Method and device for fracture-splitting a workpiece
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United States of America Patent
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Nov 16, 2004
Grant Date -
Jul 29, 2004
app pub date -
Jan 13, 2004
filing date -
Apr 21, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention relates to a method for fracture-separating a workpiece which comprises one or more ring-shaped workpiece sections that are aligned axially one behind the other. The method comprises the following steps: fixing the workpiece for the fracture-separation process; axially introducing at least one expansion device into at least one borehole which is formed in each ring-shaped workpiece section; creating at least one fracture notch in at least one borehole during and/or after the axial introduction of the expansion device; and expanding the expansion device for fracture-separating at least one ring-shaped workpiece section. The invention also relates to a device which is suitable for carrying out said method.
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