Apparatus for making variable diameter holes in metal plates
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United States of America Patent
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May 6, 2014
Grant Date -
Jan 14, 2010
app pub date -
Jul 7, 2009
filing date -
Jul 10, 2008
priority date (Note) -
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Abstract
An apparatus for making variable diameter and shape holes through metal plates in a sheet plate machining gantry machine comprises two parallel cross members and two horizontal parallel guides integral with the cross members and supporting a horizontal cross arm which is controllably driven on the guides, the horizontal arm supporting horizontal parallel guides therealong is controllably driven an apparatus including a milling tool which can controllably driven in a vertical plane. The method comprises the step of controllably simultaneously driving a two-fluted mill both in a vertical plane (Z), and in a horizontal plane (U).
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