Manufacturing of high-strength laser welded joints of an industrial aluminum alloy of system Al-Cu-Li by means of post heat treatment

2019 ◽  
Vol 41 ◽  
pp. 101-110 ◽  
Author(s):  
Alexander Malikov ◽  
Anatoliy Orishich ◽  
Alexander Golyshev ◽  
Evgenij Karpov
Alloy Digest ◽  
1986 ◽  
Vol 35 (7) ◽  

Abstract UNS No. A97075 is a wrought precipitation-hardenable aluminum alloy. It has excellent mechanical properties, workability and response to heat treatment and refrigeration. Its typical uses comprise aircraft structural parts and other highly stressed structural applications where very high strength and good resistance to corrosion are required. This datasheet provides information on composition, physical properties, hardness, elasticity, tensile properties, and shear strength as well as fatigue. It also includes information on low temperature performance as well as forming, heat treating, and machining. Filing Code: Al-269. Producer or source: Various aluminum companies.


1979 ◽  
Vol 21 (9) ◽  
pp. 709-711
Author(s):  
V. M. Fedorov ◽  
V. I. Elagin ◽  
R. M. Sizova ◽  
A. S. Sokolov

1987 ◽  
Vol 1 (5) ◽  
pp. 426-431
Author(s):  
Yu V Skul'skii ◽  
A E Grabezhov ◽  
V G Vasol'ev ◽  
T A Kornienko ◽  
G I Nemirovskii

2020 ◽  
pp. 73-79
Author(s):  
Lechosław Tuz

The use of technologically advanced structural materials entails the necessity of adjusting typical welding processes to special requirements resulting from the limited weldability of certain material groups. Difficulties obtaining high-quality joints may be the consequence of deteriorated mechanical properties and structural changes in materials (beyond requirements of related standards). One of the aforementioned materials is steel characterised by a guaranteed yield point of 1300 MPa, where high strength is obtained through the addition of slight amounts of carbide-forming elements and the application of complex heat treatment processes. A heat input during welding may worsen the aforesaid properties not only in the weld but also in the adjacent material. The tests discussed in the article revealed that the crucial area was that heated below a temperature of 600°C, where the hardness of the material decreased from approximately 520 HV to 330 HV.


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