Rotary Cutting Tool, Method of Cutting Billet for Manufacturing Seamless Pipe or Tube, and Method of Manufacturing Seamless Pipe or Tube
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United States of America Patent
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Issued Date -
Feb 24, 2011
app pub date -
Dec 15, 2008
filing date -
Mar 31, 2008
priority date (Note) -
Abandoned
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Abstract
An object of the present invention is to provide a rotary cutting tool, a method of cutting a billet for manufacturing a seamless pipe, and a method of manufacturing the seamless pipe, which are capable of restraining the occurrence of an outer surface flaw on the seamless pipe. tilts at an angle θ not smaller than 1 degree and not larger than 10 degrees with respect to the thickness direction Y intersecting at right angles to the direction of rotation X.
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