Chip thickness analysis for different tool motions

Sai, Lotfi; Bouzid, Wassila; Zghal, Ali

doi:10.1016/j.jmatprotec.2007.11.094

Cited by 36 publications

(12 citation statements)

References 12 publications

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“…1 and 2, the velocity components depend on the insert orientation angles and on the angular position θ of the tool. Both rotation movement and feed speed generate a variation of the instantaneous feed h m [10][11][12]. This variation affects the primary shear zone length l (4) and thus the strain and strain rate cartography.…”

Section: Kinematic Studymentioning

confidence: 99%

3D modeling of strain fields and strain rate in the cutting area: application to milling

Yousfi

Darnis

Cahuc

et al. 2015

Int J Adv Manuf Technol

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Given the complexity of the physical phenomena present in machining, orthogonal cutting is the configuration that has been most studied and modeled analytically. However, this configuration is no longer applicable if we consider the true orientations of the cutting edge found in the modeling space, for , during milling. Along the cutting edge, geometric and kinematic parameters vary considerably and the speed vector at each point is very sensitive to the true position of the point under consideration on the cutting edge. For each shear zone, the study proposed here looks at the effect of velocity gradients on the strain and strain rate fields. These velocity gradients generate extra chip displacement, in three dimensions, and consequently give rise to new force components and cutting moments. This study describes the overall calculation process, starting with a detailed description of each characteristic zone in the cutting area. By determining the speed vector and the displacement vector, strains and strain rates can be mapped for the entire volume of the cutting area when milling.

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Section: Kinematic Studymentioning

confidence: 99%

3D modeling of strain fields and strain rate in the cutting area: application to milling

Yousfi

Darnis

Cahuc

et al. 2015

Int J Adv Manuf Technol

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“…For arc as well as profile end milling, the chip thickness model is always established on circular tooth trajectory for simplification. Lofti [8] analyzed the true tooth trajectory and undeformed chip thickness in case of circular interpolation. P.V.M.…”

Section: Nomenclaturementioning

confidence: 99%

Chip Thickness Analysis Based on Tooth Trajectory for Different End Milling Processes

Xue¹,

Hua²,

Zhang³

et al. 2010

2010 International Conference on Manufacturing Automation

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Instantaneous chip thickness during three typical end milling processes is analyzed in this paper. The tooth trajectory of a milling cutter is a combination of two motions, one is the rotation of the cutter spindle and the other is the feed motion of the cutter relative to work-piece. For simplification traditional chip thickness models always simplify the tooth trajectory as a circle to get approximate results. In this paper, modeling of true tooth trajectory in linear, arc and profile end milling processes is studied. And mathematical expresses for entry and exit angles of tooth, feed per tooth along cutter contact path are derived for undeformed chip thickness modeling. The instantaneous chip thickness of each process based on circular tooth trajectory model is analyzed as well for comparison. Cutting forces under different chip thickness models are also predicted to study the effect of tooth trajectory on milling process simulation.

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“…Saï et al [21] proposed the modelling of nondeformed chip thickness with respect to end mill trajectory by circular (not linear, as previously) interpolation. During the circular trajectory of tool motion, chip thickness increases with a decrease in the radius of motion trajectory.…”

Section: Introductionmentioning

confidence: 99%

Chip Fragmentation in the Milling of AZ91HP Magnesium Alloy

2017

SV-JME

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Chip thickness analysis for different tool motions

Cited by 36 publications

References 12 publications

3D modeling of strain fields and strain rate in the cutting area: application to milling

3D modeling of strain fields and strain rate in the cutting area: application to milling

Chip Thickness Analysis Based on Tooth Trajectory for Different End Milling Processes

Chip Fragmentation in the Milling of AZ91HP Magnesium Alloy

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