Method of manufacturing a metal workpiece by oxygen cutting, oxygen-cutting device and metal workpiece obtained
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United States of America Patent
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Feb 21, 1995
Grant Date -
N/A
app pub date -
Jun 14, 1993
filing date -
Jun 12, 1992
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The workpiece is obtained by cutting a metal product by oxygen cutting. An oxygen cutting jet is sent onto a preheated cutting zone of the product. A peripheral sleeve of additional gas is formed around the oxygen cutting jet so as to send, into the cutting zone, a coaxial double jet constituted by the oxygen jet surrounded by the sleeve of gas at a pressure of less than 1 bar. The flow rate and the pressure of the cutting oxygen and of the additional gas are regulated separately. The invention also relates to an oxygen-cutting device for implementing the method and to the metal part obtained.
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