Effect of low frequency vibration applied to feed direction on turning process

Low Frequency Vibration-cutting (LFV) is a new machining technology developed to solve problems with the turning process. Vibration applied to the servo shaft in the feed direction can be synchronized with the rotation spindle. This technology has the significant feature of discharging the chips intermittently, because it has “air-cutting” times during cutting. It also can handle a variety of machining types, and is therefore suitable for cutting difficult-to-cut materials. However, the mechanisms of LFV have not been fully investigated. Therefore, to clarify these mechanisms, cutting tests were conducted on SUS304 to evaluate cutting force, and to compare the cutting properties of LFV with that of conventional cutting (CC). The LFV showed improved effects in terms of a decrease in cutting force. (“LFV” is a registered trademark of Citizen Watch Co., LTD., Japan)