engleski

Experimental Determination of Friction Coefficient in Tube Hydroforming

Process of tube hydroforming enables manufacturing of various thin walled hollow components of complex shapes in very efficient way. In this process one of the most significant parameter is friction which takes place between the tube and the die. Impact of friction is unfavorable: it increases needed force and non-uniformity of tube deformation. For the modeling of the tube hydroforming as well as for qualitative and quantitative analysis of the process knowledge of coefficient of friction is indispensable. Current paper describes two experimental methods to determine coefficient of friction in elastic and plastic zone of the tube during hydroforming process.

Tube hydroforming; friction; experiment

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