2002 年 10 巻 4 号 p. 53-59
Our company has been developing a semi-dry machining process, i.e., using minute amount of lubricating oil, to reduce machining cost also to improve the problems such as energy consumption, waste treatment or environmental deterioration. Currently, we are working to optimize the drilling condition for aluminum material using Taguchi methods. In our first paper the machining conditions without drill breakage were reported. This paper explains an experiment focused on the input/output energy relationship. The results showed that new semi-dry machining condition gave an outstanding improvement on quality, efficiency and energy consumption compared with current machining conditions.