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RESEARCH PAPERS

Prevention of Fracture of Cracked Steel Bars Using Laser: Part I—Laser Hardening

[+] Author and Article Information
Akira Kato

Department of Mechanical Engineering, Chubu University, Kasugai, Aichi, 487 Japan

J. Eng. Mater. Technol 107(3), 195-199 (Jul 01, 1985) (5 pages) doi:10.1115/1.3225801 History: Received July 09, 1984; Online September 23, 2009

Abstract

This paper investigates the effect of laser hardening on cracked steel specimens. After laser hardening around precracked shafts of SAE 1015 steel, rotary bending fatigue strength was determined. The results showed that the fatigue strength of specimens with a small crack can be raised to the strength of virgin specimens. Therefore this method may be used as a technique for fatigue fracture prevention of steel components containing cracks.

Copyright © 1985 by ASME
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