Plasma cutting process and unit with current slaved to the plasma gas
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United States of America Patent
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Issued Date -
Aug 11, 2005
app pub date -
Jan 27, 2005
filing date -
Jan 27, 2004
priority date (Note) -
Abandoned
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Abstract
A plasma cutting process for cutting a metal workpiece using a plasma cutting torch supplied with electrical current and with at least plasma gas. At least one portion of the current ramp-up used at the start of cutting and/or of the current ramp-down used at the end of cutting, respectively, is slaved to the ramp-up in pressure and/or in flow rate of the gas used, at the start of cutting, and/or the ramp-down in pressure and/or in flow rate of the gas used, at the end of cutting.
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