Aviation aluminum alloy pre-stretching plate and production method thereof
2007
The invention relates to aluminium alloy pretensioning plates for aviation and a method for producing the same in order to solve the problem that the existing aluminium alloy plates are easy to be deformed in the machining and machining yield is low. The aliminium alloy pretensioning plates for aviation comprise, based on weight shares, Si of 0.20, Fe of 0.3, Cu of 1.7, Mn of 0.10, Cr of 0.22, Ti of 0.06, Mg of 2.5, Zn of 5.6, and the residuel of Al, the total of 100. The method for producing the aliminium alloy pretensioning plates for aviation includes the steps of : 1) admixture; 2) casting; 3) soak heating treat; 4) heating, hor rolling and cutting; 5) quenching, straightening; 6) pretensioning, ageing, sawing the plates according to the requirement of the product to produce aliminium alloy pretensioning plates for aviation. The plates product of the invention is steady without deforming in machining.
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