Parting tool
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Sep 9, 2003
Grant Date -
N/A
app pub date -
Nov 16, 2000
filing date -
Nov 16, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A parting tool for continuous chipless separation of identical parts from a rotation-symmetric workpiece, includes a cutting roller having a main body advancing a workpiece in a transport direction from an entry side to an exit side. The main body has a slip bevel at the entry side and a cutting screw including a screw thread having coils which define a helix line and are configured with an increase in height. The screw thread includes in series an entry portion, a substantially cylindrical primary portion and a separating portion, whereby the coils in the entry portion, primary portion and separating portion having different slope angle, with the slope angle determined by a combination of a thickness of the screw thread and a root width between two neighboring coils of the screw thread, wherein the increase in height of the coils correlates to the helix line.
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