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Record 1 of 2293
Effect of pulse duty cycle on Inconel 718 laser welds
Offline Availability: Go to Request Form
Author and Affiliation:
McCay, M. H.(Tennessee Univ. Space Inst., Center for Laser Applications., Tullahoma, TN United States)
McCay, T. D.(Tennessee Univ. Space Inst., Center for Laser Applications., Tullahoma, TN United States)
Dahotre, N. B.(Tennessee Univ. Space Inst., Center for Laser Applications., Tullahoma, TN United States)
Sharp, C. M.(Tennessee Univ. Space Inst., Center for Laser Applications., Tullahoma, TN United States)
Sedghinasab, A.(Tennessee Univ. Space Inst., Center for Laser Applications., Tullahoma, TN United States)
Gopinathan, S.(Tennessee Univ. Space Inst., Center for Laser Applications., Tullahoma, TN United States)
Abstract: 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.
Publication Date: Oct 26, 1989
Document ID:
19960022970
(Acquired Jul 03, 1996)
Accession Number: 96N71341
Subject Category: STRUCTURAL MECHANICS
Document Type: Conference Paper
Publication Information: Overview of the Center for Advanced Space Propulsion; (NASA-CR-199690); (SEE 19960022963)
Financial Sponsor: NASA; Washington, DC United States
Organization Source: Tennessee Univ. Space Inst.; Center for Laser Applications.; Tullahoma, TN United States
Description: 9p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: No Copyright
NASA Terms: INCONEL (TRADEMARK); PULSED LASERS; WELDED JOINTS; LASER WELDING; PULSE RATE; CARBON DIOXIDE LASERS; POROSITY; MICROSTRUCTURE; HEAT AFFECTED ZONE
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