An experimental investigation of vibration characteristics in the diamond wire sawing of granite

Abstract

Compared with circular and gang sawing, diamond wire sawing is a flexible machining
mode due to its special structure characteristic. The diamond wire with the elastic steel
core bends and vibrates in sawing process. In this paper, the vibration characteristics
are analyzed in the granite sawing with the diamond wire. The vibration signals in the
sawing process are simultaneously measured at six different measurement points
along the cutting zone. The influences of sawing parameters on the vibration
characteristics are explored. The results show that the vibration amplitude is a
U-shaped distribution in the sawing arc. The vibration amplitude decreases with the
increase of wire speeds, feed rates and the tension forces. The vibration fundamental
frequency is certainly proportional to the number of wheel speed times the number of
beads per meter, which has no related to the feed rates and tension forces in the saw
process. The wire vibration indicates the impact of bead acted on the workpiece.