Orthogonal cutting of TA6V alloys with chamfered tools: Analysis of tool–chip contact lengths

Barelli, Floran; Wagner, Vincent; Laheurte, Raynald; Dessein, Gilles; Darnis, Philippe; Cahuc, Olivier; Mousseigne, Michel

doi:10.1177/0954405416629589

Cited by 12 publications

(2 citation statements)

References 18 publications

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“…Moreover, control this point can be used to monitor the tool wear as shown by Wagner et al 4 This F r / F c cutting force orientation is explained by the cutting edge geometry which has a significant impact on the titanium machining, especially when it is higher than the feed. 4,13 Indeed for a feed lower than the cutting edge preparation, the material is trapped under the cutting edge which generates a dead zone where the strain rate become almost zero. The radius then becomes the main cutting face.…”

Section: Cutting Forcesmentioning

confidence: 99%

Comparison of the chip formations during turning of Ti64 β and Ti64 α+β

Wagner

Barelli²,

Dessein

et al. 2017

Proceedings of the Institution of Mechanical Engineers, Part B:

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For a number of years, the rise in the number of titanium alloy grades and therefore of microstructures has hampered the productivity of titanium parts. In order to understand the phenomena involved, this study presents a comparison of the chip formations between two microstructures obtained from the same alloy. The first part presents the two alloys, their microstructures and their methods of production. The chip formation of each material is then presented and shows two completely different processes. The first process is classical, for which shear mechanisms appear to be cyclical. Conversely, the second process depends on the orientation of the microstructure when the shear occurs. For a better understanding of the phenomena, the effect of cutting speed and feed is also discussed. Finally, in the last section, chip formations for the two microstructures are summarized and perspectives are presented.

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Section: Cutting Forcesmentioning

confidence: 99%

Comparison of the chip formations during turning of Ti64 β and Ti64 α+β

Wagner

Barelli²,

Dessein

et al. 2017

Proceedings of the Institution of Mechanical Engineers, Part B:

Self Cite

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“…The tool relative to the workpiece movement can be obtained from the following Equation (1): Based on the above analysis, the TCI contains three-phase friction (TPF) and is strictly defined as two-body sliding friction, three-body rolling friction, and adhesive friction of matrix. Therefore, the mechanical model is established under the following assumptions [20][21][22]:…”

Section: Evc Cutting Force Modelmentioning

confidence: 99%

Cutting Force Prediction Model for Elliptical Vibration Cutting SiCp/Al Based on Three-Phase Friction Theory

Liu

Zhang

Wang³

2021

Applied Sciences

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The friction behavior in the tool-chip interface is an essential issue in aluminum matrix composite material (AMCM) turning operations. Compared with conventional cutting, the elliptical vibration (EVC) cutting AMCM has attractive advantages, such as low friction, small cutting forces, etc. However, the friction mechanism of the EVC cutting AMCM is still inadequate, especially the model for cutting forces analyzing and predicting, which hinders the application of EVC in the processing of AMCM. In this paper, a cutting force prediction model for EVC cutting SiCp/Al is established, which is based on the three-phase friction (TPF) theory. The friction components are evaluated and predicted at the tool-chip interface (TCI), tool-particle interface (TPI) and tool-matrix (TMI), respectively. In addition, the tool-chip contact length and SiC particle volume fraction were defined strictly and the coefficient of friction was predicted. Based on the Johnson-Cook constitutive model, the experiment was conducted on SiCp/Al. The cutting speed and tool-chip contact length were used as input parameters of the friction model, and the dynamic changes of cutting force and stress distribution were analyzed. The results shown that when cutting speed reaches 574 m/min, the tool-chip contact length decreases to 0.378 mm. When the cutting speed exceeds 658 m/min, the cutting force decreases to a minimum of 214.9 N and remains stable. In addition, compared with conventional cutting, the proposed prediction model can effectively reduce the cutting force.

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Orthogonal cutting of Wire and Arc Additive Manufactured parts

Fonseca

Vidal

Ferreira

et al. 2022

Int J Adv Manuf Technol

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Wire and Arc Additive Manufacturing (WAAM) is increasingly being used to produce complex and nontraditional geometries that other technologies are not able to create. Finishing operations, as machining, are often required to accomplish the components functionality. However, recent studies suggest that several machining issues arise due to the lack of geometrical tolerances and complex shapes of the manufactured parts, like chattering effects, appropriate work holding selection and component alignment. This work aimed to evaluate if the established scienti c knowledge for machining homogeneous and isotropic materials remains valid for machining WAAM parts.Two different variants of WAAM were analysed, namely, conventional MIG/MAG and hot forging (HF-WAAM).The cutting operations were carried out varying the undeformed chip thickness (UCT) and the cutting speed, using a tool rake angle of 25°. A systematic comparison was conducted between the existing theoretical principles and the obtained practical results of the orthogonal cutting process, where material properties (hardness, grain size, yield strength) and important machining outcomes (cutting forces, speci c cutting energy, friction, shear stress, chip formation and surface roughness) are addressed. Additionally, high-speed camera records were used to evaluate the generated shear angle and chip formation process during the experimental tests.The machinability indicators shown that, through the appropriate cutting parameters, machining forces and energy consumption can be reduced up to 12%, when machining the mechanical improved HF-WAAM material, without compromising the surface quality requirements.

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Orthogonal cutting of TA6V alloys with chamfered tools: Analysis of tool–chip contact lengths

Cited by 12 publications

References 18 publications

Comparison of the chip formations during turning of Ti64 β and Ti64 α+β

Comparison of the chip formations during turning of Ti64 β and Ti64 α+β

Cutting Force Prediction Model for Elliptical Vibration Cutting SiCp/Al Based on Three-Phase Friction Theory

Orthogonal cutting of Wire and Arc Additive Manufactured parts

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