MECHANICAL PROPERTIES OF AVIATION ALUMINUM–LITHIUM ALLOY SAMPLES OBTAINED BY PLASMA-ASSISTED LASER CUTTING

Results of tensile and low-cycle fatigue testing of samples made of an aluminum–lithium alloy of the Al–Mg–Li system obtained by plasma-assisted laser cutting performed by a pulsed CO 2  laser in an argon jet with the laser beam and optical discharge plasma simultaneously affecting the material are...

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Bibliographic Details
Published in:Journal of applied mechanics and technical physics 2024, Vol.65 (1), p.18-25
Main Authors: Shulyatyev, V. B., Gulov, M. A., Karpov, E. V., Malikov, A. G., Filippov, A. A.
Format: Article
Language:English
Subjects:
Aluminum-lithium alloys
Applications of Mathematics
Argon jets
Carbon dioxide
Carbon dioxide lasers
Classical and Continuum Physics
Classical Mechanics
Continuous beams
Fatigue tests
Fluid- and Aerodynamics
Laser beam cutting
Low cycle fatigue
Magnesium
Mathematical Modeling and Industrial Mathematics
Mechanical Engineering
Mechanical properties
Metal fatigue
Optical properties
Physics
Physics and Astronomy
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Summary:Results of tensile and low-cycle fatigue testing of samples made of an aluminum–lithium alloy of the Al–Mg–Li system obtained by plasma-assisted laser cutting performed by a pulsed CO 2  laser in an argon jet with the laser beam and optical discharge plasma simultaneously affecting the material are reported. Low-cycle fatigue tests show that the number of loading cycles survived by the sample obtained by plasma-assisted laser cutting is more than twice greater than the number of cycles survived by the samples obtained by conventional laser cutting with a continuous beam.
ISSN:0021-8944
1573-8620
DOI:10.1134/S0021894424010036