Kiha Lee
Sponsored by CODEF
Abstract- This paper presents an investigation on micro-burr formation
in machining. Micro cutting is compared with conventional cutting in
terms of cutting process characteristics and cutting conditions. An
acceptable range of cutting conditions for micro cutting has been determined
by extrapolating the conditions for conventional cutting and experimental
verification. With cutting conditions determined, a series of experiments
was conducted to investigate burr formation and tool life. Herein, tool
life is defined as the number of holes created before a catastrophic
increase in burr height occurs. Based on experimental results, contour
charts for predicting burr formation as well as tool life are developed
to minimize burr formation and to improve tool life.
Keywords: micro-burr formation, tool life, contour chart.
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