Laser Welding ATI 425® Alloy

Abstract:

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Laser Beam Welding of ATI 425® Alloy was performed on 2.5 mm thick butt joints. This new alloy could be used in place of standard Ti-6Al-4V for a variety of lower-cost structural solutions. Demonstration of its fusion weldability with laser welding is of particular interest because it is a near-net- shape process, capable of high welding speeds, which will further enable lower cost manufacturing options. It was found that ATI 425® Alloy could be successfully welded using a fiber laser at speeds over 3 m/min. Microstructural, microhardness and tensile property evaluations were performed on the resulting welds. It was found that there was a 15% hardness increase in the weld and the strength of the joints was within 2% of base metal properties.

Info:

Periodical:

Edited by:

M. Ashraf Imam, F. H. Froes, Kevin F. Dring

Pages:

205-211

DOI:

10.4028/www.scientific.net/KEM.436.205

Citation:

P. Edwards et al., "Laser Welding ATI 425® Alloy", Key Engineering Materials, Vol. 436, pp. 205-211, 2010

Online since:

May 2010

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Price:

$35.00

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