Influence of machining on mechanical and fatigue properties of sheets from aluminum-lithium alloys 1441 and V-1481

Grigoriev M.V., Oglodkov M.S.
UDC
669.175::669.884
DOI
10.18577/2307-6046-2018-0-4-20-27
Article PDF (Russian) (545.33 KB)
How to cite
Grigoriev M.V., Oglodkov M.S. Influence of machining on mechanical and fatigue properties of sheets from aluminum-lithium alloys 1441 and V-1481 // Proceedings of VIAM. 2018. No. 4. DOI: 10.18577/2307-6046-2018-0-4-20-27. URL: https://test.viam.ru/en/journal/2018/4/3
Keywords
aluminum-lithium alloys, laser-beam cutting, hydroabrasive cutting, machining, sheets.
Abstract

The state-of-the-art review of domestic and foreign literature on technologies of laser-beam and hydroabrasive cutting of semi-finished products from aluminum alloys is carried out. The main tendencies of development are revealed and the assessment of the current level of researches is carried out. Technological modes of milling, hydroabrasive and laser-beam cutting of sheets from alloy V-1481T1 1,5 and 3,0 mm thick and sheets from alloy 1441Т1 the 1,5 mm thick are investigated and fulfilled. It is established that at laser-beam cutting for sheets from alloy 1481 lack of defects (fin, not cuts) is provided at the radiant power not less than 3 and 4 kW respectively, thus the best quality of edges of the machine cut corresponds to the speed of 10 m/min. for both thickness, and for sheets from alloy 1441 – at the radiant power not less than 2 kW respectively, thus the best quality of edges of the machine cut corresponds to the speed of 7,5 m/min. The best quality of edge of leaf after

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