Journal ArticleDOI
On repeated adiabatic shear band formation during high-speed machining
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In this article, the repeated adiabatic shear band formation that takes place at sufficiently large cutting speeds in a number of materials during high-speed machining operations with the more well-known formation of a single shear bands that often takes place in dynamic torsion tests on these materials.About:
This article is published in International Journal of Plasticity.The article was published on 2002-04-01. It has received 110 citations till now. The article focuses on the topics: Adiabatic shear band & Machining.read more
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Quasi-static and dynamic loading responses and constitutive modeling of titanium alloys
TL;DR: In this paper, the results from a systematic study of the response of a Ti-6Al-4V alloy under quasi-static and dynamic loading, at different strain rates and temperatures, are presented.
Journal ArticleDOI
On the Portevin–Le Chatelier effect: theoretical modeling and numerical results
Egidio Rizzi,P. Hähner +1 more
TL;DR: In this article, a new model is presented for a physically consistent description of plastic material instabilities referred to as Portevin-Le Chatelier (PLC) effect, namely the oscillatory plastic flow that may be observed in metallic alloys subjected to load-or displacement-controlled plastic deformation in a certain range of strain, strain rate and temperature.
Journal ArticleDOI
Sub-surface and surface analysis of high speed machined Ti–6Al–4V alloy
TL;DR: In this paper, an extensive experimental study of the surface integrity and the sub-surface microstructure during high speed machining in orthogonal cutting condition is presented, including measurements of residual stresses and crystallographic texture in addition to electron microscopy observations.
Journal ArticleDOI
Modeling periodic adiabatic shear band evolution during high speed machining Ti-6Al-4V alloy
TL;DR: In this article, a new theoretical model was developed to predict the segment spacing, in which the momentum diffusion due to unloading within the shear band had been considered, and the predictions of this model were compared with the experimental and simulated results, which clearly reveal that the proposed model can satisfactorily capture the process of chip segmentation over a wide range of cutting speeds.
Journal ArticleDOI
Metallurgical study on chips obtained by high speed machining of a Ti–6 wt.%Al–4 wt.%V alloy
TL;DR: In this article, a metallurgical analysis on chips obtained by high speed machining of a Ti-6wt.%Al-4wt.V alloy has been performed to provide a better understanding of chip formation mechanisms.
References
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Metal cutting principles
TL;DR: In this paper, the authors describe typical cutting operations, including: Elastic Behaviour Plastic Behaviour Fracture Dynamometry Shear Strain in Cutting Shear Stress in Cutting Friction Wear and Tool Life Cutting Temperatures Cutting Fields Tool Materials Work Material Considerations Complex Tools Surface Integrity Chip Control Optimisation Modeling of Chip Formation Precision Engineering Unusual Applications of the Metal Cutting Process
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Mechanics of the Metal Cutting Process. I. Orthogonal Cutting and a Type 2 Chip
TL;DR: An analysis of the chip geometry and the force system found in the case of orthogonal cutting accompanied by a type 2 chip has yielded a collection of useful equations which make possible the study of actual machining operations in terms of basic mechanical quantities as mentioned in this paper.
The Mechanics of Machining: An Analytical Approach to Assessing Machinability
P.L.B. Oxley,H.T. Young +1 more
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An experimental study of the formation process of adiabatic shear bands in a structural steel
A. Marchand,J. Duffy +1 more
TL;DR: In this article, a series of experiments were described in which the local temperature and local strain are measured during the formation of an adiabatic shear band in a low alloy structural steel (HY-100).
Journal ArticleDOI
Modelling and simulation of high‐speed machining
T. D. Marusich,Michael Ortiz +1 more
TL;DR: In this paper, a Lagrangian finite element model of orthogonal high-speed machining is developed, which accounts for dynamic effects, heat conduction, mesh-on-mesh contact with friction, and full thermo-mechanical coupling.