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碩士 === 國立中央大學 === 機械工程學系 === 101 === This paper investigates the influence of ultrasonic vibration on equal channel angular extrusion (ECAE),by designing a punch with axial ultrasonic vibration in ECAE process,to investigate punch load ,hardness,and gain size of workpiece in different punch speed an...

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Bibliographic Details
Main Authors: Wu-Hua Cheng, 陳昱樺
Other Authors: Ching-Wei Yeh
Format: Others
Language:zh-TW
Published: 2013
Online Access:http://ndltd.ncl.edu.tw/handle/70984955918469430032