抄録
Described is the soft ware system for the diagnosis of the cutting status in machining and its adaptive control. For the diagnosis of the cutting status, the concept of "information vectors" is introduced, which form a partially-ordered space for pattern recognition. The fuzzy set theory is also employed for the data handling and the control of the cutting status. Instructions from the human boss as his skill in machining are accepted on the CRT by writing them as fuzzy control rules with the fuzzy information of the concrete values required in describing them.
