Journal ArticleDOI
Chatter stability of the constrained layer damping composite boring bar in cutting process
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TLDR
In this paper, the authors used anisotropic compositivities to enhance the chatter stability of boring bars using isotropic metallic materials, which exhibit extremely poor chatter suppression ability.Abstract:
Traditional boring bars are generally made up of isotropic metallic materials and exhibit extremely poor chatter suppression ability. For enhancing the chatter stability, using anisotropic composit...read more
Citations
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Dynamic analysis of a rotating composite shaft
TL;DR: In this paper, a finite element model has been developed to formulate the stiffness matrices using lamination theory, which takes into account the effects of axial, flexural and rotating on the eigen-nature of rotating composite shafts.
Journal ArticleDOI
Analysis of the Composite Boring Bar Dynamic Characteristics Considering Shear Deformation and Rotational Inertia
TL;DR: In this paper, a model of a composite boring bar considering shear deformation and rotational inertia is established based on the Adomian Modified Decomposition Method (AMDM).
Journal ArticleDOI
Stability Analysis of Cutting Process with Internally Damped Rotating Tapered Composite Cutter Bar
TL;DR: In this paper, a new dynamic model of the cutting system with a rotating composite cutter bar is presented, which is modelled as a rotating, cantilever, tapered, composite Euler-Bernoulli shaft, subjected to a regenerative cutting force.
Journal ArticleDOI
Development of a novel boring tool with anisotropic dynamic stiffness to avoid chatter vibration in cutting: Part 1: Design of anisotropic structure to attain infinite dynamic stiffness
TL;DR: This study formulate a theoretical relationship between the mechanical structural dynamics and chatter stability in boring operation and presents the basic concept of tool design with anisotropic structure, which could significantly improve the nominal dynamics for boring operations.
Journal ArticleDOI
Vibration control in boring process using a constrained viscoelastic layer damper
V. Vishal Krishna,S. Saravanamurugan,P. Sanjeev Kishore,Kj. Yedhu,Goutham K. Iswar,A. Shanmughasundaram +5 more
TL;DR: In this article, a viscoelastic layer sandwiched between main steel boring bar and aluminium tube is designed and developed in order to reduce the vibration produced during the machining operations.
References
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Journal ArticleDOI
Damping of Flexural Waves by a Constrained Viscoelastic Layer
TL;DR: In this article, a quantitative analysis of the damping effectiveness of a constrained layer of damping tape is presented, where the loss factor η is defined as the normalized imaginary part of the complex bending stiffness of the damped plate.
Journal ArticleDOI
Suppression of chatter vibration of boring tools using impact dampers
Satoshi Ema,Etsuo Marui +1 more
TL;DR: In this paper, the effects of the amount of free mass and clearance, the overhang length of boring tools and their cutting condition were investigated using impact dampers, and the results showed that the damping capability of the tools can be significantly improved using the impact damper.
Journal ArticleDOI
Dynamic analysis of a rotating composite shaft
TL;DR: In this paper, a homogenized finite element beam model was introduced to evaluate natural frequencies and instability thresholds of an internally damped rotating composite shaft and the results were compared to those obtained by using equivalent modulus beam theory, modified EMBT and layerwise beam theory.
Journal ArticleDOI
Loss Factors of Viscoelastically Damped Beam Structures
TL;DR: In this article, general expressions for the loss factors of axially uniform linear composite structures in terms of properties of the constituents are derived, applicable to practical composites incorporating free and constrained viscoelastic components.
Journal ArticleDOI
Design and manufacture of a carbon fiber epoxy rotating boring bar
TL;DR: In this article, a rotating boring bar was designed and manufactured with high stiffness pitch-based carbon fiber epoxy composite materials to meet the requirements of boring at high rotating speed because carbon fiber composites have a much higher specific stiffness and higher damping than conventional boring bar materials.