Abstract
This paper relates to the fiber formation region in Chatter Machining method in which the effects of various manufacturing conditions are experimentally investigated and their causes are discussed on the basis of the mechanism of fiber formation. It is confirmed that the conditions such as adequate tool rigidity, additional weight on the lower end of the elastic tool, increase of relief angle, keen cutting edge as well as high cutting speed should be satisfied to obtain wider fiber formation region, considering the influence of manufacturing conditions on the allowable feed rate, dynamic behavior of cutting edge and sizes of chatter marks. Finally, it is concluded that deep penetration of cutting ege into the material surface and appropriate phase lag between the inner and outer modulation of cutting edge are essential to achieve wider fiber formation region. These results are also explained by computer simulation.
