Method for manufacturing ring-shaped member and manufacturing apparatus for same
Number of patents in Portfolio can not be more than 2000
United States of America
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Mar 10, 2020
Grant Date -
Sep 28, 2017
app pub date -
Aug 20, 2015
filing date -
Aug 20, 2015
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Construction is achieved that, together with preventing the occurrence of damage to a mandrel, is able to improve precision of the shape of a ring-shaped member after processing. A mandrel includes a pair of support shaft sections that are provided so as to be separated in the axial direction and so as to be concentric with each other, and a rolling shaft section that is concentrically provided in the axial direction between the pair of support shaft sections. One of the support shaft sections is provided in a state in which displacement in the axial direction with respect to the rolling shaft section is regulated. The other support shaft section is provided in a state in which displacement in a direction going away from the rolling shaft section is possible when a pressing force is applied in that direction.
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