A Study on Complex Extrusion of Multi-Billet
碩士 === 國立台灣工業技術學院 === 機械工程技術研究所 === 85 === This investigation is based on the upper bound theorem and referred to the generalized velocity field submitted by M. KIUCHI et al. to develop an analy- itical model of complex extrusion of m...
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ndltd-TW-085NTUST4880722016-07-01T04:15:48Z http://ndltd.ncl.edu.tw/handle/86571774949912768332 A Study on Complex Extrusion of Multi-Billet 多軸金屬複合擠製加工之研究 Chien, Jien Shine 簡進興 碩士 國立台灣工業技術學院 機械工程技術研究所 85 This investigation is based on the upper bound theorem and referred to the generalized velocity field submitted by M. KIUCHI et al. to develop an analy- itical model of complex extrusion of multi-billets. In complex extrusion of multi- billets forming process,two billets are extruded through die simultane-lousiy then combined to the desired dimension.During the extrusion process, several process variables always affect the desired quality of product, such as cone angle of the die, cross section reduction ratio, friction coefficient, billets and die dimension, ratio of the strength of two metal,initial veloci- ty of billet and velocity variationon the interface of bonding. In this study, some of the process variables are fixed,the velocity varia- tion on the interface of bonding is only independent variable considered in the simulation.Using the simplex method to find the minimum energy of deform- ation and optimal proces variable during extrusion. Furthermore, some experiments are performed by using lead and tin,from the result of the extrudes metal and bonding condition of the interface, we can verify the usefulness of the analytical model developed in this study. Chou Chen-Chia 向四海 1997 學位論文 ; thesis 94 zh-TW |
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碩士 === 國立台灣工業技術學院 === 機械工程技術研究所 === 85 === This investigation is based on the upper bound theorem and
referred to the generalized velocity field submitted by M.
KIUCHI et al. to develop an analy- itical model of complex
extrusion of multi-billets. In complex extrusion of multi-
billets forming process,two billets are extruded through die
simultane-lousiy then combined to the desired dimension.During
the extrusion process, several process variables always affect
the desired quality of product, such as cone angle of the die,
cross section reduction ratio, friction coefficient, billets and
die dimension, ratio of the strength of two metal,initial
veloci- ty of billet and velocity variationon the interface of
bonding. In this study, some of the process variables are
fixed,the velocity varia- tion on the interface of bonding is
only independent variable considered in the simulation.Using the
simplex method to find the minimum energy of deform- ation and
optimal proces variable during extrusion. Furthermore, some
experiments are performed by using lead and tin,from the result
of the extrudes metal and bonding condition of the interface, we
can verify the usefulness of the analytical model developed in
this study.
|
author2 |
Chou Chen-Chia |
author_facet |
Chou Chen-Chia Chien, Jien Shine 簡進興 |
author |
Chien, Jien Shine 簡進興 |
spellingShingle |
Chien, Jien Shine 簡進興 A Study on Complex Extrusion of Multi-Billet |
author_sort |
Chien, Jien Shine |
title |
A Study on Complex Extrusion of Multi-Billet |
title_short |
A Study on Complex Extrusion of Multi-Billet |
title_full |
A Study on Complex Extrusion of Multi-Billet |
title_fullStr |
A Study on Complex Extrusion of Multi-Billet |
title_full_unstemmed |
A Study on Complex Extrusion of Multi-Billet |
title_sort |
study on complex extrusion of multi-billet |
publishDate |
1997 |
url |
http://ndltd.ncl.edu.tw/handle/86571774949912768332 |
work_keys_str_mv |
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1718329660801024000 |