Next Article in Journal
Mechanical Properties of Tool Steels with High Wear Resistance via Directed Energy Deposition
Previous Article in Journal
Effect of Hydrogen on the Wear Resistance of Steels upon Contact with Plasma Electrolytic Oxidation Layers Synthesized on Aluminum Alloys
Previous Article in Special Issue
High-Velocity Impact Welding Process: A Review
Article Menu
Issue 3 (March) cover image

Export Article

Open AccessArticle
Metals 2019, 9(3), 281;

Characteristics of Flyer Velocity in Laser Impact Welding

National Center for Materials Service Safety, University of Science and Technology Beijing, Beijing 100083, China
School of Mechanical Engineering and Automation, Beihang University, Beijing 100191, China
Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing 100191, China
Author to whom correspondence should be addressed.
Received: 11 January 2019 / Revised: 17 February 2019 / Accepted: 26 February 2019 / Published: 1 March 2019
(This article belongs to the Special Issue Impact Welding of Materials)
Full-Text   |   PDF [2470 KB, uploaded 1 March 2019]   |  


The flyer velocity is one of the critical parameters for welding to occur in laser impact welding (LIW) and plays a significant role on the welding mechanism study of LIW. It determines the collision pressure between the flyer and the target, and the standoff working distance. In this study, the flyer velocity was measured with Photon Doppler Velocimetry under various experimental conditions. The laser energy efficiency was compared with measured flyer velocity for various laser energy and flyer thickness. In order to reveal the standoff working window, the peak flyer velocity and flyer velocity characteristic before and after the peak velocity and the flyer velocity was measured over long distance. In addition, the rebound behavior of the flyer was captured to confirm the non-metallurgical bonding in the center of the weld nugget in LIW. Furthermore, the flyer size and confinement layer effect on the flyer velocity were investigated. View Full-Text
Keywords: flyer velocity; energy efficiency; peak velocity; flyer rebound; flyer size; confinement layer flyer velocity; energy efficiency; peak velocity; flyer rebound; flyer size; confinement layer

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Share & Cite This Article

MDPI and ACS Style

Wang, H.; Wang, Y. Characteristics of Flyer Velocity in Laser Impact Welding. Metals 2019, 9, 281.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Metals EISSN 2075-4701 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top