Journal ArticleDOI
Temperatures in Orthogonal Metal Cutting
G. Boothroyd
- Vol. 177, Iss: 1, pp 789-810
TLDR
In this paper, the authors used a photographic technique for the determination of the complete temperature distribution in the orthogonal metal cutting process; they are found to disagree with previous theoretical predictions.Abstract:
The results of a photographic technique for the determination of the complete temperature distribution in the orthogonal metal cutting process are presented; they are found to disagree with previous theoretical predictions. The temperatures along the tool rake face are of particular interest because they are thought to affect the wear of the cutting tool and friction between the chip and tool; it is found that these temperatures have been considerably over-estimated by previous work. By introducing the width of the secondary deformation zone, i.e. the extent of sub-surface deformation due to friction at the tool-chip interface, as a new variable, it is found that more consistent predictions of rake face temperatures can be made. From this work information has been obtained on the shape of the zones of plastic deformation in metal cutting and on the distribution of heat generation within these zones.read more
Citations
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Journal ArticleDOI
Mechanisms and predictive force models for machining with rake face textured cutting tools under orthogonal cutting conditions
Yuhan Chen,Jun Wang,Qinglong An +2 more
TL;DR: In this article, the cutting performance and mechanisms of rake face textured carbide cutting tools in orthogonal machining of a carbon steel are investigated. And the machining tests show that cutting tools with the rake face grooves can reduce the thrust force by up to 14.68% in comparison with the untextured cutting tools, as a result of the decreased frictional force between the tool and chip.
Journal ArticleDOI
Methodology to establish a hybrid model for prediction of cutting forces and chip thickness in orthogonal cutting condition close to broaching
G. Ortiz-de-Zarate,Andres Sela,M. Saez-de-Buruaga,M. Cuesta,Aitor Madariaga,A. Garay,Pedro José Arrazola +6 more
TL;DR: In this article, an innovative methodology to establish a hybrid model based on the combination of empirical, numerical, and analytical approaches is presented, which improves the cutting force, feed force, and chip thickness predictions when compared to the results obtained with the empirical, numeric, or analytical ones separately.
Journal Article
Development of a thermal model in the metal cutting process for prediction of temperature distributions at the tool-chip-workpiece interface
TL;DR: In this paper, a thermal model for orthogonal metal cutting based on the thermal model of Komanduri and Hou is proposed. But the model is not suitable for the case of the tool-chip-workpiece interface.
Journal ArticleDOI
Calculation of temperature distributions in machining using a hybrid finite-element-boundary-element method
A.A.O. Tay,K.H. Lee +1 more
TL;DR: In this paper, a FEM/BEM hybrid formulation for the problem of calculating machining temperature distributions is presented. But the FEM method is not suitable for the machining of carbide tools due to its smallness of scale and the high cutting speeds and temperatures.
Journal ArticleDOI
The effect of thermal property degradation on wear of WC-CO inserts in dry cutting
TL;DR: In this paper, the authors investigated the relationship between wear and the conditions of heat removal at the tip of a tool and found that the immediate layer under the surface of the tool tip is important to enhance the ability of tool material to dissipate the thermal loads.
References
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Journal ArticleDOI
Mechanics of Orthogonal Machining
W. B. Palmer,P. L. B. Oxley +1 more
TL;DR: In this paper, an experimental technique was developed for observing the cutting process during slow orthogonal cutting of mild steel, and the theory was extended by including the effect of work-hardening and it appeared that consistency had been regained.
Journal ArticleDOI
Photographic technique for the determination of metal cutting temperatures
TL;DR: In this paper, an experimental technique has been developed for the measurement of the temperature distribution in the deformation zone and in the chip and tool during orthogonal cutting, where the cutting edge of the tool is perpendicular to the direction of relative motion of the workpiece and tool.
Journal ArticleDOI
A theoretical investigation of the temperature distribution in the metal cutting process
TL;DR: In this article, relaxation and analytical methods of solution have been developed and applied to the work material, the chip and the tool considered as three separate problems and compared with other analytical solutions and with indirect experimental evidence of the temperatures attained.
Journal ArticleDOI
Shear angle solutions in orthogonal machining
TL;DR: In this article, it is shown that the effective shear angle will be smaller at slow speeds, for given values of tool rake angle and tool-chip interface friction, than at high speed sowing to the increase in width of the deforming zone with decrease in cutting speed.
Journal ArticleDOI
The Influence of Rate of Strain-Hardening in Machining:
TL;DR: In order to determine the influence of the rate of strain-hardening (that is, rate of increase of flow stress with straining) on the machining process, cutting tests were carried out on a material as mentioned in this paper.