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

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发表日期：

2024年2月1日

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V. B. Shulyatyev,
M. A. Gulov,
E. V. Karpov,
A. G. Malikov,
A. A. Filippov

摘要

Abstract

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 CO₂ 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.