Keyhole threshold and morphology in laser melting revealed by ultrahigh-speed x-ray imaging-Reference-Cited by-同舟云学术

Keyhole threshold and morphology in laser melting revealed by ultrahigh-speed x-ray imaging

Published:2019-02-22 Issue:6429 Volume:363 Page:849-852
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Cunningham Ross¹^ORCID,Zhao Cang²^ORCID,Parab Niranjan²^ORCID,Kantzos Christopher¹,Pauza Joseph¹^ORCID,Fezzaa Kamel²,Sun Tao²^ORCID,Rollett Anthony D.¹^ORCID

Affiliation:

1. Department of Materials Science and Engineering, Carnegie Mellon University, 5000 Forbes Ave, Pittsburgh, PA, USA.

2. X-ray Science Division, Argonne National Laboratory, 9700 S Cass Ave, Lemont, IL, USA.

Abstract

The key to keyhole formation The formation of keyholes, or vapor-filled depressions, during laser welding presents a large problem for additive manufacturing. Cunningham et al. used high-speed x-ray imaging to take a detailed look at keyhole formation in a titanium alloy. They found a simplified relationship between operational parameters and keyhole shape, which may allow for the prevention of pore formation going forward. Science , this issue p. 849

Funder

U.S. Department of Energy

Office of Economic Adjustment

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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