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Vol. 154, Issue 7, July 2013, pp. 227-233

 

Bullet

 

Coordination Control of the Main Parameters in Hydroforming
 
1 Liping Wen, 2 Xiongfei Fan, 3* Yong Zhang

1 Department of Electrical and Mechanical Engineering, Inner Mongolia Agriculture University, Huhhot, 010018, China

2 Department of Electronic and Information Engineering, Inner Mongolia University, Huhhot, 010021, China 3 Department of Electrical and Mechanical Engineering, Inner Mongolia Agriculture University, Huhhot, 010018, China
Tel.: 1 +8615540977093, 2 +8613190602177, 3 +8613674748009
E-mail: 179404674@qq.com, 179384618@qq.com, zynmg@imau.edu.cn

 

Received: 17 May 2013   /Accepted: 19 July 2013   /Published: 31 July 2013

Digital Sensors and Sensor Sysstems

 

Abstract: Hydroforming is a cost-effective way of shaping ductile metals such as aluminum, brass, low alloy steels, stainless steel into lightweight, structurally stiff and strong pieces. The axial feed and internal pressure are very important parameters for tube hydroforming. Based on the original machine and sensors installed in this machine, the master-slave mode is used for controlling the axial feed of the right and left punches. By detecting displacement of the punch, one punch should trace another punch and realize the coordination motion control. On the other hand, adapting to add electro-hydraulic proportional valve on the low-pressure side and the internal pressure is set by users. The experiment results demonstrate that the control strategies proposed in this paper can meet the needs of manufacturing.

 

Keywords: Coordination control, Internal high pressure, Axial feed, Sensor, Hydroforming.

 

 

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