Aerospace
Technical Paper

Effect of Pulse Duty Cycle on Inconel 718 Laser Welds

892299

09/01/1989

Event
Aerospace Technology Conference and Exposition
Authors
M. H. McCay Center for Laser Applications University of Tennessee Space Institute Tullahoma, TN
T. D. McCay Center for Laser Applications University of Tennessee Space Institute Tullahoma, TN
N. B. Dahotre Center for Laser Applications University of Tennessee Space Institute Tullahoma, TN
C. M. Sharp Center for Laser Applications University of Tennessee Space Institute Tullahoma, TN
A. Sedghinasab Center for Laser Applications University of Tennessee Space Institute Tullahoma, TN
S. Gopinathan Center for Laser Applications University of Tennessee Space Institute Tullahoma, TN
Abstract
Content
Crack sensitive Inconel 718 was laser pulse welded using a 3.0 kW CO2 laser. Weld shape, structure and porosity were recorded as a function of the pulse duty cycle. Within the matrix studied, the welds were found to be optimized at a high (17 ms on, 7 ms off) duty cycle. These welds were superior in appearance and lack of porosity to both low duty cycle and CW welds.
Meta Tags
Topics
Welding
Lasers
Affiliated or Co-Author
Center for Laser Applications University of Tennessee Space Institute Tullahoma, TN
Details
DOI
https://doi.org/10.4271/892299
Pages
12
Citation
McCay, M., McCay, T., Dahotre, N., Sharp, C. et al., "Effect of Pulse Duty Cycle on Inconel 718 Laser Welds," SAE Technical Paper 892299, 1989, https://doi.org/10.4271/892299.
Additional Details
Publisher
SAE International
Published
Sep 1, 1989
Product Code
892299
Content Type
Technical Paper
Language
English