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TA (1-18)/5 series aluminum alloy/TA (1-18) composite board and welding method

A technology of composite sheet and welding method, which is applied in welding equipment, non-electric welding equipment, metal processing equipment, etc., can solve the problems of unsolved double-sided explosive welding of titanium and high-strength aluminum alloy composite sheets

Active Publication Date: 2018-11-23
ARMY ENG UNIV OF PLA
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Problems solved by technology

Document 3 (CN201611176536.4) discloses a layered high-strength lightweight titanium-aluminum composite plate and its preparation method, and invented the preparation method of LY12 aluminum alloy base layer and TA18 titanium alloy clad layer. This invention is mainly aimed at TA18 and LY12 (thickness ratio of 1:2) to explosive welding of thick plates, followed by cold rolling and forming, but the problem of double-sided explosive welding of titanium and high-strength aluminum alloy composite thin plates has not been solved

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  • TA (1-18)/5 series aluminum alloy/TA (1-18) composite board and welding method

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Embodiment 1

[0035] The user needs TA2-5083-TA2 double-sided ballistic composite material, the size of the substrate 5083 is 5500mm×2500mm×14mm; the size of the compound board TA2 and the charge area are increased by 2δ at the detonation end 0 , increase δ on both sides and tail end respectively 0 , 1.5δ 0 , so the size of the double board is determined to be 5570mm×2550mm×1.5mm. Adopt 60# powder emulsion explosive, explosive thickness δ 0 = 20mm, use a 5mm spacing between the base plate and the doubler plate, and set a 20mm thick fiber protection board between the base plate and the foundation. Twice explosive welding is adopted, and the annealing temperature after the first explosive welding is 400°C, and after cooling with the furnace, leveling and surface treatment are carried out. Secondary explosion welding parameters: double board size is 5570mm×2550mm×1.5mm, 60 # Powdered emulsion explosive, explosive thickness δ 0 =19mm, a 4mm spacing is used between the base plate and the do...

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Abstract

In order to solve the technical problem that the aluminum alloy easily produces brittle crack or interface delamination in a single-sided or double-sided explosion welding process of the titanium andhigh-strength aluminum alloy composite board, by using the interface binding energy minimum principle, the window rule and the limit rule as the theoretical principles, the lower limit welding dynamicand static parameter windows of TA (1-18) / 5 series aluminum alloy / TA (1-18) are constructed and calculated, the sparse wave boundary effect eliminating technology, the aluminum alloy plate anti-deformation brittle crack control technology and the annealing process parameters for eliminating the explosion stress of the TA (1-18) / 5 series aluminum alloy / TA (1-18) single-sided or double-sided composite board are comprehensively used, the method for obtaining the TA (1-18) / 5 series aluminum alloy / TA (1-18) high-strength double-sided composite material with a welding rate of 100% and a complete set of welding process parameters is obtained from experiments, the onetime explosive welding of TA (1-18) / 5 series aluminum alloy composite material is achieved successfully, and the technical scheme and technological method are provided for the application of light high-strength high-corrosion-resistant composite materials.

Description

technical field [0001] The invention relates to a TA(1-18) / 5 series aluminum alloy / TA(1-18) double-sided composite plate and a welding method, and belongs to the comprehensive technical field of metal composite material manufacturing and explosive welding. TA (1-18) mainly refers to titanium plates such as TA1, TA2, TA3, TA9, TA10 and TA18, and 5 series aluminum alloy mainly refers to aluminum-magnesium alloy plates. Background technique [0002] Document 1 (CN201710996331.9) discloses an explosive welding forming method of a titanium-pure aluminum-aluminum alloy composite plate. Due to the difficulty in combining titanium and aluminum alloys, aluminum alloys are prone to brittle cracks and delamination during explosive welding, especially in the secondary explosion process. This invention uses pure aluminum as the transition layer to realize the explosive welding of titanium-aluminum alloy composite plates. Its essence is still the explosive welding of titanium and pure al...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K20/08
CPCB23K20/08
Inventor 史长根房中行杨旋
Owner ARMY ENG UNIV OF PLA
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