| Composite laminates as a material that can give full play to and make gooduse of such a layer of metal material properties of members, is currently inmany industries favored. As a magnesium alloy "renewable resources", itsadvantages which are wildly used, however its own corrosion resistance limitsthe development of itself. At the same time, better performance in all aspects,the most important thing is that they have good resistance to corrosionperformance, if a combination of both materials that will greatly improve theiruse range and their performance will be better. Also this new marital may hasmore application.5052/AZ31/5052magnesia-alumina composite plate as thisnew type of composite material has broad application prospects. There are threemain previous studies aspects, the first is the preparation of magnesia-aluminacomposite plate and preparation before and after the heat treatment process, thesecond is the performance of the microstructure of magnesia-alumina compositeplate, the last one is focusing on its formability. This paper considers the mostimportant things is what laminates will affect crew performance layer laminates,and the proportion of each performance crew layer laminates will have someimpacts. This paper researches the mechancial properties and drawing properties of two thickness ratio of magnesia-alumina composite plate which under theguidance can be prepared as magnesia-alumina composite plateto provide areference.This paper researches the magnesia-alumina composite plateof differentthickness ratio under four pass hot rolling forming to resulting laminatesthickness ratio and deformation. From the research we can know that afterrolling the performance of different thickness of magnesium-aluminumlaminates members layer, the magnesium plate more easily deformationcompared to the aluminum plate, so magnesium plate deformation is asignificant proportion of total deformation, aluminum plate rose compared tomagnesium plate, and when the aluminum thickness from0.7mm becomes0.38mm, the aluminum will tends to be close to the hard deformation zone.Secondly, by comparing two different thickness ratio and the mechanicalproperties of magnesia-alumina composite plate basic parameters andmicrostructure which to compare the performance of the sheet thickness ratio toget which is better. The result shows that: at room temperature mechanicalproperties of a thickness ratio of1:4:1is better than layered sheet laminatedplate thickness ratio of1:7:1, the characteristic is that it has a small yield ratio,high elongation, and hardness values are slightly higher, however at200℃, thethickness ratio of the mechanical properties of plywood layer of1:7:1has beensignificantly improved and exceeds the thickness ratio of the laminates of1:4:1.In addition, in the micro organization, combined with different thickness ratio of composite laminates with interface layer and morphology，they are in a samesituation.Finally compared of two kinds of thickness ratio of the laminate at roomtemperature,200degrees and230degreese, limit drawing ratio、hardness、maximum thinning rate and so on.Test results that: at room temperature, athickness ratio of1:4:1Laminates has a better formability, its LDR is1.32;however at a molding temperature of200℃and230℃, the thickness ratio ofthe laminated of1:7:1exhibits better formability, its LDR is3.1in200℃, betterto2.9of1:4:1, the thickness ratio of the laminated of1:7:1exhibits betterformability, its LDR is3.0in230℃, better to2.7of1:4:1.When the temperturerise,obviously, the deep drawing ability difference value of two kinds ofthickness ratio of laminated plate increase. Obviously, the proportion ofdifferent aluminum laminates can significantly affect performance at differentforming temperatures. |
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