METHOD FOR ASSEMBLING A TITANIUM SHELL WITH A TITANIUM FIRE RESISTANT ALLOY SHELL
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United States of America Patent
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app pub date -
Jul 18, 2012
filing date -
Jul 22, 2011
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Abstract
A method for assembling metal shells, including: (a) providing a first shell made of a titanium fire-resistant alloy with a shape similar to a final shape thereof and having first and second opposite surfaces, the second surface including raised portions acting as anchoring points between shells; (b) providing at least one second shell made of a titanium alloy and having first and second opposite surfaces; (c) placing the first surface of the second shell on the second surface of the first shell; (d) heating the second shell to a temperature higher than a second temperature; (e) deforming the second shell at the second temperature on the first shell, such that the first surface of the second shell matches the second surface of the first shell, the second shell thus being secured to the first shell; and (f) cooling an assembly of the first and second shells to ambient temperature.
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