computer-Aided Design for Additive Manufacturing of Cellular Structures journal January 2007
Recyclability Study on Inconel 718 and Ti-6Al-4V Powders for Use in Electron Beam Melting journal October 2015
Metal vapor micro-jet controls material redistribution in laser powder bed fusion additive manufacturing journal June 2017
Thermographic measurements of the commercial laser powder bed fusion process at NIST journal August 2016
Real-time monitoring of laser powder bed fusion process using high-speed X-ray imaging and diffraction journal June 2017
Characterization of Metal Powders Used for Additive Manufacturing journal January 2014
A Global-Shutter CMOS Image Sensor With Readout Speed of 1-Tpixel/s Burst and 780-Mpixel/s Continuous journal January 2013
A plasma deflagration accelerator as a platform for laboratory astrophysics journal June 2017

Similar Records

In Situ Analysis of Laser Powder Bed Fusion Using Simultaneous High-Speed Infrared and X-ray Imaging
Journal Article · Mon Jul 27 00:00:00 EDT 2020 · JOM. Journal of the Minerals, Metals & Materials Society · OSTI ID:1774604

Uncertainties Induced by Processing Parameter Variation in Selective Laser Melting of Ti6Al4V Revealed by In-Situ X-ray Imaging
Journal Article · Mon Jan 10 23:00:00 EST 2022 · Materials · OSTI ID:1894937