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Abstract: A
new type of tool name as multi-tooth tool that can produce many pieces
of long metal fibres simultaneously is developed. The whole cutting
layer will be split into pieces of metal fibres as several tiny teeth of
the multi-tooth tool are involved in cutting at the same time. This is
called the chip-splitting action of the multi-tooth tool. Slim long
metal fibre that has an equivalent diameter of below 100 mm, or even
below 50 mm, can be manufactured high efficiently by the chip-splitting
action of the multi-tooth tool. The cutting model of the multi-tooth
tool is built, and its chip-splitting mechanism is also studied.
Furthermore, the formula of number of teeth involved in cutting at the
same time and theoretical equivalent diameter of fibres produced
simultaneously are inferred.
Key
words: Multi-tooth
tool Chip-splitting action Slim long metal fibre
CLC No: TH16
国家自然科学基金(50375055)、重点基金(50436010)和广东省自然科学基金(011513)资助项目.
Received 20040424, received in revised form 20041115 |