Metal deforming – By use of tool acting during relative rotation between tool... – During rotation of work
Patent
1979-01-11
1980-12-16
Larson, Lowell A.
Metal deforming
By use of tool acting during relative rotation between tool...
During rotation of work
72107, 72110, B21H 118
Patent
active
042389445
ABSTRACT:
A stepped shaft is rough-formed at a single work station by means of separate sets of rolls operating sequentially to rough-form shaft portions of different diameters. A first set of rolls operates to reduce the diameter of the entire workpiece to approximately the desired major diameter of the finished stepped shaft. Other sets of rolls operate to further reduce the diameters of selected portions of the shaft. In preferred practice the workpiece is pre-heated to a suitable work temperature and the entire rolling sequence is carried out rapidly to produce a rough-formed stepped shaft which will require a minimum of further machining.
REFERENCES:
patent: 503616 (1893-08-01), Peacock
patent: 559230 (1896-04-01), Weber
patent: 1301221 (1919-04-01), Brinkman
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