Abstract
This paper describes the cutting performance of dry-cutting and the cold-air blast cutting with a prototype Machining Center. The results are follows : (1) The prototype Machining Center of cold-air center though blast type has developed. (2) The tool life is 2.5 times by comparing the dry cutting process and the cold-air blast cutting process, in the case of S50C workpiece. (3) It is hard to cutting process NAK80 in the dry cutting process, but it can cutting NAK80 workpiece without a problem in the cold-air blast cutting process.
