Abstract:
The present invention discloses high frequency vibration assisted turning apparatus and method for Ti alloy work pieces. The invention is also applicable to alloys that are hard to machine in general. It is a novel manufacturing technology, where high frequency vibrations are imposed on the conventional movement of the cutting tool. As an example frequency of 20 kHz and amplitude of 20 μm are provided to the cutting tool in the direction of feed given to tool holder. The method results in reduction of shear friction at the contact between the tool and the work piece, which in turn results in the reduction in shear band formation in this high frequency assisted turned chips. There are benefits which results in terms of improved chip mechanism and tool life. It is observed that the High Frequency Turning produces a better surface finish that the conventional methods.
Abstract:
The present invention discloses high frequency vibration assisted turning apparatus and method for Ti alloy work pieces. The invention is also applicable to alloys that are hard to machine in general. It is a novel manufacturing technology, where high frequency vibrations are imposed on the conventional movement of the cutting tool. As an example frequency of 20 kHz and amplitude of 20 μm are provided to the cutting tool in the direction of feed given to tool holder. The method results in reduction of shear friction at the contact between the tool and the work piece, which in turn results in the reduction in shear band formation in this high frequency assisted turned chips. There are benefits which results in terms of improved chip mechanism and tool life. It is observed that the High Frequency Turning produces a better surface finish that the conventional methods.