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Effect of pulse duty cycle on Inconel 718 laser weldsCrack 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.
Document ID
19960022970
Acquisition Source
Headquarters
Document Type
Conference Paper
Authors
McCay, M. H.
(Tennessee Univ. Space Inst. Tullahoma, TN United States)
McCay, T. D.
(Tennessee Univ. Space Inst. Tullahoma, TN United States)
Dahotre, N. B.
(Tennessee Univ. Space Inst. Tullahoma, TN United States)
Sharp, C. M.
(Tennessee Univ. Space Inst. Tullahoma, TN United States)
Sedghinasab, A.
(Tennessee Univ. Space Inst. Tullahoma, TN United States)
Gopinathan, S.
(Tennessee Univ. Space Inst. Tullahoma, TN United States)
Date Acquired
August 17, 2013
Publication Date
October 26, 1989
Publication Information
Publication: Overview of the Center for Advanced Space Propulsion
Subject Category
Structural Mechanics
Accession Number
96N71341
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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