Forming device
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United States of America Patent
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Aug 25, 2020
Grant Date -
Jan 18, 2018
app pub date -
Sep 27, 2017
filing date -
Mar 31, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
A forming device that forms a metal pipe by blow forming includes: a gas supply part that supplies a gas to a metal pipe material to expand the metal pipe material; a die attachment part to which a die that is brought into contact with the expanded metal pipe material to form the metal pipe is attached; a gas discharge part that discharges the gas from the metal pipe material; and a pressure detector that detects a pressure of the gas, the gas supply part includes a gas compression part that compresses the gas, and a supply line that transfers the gas compressed by the gas compression part to the metal pipe material, the gas discharge part includes a discharge line that transfers the discharged gas, and the pressure detector is provided in each of the supply line and the discharge line.
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