Flow-forming method and apparatus
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United States of America Patent
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-
Aug 20, 2002
Grant Date -
N/A
app pub date -
Nov 13, 2000
filing date -
Dec 15, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method for flow-forming a part having an inner collar and an outer collar surrounding the inner collar, including clamping a workpiece having a radial section to a spinning tool in a flow-forming machine, splitting a first material off the radial section while rotating the workpiece by radially infeeding at least one spinning roller having a separating edge to form and shape the inner collar against the spinning tool, axially engaging a sliding sleeve displaceably mounted on the spinning tool over the inner collar, splitting a second material off the radial section by radially infeeding the at least one spinning roller while rotating the workpiece, and pressing the second material against the sliding sleeve to form and shape the outer collar.
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