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rotary planetary 나사전조(rotary planetary thread rolling)

recent years, planetary thread rollers have been adapted to reduce labor and handling, roll smaller batches of higher-quality parts and to allow use by less skilled operators.
During planetary thread rolling, threads are imprinted when the work piece travels between a fixed die and a moving rotary die. Unlike rolling with flat dies that must continually stop and start again planetary rolling can accomplish high speed operations because the dies do not need to stop moving.

rotary die rotary die

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