Original document(5 pages)  中文版
    The present invention provides an inner high-pressure formation process with low pressure source. One pressurizing piston with small diameter is acted by one low pressure source to enter one totally enclosed metal blank cavity filled with liquid to produce inner high pressure inside liquid to deform the metal blank. By means of the restriction of outer mold to wrap the metal blank, required shape and sizes are reached. The low pressure source and the inner liquid pressure are controlled via controlling the diameter, feeding rate and feeding distance of the pressurizing piston. The present invention has the features of low production cost, simple equipment and no medium purifying step.
Application Number
申请号		 02104881 Application Date
申请日		 2002.02.27
Title 名称 Inner high-pressure formation process with low pressure source
Publication Number
公开号		 1440843 Publication Date
公开日		 2003.09.10
Approval Pub. Date Granted Pub. Date
International Classification 分类号 B21D26/02
Applicant(s) Name
申请人		 Changchun Inst. of Automobile Materials
Address 地址 130011
Inventor(s) Name 发明人 Zhu Weicheng, Xu Chenglin
Attorney & Agent 代理人 liu yuren
More information 更  多  信  息


 Related patents information
Inner high pressure and reducing formation process of automobile axle shell
Integrated extruding method for automobile axle shell
Google
Note:All patent data come from State Intellectual Property Office of the People's Republic of China. If there were discrepancies between here and the State Intellectual Property office, the later is more accurate. The patent data is only for public exchange and learning purposes. We are not responsible for the adverse consequences with unverified use of the data.