Title of article :
Prediction of cutting forces and machining error in ball end milling of curved surfaces -II experimental verification
Bernard Ikua، نويسنده , , Bernard W. and Tanaka، نويسنده , , Hisataka and Obata، نويسنده , , Fumio and Sakamoto، نويسنده , , Satoshi and Kishi، نويسنده , , Takeyasu and Ishii، نويسنده , , Tatsuo، نويسنده ,
Issue Information :
فصلنامه با شماره پیاپی سال 2002
This paper presents the results of a series of experiments performed to examine the validity of a theoretical model for evaluation of cutting forces and machining error in ball end milling of curved surfaces. The experiments are carried out at various cutting conditions, for both contouring and ramping of convex and concave surfaces. A high precision machining center is used in the cutting tests. In contouring, the machining error is measured with an electric micrometer, while in ramping it is measured on a 3-coordinate measuring machine. The results show that in contouring, the cutting force component that influences the machining error decreases with an increase in milling position angle, while in ramping, the two force components that influence the machining error are hardly affected by the milling position angle. Moreover, in contouring, high machining accuracy is achieved in “Up cross-feed, Up cut” and “Down cross-feed, Down cut” modes, while in ramping, high machining accuracy is achieved in “Left cross-feed, Downward cut” and “Right cross-feed, Upward cut” modes. The theoretical and experimental results show reasonably good agreement.
Ball end milling , Machining error , Instantaneous cutting forces , Convex surface , Concave surface , Contouring , Ramping
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