Effect of Pulse Duty Cycle on Inconel 718 Laser Welds 892299
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.
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. Download Citation
Author(s):
M. H. McCay, T. D. McCay, N. B. Dahotre, C. M. Sharp, A. Sedghinasab, S. Gopinathan
Affiliated:
Center for Laser Applications University of Tennessee Space Institute Tullahoma, TN
Pages: 12
Event:
Aerospace Technology Conference and Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
The Use of Lasers in Manufacturing-SP-0794, SAE Transactions Journal of Aerospace-V98-1
Related Topics:
Welding
Lasers
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