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Experimental Investigation of Boring Tool Vibration for Improving Surface Finish by using Passive Damper

Author : Dayanand Wadhwankar, Kiran More, Vidyasagar Bajaj

Pages : 159-162
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Boring is a commonly used operation to enlarge the existing holes of machine structures. When boring tool is slender and long, it is subjected to excessive static deflections or a self excited chatter vibration which reduces the accuracy and surface finish of the hole. It also causes accelerated wear and chipping of the tool. Internal turning frequently requires a long and slender boring tool in order to machine inside a cavity, and the vibrations generally become highly correlated with one of the fundamental bending modes of the boring tool. Use of passive Damper of different orientation reduces vibration level in Boring tool & tool holder &work piece to be enlarging hole improving surface finish. Furthermore, the interface between the boring tool and the clamping house has a significant influence on the dynamic properties of the clamped boring tool. This report focuses on the behavior of a boring tool that arises under different overhang lengths which are commonly used in the manufacturing industry.

Keywords: Boring Tool, Natural Frequency, Passive Damper, Surface Finish, Vibration

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