Process and apparatus for subjecting workpieces having annular shape to machining of their inner and outer surfaces
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United States of America Patent
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Issued Date -
Jul 15, 2004
app pub date -
Oct 24, 2003
filing date -
Jan 10, 2002
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The annular workpiece (P) to be machined is positioned by one of its bases and with axial alignment onto a cylindrical base structure (1) onto which the workpiece remains secured due to the presence of a suitable adhesive (2) which for example has been previously distributed onto the said base structure. After the setting of the adhesive, the workpiece to be machined is loaded onto the machine tool, so as to be clamped by the chuck of this latter through the base structure (1) which carries it, and no more directly as in the known art. The clamping forces of the chuck are thus discharged onto the base structure (1) and they do not deform at all the workpiece (P) which can be machined with high precision and quickly, both on its inner and outer surfaces and, if required, also on its free base. Upon completion of the machining operation, the workpiece is unloaded from the machine tool and is separated by the base structure by means of a simple and quick mechanical or chemical-physical operation, which neutralizes the action of the adhesive employed.
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