Method of producing forged product
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United States of America Patent
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Dec 29, 2020
Grant Date -
Oct 4, 2018
app pub date -
Mar 27, 2018
filing date -
Mar 28, 2017
priority date (Note) -
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status (Latency Note)
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Abstract
A method of producing a forged product is described, in which a forging component is hot-forged using a lower die and an upper die. The method includes a first process in which at least a part of an die face of the lower die is covered with a first glass lubricant; a second process in which the lower die is heated; a third process in which at least a part of the forging component is covered with a second glass lubricant; a fourth process in which the forging component is heated to a temperature that is higher than a heating temperature of the lower die in the second process; and a fifth process in which the forging component is placed on the die face of the lower die and hot forging is performed using the lower die and the upper die.
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