An Isoviscous Model for the Hydrodynamic Lubrication of Plane Strain Forging Processes With Flat DiesSource: Journal of Tribology:;1974:;volume( 096 ):;issue: 004::page 539Author:W. R. D. Wilson
DOI: 10.1115/1.3452478Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Transient isoviscous hydrodynamic theory is used to investigate the lubrication of plane strain forging processes with flat dies. It is shown that during yielding a film which decreases from a maximum thickness at the center of the contact to zero at the edges is formed. As the deformation continues, the film is transported outwards at half the surface speed of the workpiece. In the case where the dies extend beyond the workpiece, an unlubricated region is formed. The variation in width of this region with reduction predicted by the model is in good agreement with experimental measurements.
keyword(s): Lubrication , Forging , Plane strain , Thickness , Measurement AND Deformation ,
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| contributor author | W. R. D. Wilson | |
| date accessioned | 2017-05-09T01:38:59Z | |
| date available | 2017-05-09T01:38:59Z | |
| date copyright | October, 1974 | |
| date issued | 1974 | |
| identifier issn | 0742-4787 | |
| identifier other | JOTRE9-28580#539_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/165238 | |
| description abstract | Transient isoviscous hydrodynamic theory is used to investigate the lubrication of plane strain forging processes with flat dies. It is shown that during yielding a film which decreases from a maximum thickness at the center of the contact to zero at the edges is formed. As the deformation continues, the film is transported outwards at half the surface speed of the workpiece. In the case where the dies extend beyond the workpiece, an unlubricated region is formed. The variation in width of this region with reduction predicted by the model is in good agreement with experimental measurements. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | An Isoviscous Model for the Hydrodynamic Lubrication of Plane Strain Forging Processes With Flat Dies | |
| type | Journal Paper | |
| journal volume | 96 | |
| journal issue | 4 | |
| journal title | Journal of Tribology | |
| identifier doi | 10.1115/1.3452478 | |
| journal fristpage | 539 | |
| journal lastpage | 546 | |
| identifier eissn | 1528-8897 | |
| keywords | Lubrication | |
| keywords | Forging | |
| keywords | Plane strain | |
| keywords | Thickness | |
| keywords | Measurement AND Deformation | |
| tree | Journal of Tribology:;1974:;volume( 096 ):;issue: 004 | |
| contenttype | Fulltext |