Design, Development and Testing of a Three Component Lathe Tool Dynamometer Using Resistance Strain Gauges

摘要

In this paper, a lathe tool dynamometer that can evaluate fixed cutting forces by using level of resistance stress gauges has been designed and developed. These stress gauges insured to the cylindrical bar. The alignment of the cylindrical bar and stress gauge places has been identified to increase sensitivity and reduce cross-sensitivity. The designed dynamometer is capable of computing the forces acting on the workpiece in turning operation using any data acquisition system. The sensing system measures the deflection in stress gauges, and these signals are modified into other quantity and computed in the form of forces on the display system as well as on PC also. Tests finished at different machining factors revealed that the dynamometer could be utilized continually to evaluate cutting forces.