Analysis of Hydrostatic Extrusion of Composite Clad Rods

• Main Authors: Shih-Long Wong, 翁釋龍
• Other Authors: Ray-Quen Hsu
• Format: Others
• Language: zh-TW
• Published: 1999
• Online Access: http://ndltd.ncl.edu.tw/handle/37548836703206721752

碩士 === 國立交通大學 === 機械工程系 === 87 === One of the main characteristics of hydrostatic extrusion is that the billet is completely immersed in pressurized fluid. The energy consumed by the pressurized fluid is in no way less important than those consumed by the billet. The aim of this thesis is to propose an analytic model for hydrostatic extrusion process which will take into account the energy consumed by both the pressure transmitting fluid and the billet under going deformation. In this study, Newton’s Second Law and pipe flow model were adopted for the analysis of the fluid and pressure, meanwhile, upper bound theorem was used for the analysis of the deformation of composite rods or wire. The effects of processing parameters on the deformation behavior of the composite clad rod in hydrostatic extrusion process was discussed. Finally an experiment of the hydrostatic extrusion of composite clad rod was conducted, and its results were found very close with the results obtained from the analysis.