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Abstract: From the theory of up-curl chip breaking limits, the
predictive formula of chip’s cross curling radius and that of critical
feed-rate, all of which are about two-dimensional groove inserts, is
got. Based on the theory of chip dynamics and it’s breaking foundation
in the formation process of side-curl short-spiral chip, the critical
depth-of-cut is formulated. Through systemic experimental study, it is
proved that the results of experiments match that of the theoretical
predictive formula well. The base of groove designing and chip breaking
system of three-dimensional inserts is also made.
Key words: Chip Breaking limits Critical feed-rate Critical
depth-of-cut
CLC No: TH162
国家自然科学基金资助项目(50075021). Received 20011112, received in revised form
20020510
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