Reasons and counterneasures for cracks in 7021 aluminum alloy large flat ingot for aviation containers
7021 aluminum alloy is widely used in aviation containers due to its excellent characteristics.With the increase of product size,the required ultra-large flat ingots are prone to crack defects.After obseving the crack morphology,the experiment systematically analyzes the effects of chemical composition,melt quality,casting tools and processes on cracks in the melting and casting process.The process optimization direction and effective control measures for solving cracks in 7021 aluminum alloy flat ingots have been proposed.
7021 aluminum alloy large flat ingotaviation containermelting and cast-ingcrackcasting process parameter
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