Modeling of tool vibration and its effect on roundness and surface roughness of hole in helical milling of Inconel 718

K. Venkata, Rao and Ch, Ramesh (2022) Modeling of tool vibration and its effect on roundness and surface roughness of hole in helical milling of Inconel 718. Journal of Vibration and Control, 28 (1). pp. 159-168. ISSN 1741-2986

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Abstract

Relative vibration between the cutter and workpiece has an influence on the surface generation and dimensional accuracy.
In the present work, prediction models were developed for roundness and surface roughness of hole in terms of amplitude
and frequency of tool vibration. The proposed methodology carried out a theoretical investigation on the effect of tool
vibration components in X- and Y-directions on the mill cutter end point to estimate hole roundness and surface roughness.
Series of helical milling experiments were conducted at different levels of spindle rotational speed, cutter orbital speed, and
axial depth of cuts using 10- mm and 8- mm diameter mill cutters on Inconel 718. Predicted values of the roundness and
surface roughness of hole were compared with predicted values and verified accuracy of the proposed prediction models.
The experimental results indicate a good agreement with the predicted value. At spindle rotational speed of 2000 r/min and
cutter orbital speed of 50 r/min, the measured and predicted values of the roundness were found to be almost same as
the required roundness. The surface roughness was found to be very less at 50 r/min of cutter orbital speed.

Item Type: Article
Subjects: AC Rearch Cluster
Depositing User: Unnamed user with email techsupport@mosys.org
Date Deposited: 11 Dec 2023 11:26
Last Modified: 11 Dec 2023 11:26
URI: https://ir.vignan.ac.in/id/eprint/484

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