This paper deals with the influence of die surface orientation of roughness and die surface excitation on friction in metal forming processes. A way to evaluate friction coefficients from the flattening of long rectangular specimen was used for aluminium specimens with different die surface orientation of roughness. At the same time, this method was also used to examine the influence of die surface lateral vibration to friction with different parameters, such as frequency, amplitude and orientation of the specimen. The experimental results show that the roughness and die vibration have significant effects on friction in bulk forming process of small components.Keywords: Friction Test, Die Vibration, Surface Roughness and Upsetting
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