FORMING DEVICE
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United States of America Patent
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app pub date -
Sep 27, 2017
filing date -
Mar 31, 2015
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Abstract
A forming device that expands a metal pipe material to form a metal pipe includes: an upper die and a lower die that form a main cavity part forming a main body part of the metal pipe and a sub-cavity part forming a flange part of the metal pipe by surfaces thereof opposed to each other; and a shielding member that prevents foreign matter discharged from the main cavity part or the sub-cavity part from scattering, the sub-cavity part is extended to be opened to the outside of the die in a direction crossing an extending direction of the metal pipe material, and the shielding member is provided on a line in which the sub-cavity part extends in the expanding of the metal pipe material.
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