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Magnesium/aluminum/titanium composite board cladding-rolling method

A technology of clad plate and magnesium alloy plate, applied in the direction of metal rolling, metal rolling, manufacturing tools, etc., can solve the problems of unsatisfactory regional cladding effect, reducing the bonding strength of plates, unable to clad successfully, etc., to reduce impurities and harmful Gas, improved bonding strength, easy deformation effect

Inactive Publication Date: 2016-03-30
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the traditional rolling process, the metal is plastically deformed by the strong pressure exerted by the rolling mill, and the deformation of the metal in the rolling direction and the width direction is difficult to be effectively restrained, so it will cause deformation of the plate, unsatisfactory composite effect in some areas, or even failure to successfully composite In addition, the current rolling compound method is to put the pretreated metal sheet directly into the heating furnace to heat to a certain temperature. During the heating and subsequent processing, it is inevitable that impurities or harmful gases will enter the pretreated Between the surfaces to be compounded, this will also reduce the bonding strength of the plates

Method used

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Embodiment 1

[0030] The rolling method of the present embodiment comprises the steps:

[0031] S1) Sheet annealing

[0032] First, pick the material:

[0033] Composite plate material: magnesium alloy AZ31, specification (length×width×height, the same below) 200×160×1.1mm; aluminum alloy AA6061, specification 200×160×0.9mm; titanium alloy TC4, specification 200×160×0.4mm;

[0034] Cladding layer material: aluminum alloy AA6061, upper and lower cover plates 220×180×1.1mm, frame 220×180×2.4mm, a through hole of 200×160mm is opened in the middle of the frame, and the four sides of the upper cover plate and the lower cover The four sides of the lower surface of the plate are chamfered.

[0035] Then, anneal the above materials, specifically: the magnesium alloy plate is heated to 350oC and kept for 30 minutes; the aluminum alloy plate is heated to 450oC and kept for 90 minutes; the titanium alloy plate is heated to 500oC and kept for 60 minutes; minute.

[0036] S2) Use an angle grinder to...

Embodiment 2

[0044] S1) Sheet annealing

[0045] First, pick the material:

[0046] Composite plate material: magnesium alloy AZ31, 200×16×0.9mm; aluminum alloy AA6061, 200×160×0.9mm; titanium alloy TC4, 200×160×0.2mm;

[0047]Cladding layer material: aluminum alloy AA6061, upper and lower cover plates 230×190×1.2mm, frame 230×190×2mm, a through hole of 200×160mm is opened in the middle of the frame, and the four sides of the upper cover plate and the lower cover plate The four sides of the lower surface are chamfered.

[0048] Then, anneal the above materials, specifically: magnesium alloy annealing temperature 350oC, annealing time 30 minutes; aluminum alloy annealing temperature 450oC, annealing time 90 minutes; titanium alloy annealing temperature 500oC, annealing time 60 minutes, coating material 450oC, annealing time 90 minutes.

[0049] S2) Use an angle grinder to assemble a steel brush to grind the surfaces to be compounded, that is, the two opposite surfaces between the magnesi...

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Abstract

The invention discloses a magnesium / aluminum / titanium composite board cladding-rolling method. According to the method, a cladding layer is used for the composite board during rolling, and through shape optimization of upper and lower cover plates of the cladding layer and design of rolling process parameters, the cladding layer and the cladded composite board can achieve coordinated deformation during rolling, so that the deformation behavior of the cladded composite board can be effectively restrained, the composite interface of the composite board is straight, and the bonding strength of the composite board is improved; the cladding layer can effectively reduce invasion of impurities and harmful gas to the composite interface, so that the bonding strength of the composite board can be further improved; and meanwhile, the use of the cladding layer can slow down loss of heat, so that metal is easy to deform during rolling.

Description

technical field [0001] The invention is a rolling method of a magnesium / aluminum / titanium composite plate. Background technique [0002] The magnesium / aluminum / titanium composite plate is mainly used in the outer buffer plate of the outer protective structure (Whipple) of the spacecraft, replacing the traditional single-layer aluminum alloy material, effectively protecting the spacecraft and prolonging the service life of the spacecraft. Magnesium alloy has low density and good electromagnetic protection; aluminum alloy has excellent plasticity; titanium alloy has high strength. The magnesium / aluminum / titanium composite plate combines the excellent characteristics of the three alloys, and has good high-speed impact resistance. When subjected to high-speed impact, the plate is fragmented and atomized, absorbing impact energy, and effectively protecting the inner structure. [0003] At present, the existing methods for preparing metal layered composite plates include: rolling...

Claims

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Application Information

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IPC IPC(8): B21B1/38B21B15/00
CPCB21B1/38B21B15/00B21B15/005B21B2001/386
Inventor 陈泽军李博新黄勇博张健祝润玉
Owner CHONGQING UNIV
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