ORBITAL WELDING INTERNAL PRESSURE CONTROL
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United States of America Patent
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Jun 6, 2006
Grant Date -
Jun 8, 2006
app pub date -
Dec 2, 2004
filing date -
Dec 2, 2004
priority date (Note) -
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status (Latency Note)
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Abstract
A weld bead geometry control system is provided for use in welding in abutment tubes or tubular components. The present invention can accurately and quickly correct for changes in purge gas pressure due to flow losses in real-time, to prevent any undesired protrusion or concavity of a molten weld bead, while allowing complete penetration of the weld. The present invention can additionally dynamically adjust the internal purge pressure to counteract the effects of gravitational pull on the molten weld bead. The weld bead geometry control system can in act in concert with existing orbital welding systems to consistently produce high quality and fully penetrated weld beads that meet or exceed industry standards.
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