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Experimental Investigation on Hydromechanical Deep Drawing of Aluminum Alloy with Heated Media
Author(s) -
Lang Lihui,
Liu Baosheng,
Li Tao,
Zhao Xiangni,
Zeng Yuansong
Publication year - 2012
Publication title -
steel research international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.603
H-Index - 49
eISSN - 1869-344X
pISSN - 1611-3683
DOI - 10.1002/srin.201100231
Subject(s) - hydroforming , formability , materials science , metallurgy , deep drawing , microstructure , alloy , process window , aluminium , pyramid (geometry) , composite material , geometry , mathematics , lithography , optoelectronics , tube (container)
Temperature controlled sheet hydroforming is known as the innovative processing of warm/hot sheet hydroforming. Cylindrical cup hydromechanical deep drawing (HMD) at elevated temperature is the typical process for basic research. Warm HMD process was carried out on a warm sheet hydroforming experiment platform to investigate the influences of key processing parameters on formability. The process window of successful forming versus liquid pressure was obtained, which was manifested as a shape of pyramid. The region of successful forming in warm/hot sheet hydroming is a father set of that in cold sheet hydroforming. The microstructure evolution of cups formed by using warm HMD under the effect of temperature was investigated. The grain growth was observed compared with cold HMD. The hardness of hydroformed cup was tested and no apparent reduction of hardness was detected.