Abstract
Cutting conditions are very significant parameters for process efficiency and quality in cutting operations. However, the decision of cutting conditions is depend too much on experience and know-how of skillful engineers, because of the difficulty to select suitable cutting conditions. In this research, the expert system based on Case-Based Reasoning is developed to select cutting conditions by processing case data which contain experience and know-how of skillful engineers. This system aims to adapt to the case data for selecting the user oriented cutting conditions.