DC Field | Value | Language |
---|---|---|
dc.contributor.author | 김종호 | ko |
dc.contributor.author | 류민영 | ko |
dc.contributor.author | 양동열 | ko |
dc.date.accessioned | 2013-02-27T04:29:32Z | - |
dc.date.available | 2013-02-27T04:29:32Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 1989-05 | - |
dc.identifier.citation | 대한기계학회논문집A, v.13, no.3, pp.345 - 352 | - |
dc.identifier.issn | 1226-4873 | - |
dc.identifier.uri | http://hdl.handle.net/10203/66455 | - |
dc.description.abstract | Upsetting of non-circular blocks is characterized by the three-dimensional deformation with lateral sidewise spread as well as axial bulging along thickness. A kinematically admissible velocity field for the upsetting of prismatic or non-prismatic blocks is proposed which considers the different frictional conditions at the top and bottom surfaces of a billet. From the proposed velocity field the upper-bound load and the deformed configuration are determined by minimizing the total power consumption with respect to some chosen parameters. Experiments are carried out with annealed SM 15C steel billets at room temperature for different billet shapes and frictional conditions. The theoretical predictions both in the forging load and the deformed configurations are shown to be in good agreement with the experimental observations. Therefore, the velocity field proposed in this work can be used for the prediction of forging load and deformation in upsetting of prismatic or non-prismatic blocks, considering the different frictional conditions at two flat dies. | - |
dc.language | Korean | - |
dc.publisher | 대한기계학회 | - |
dc.title | 상하면의 마찰이 틀린 비직각주 소재의 3차원 업셋팅에 관한 연구 | - |
dc.title.alternative | A study on the three-dimensional upsetting of non-prismatic blocks considering different frictional conditions at two flat dies | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.citation.volume | 13 | - |
dc.citation.issue | 3 | - |
dc.citation.beginningpage | 345 | - |
dc.citation.endingpage | 352 | - |
dc.citation.publicationname | 대한기계학회논문집A | - |
dc.contributor.localauthor | 양동열 | - |
dc.contributor.nonIdAuthor | 김종호 | - |
dc.contributor.nonIdAuthor | 류민영 | - |
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