Tool nose radius effects in turning process

Abdellaoui, Lefi; Khlifi, Hassen; Saï, Wassila Bouzid; Hamdi, Hédi

doi:10.1080/10910344.2020.1815038

Cited by 17 publications

(4 citation statements)

References 28 publications

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“…Budak and Ozlu [19] proposed a thermo-mechanical model that considered both the sticking and sliding contact on rake face, and applied this model to obtained the elements and the local forces acting on each element by dividing the nose of the turning into small elements. Abdellaoui et al [20]. also analysed the effects of tool nose radius and established a thermo-mechanical model, which allows predicting force cutting components and thermo-mechanical parameters.…”

Section: Introductionmentioning

confidence: 99%

Analytical prediction of cutting forces in cylindrical turning of 304 stainless steel using unequal division shear zone theory

Zhang

2022

Int J Adv Manuf Technol

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In order to establish a more accurate prediction model of turning forces, this paper proposed an analytical model for cylindrical turning with the consideration of the effect of the main cutting edge angle and the nose radius. Meanwhile, the unequal division shear zone theory in orthogonal free cutting is extended and applied to the oblique non-free cutting in the interaction between the chip units. To take into account the real tool nose geometry, the engaged part in the rounded nose is discretized into a set of cutting edge units. The geometrical parameters associated with the cutting edge units are analysed by using the coordinate transformation approach. Then, the improved oblique cutting model is developed for each cutting edge unit to acquire the component forces along the tool rake face. Finally, the resultant cutting forces in the turning process are calculated by the numerical integration method. To verify the effectiveness of the proposed model, the turning force experiment of 304 stainless steel was carried out by changing the cutting conditions, the main edge cutting angle and the nose radius. Through the comparative analysis between the measured results and the calculation values of the proposed model, it was found that the analytical prediction of cutting force is in good agreement with the experiment.

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Section: Introductionmentioning

confidence: 99%

Analytical prediction of cutting forces in cylindrical turning of 304 stainless steel using unequal division shear zone theory

Zhang

2022

Int J Adv Manuf Technol

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“…Below a certain minimum undeformed chip thickness, the cutting edge of the tool is unable to remove material from the workpiece, so a so-called "ploughing effect" (partial material removal) occurs. The value of the minimum chip thickness (h min ) depends on several factors but is basically calculated from the edge radius (r β ) of the tool [84]. The tool radius is not reported by the manufacturers and is not easy to measure, so estimates are usually given.…”

Section: Resultsmentioning

confidence: 99%

Theoretical Roughness Modeling of Hard Turned Surfaces Considering Tool Wear

Felhő

Varga

2022

Machines

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Surface roughness is an important factor in metal cutting, and usually different surface roughness characteristics are used to control the quality of the machined surfaces. However, as the cutting tool wears out during the cutting process, the roughness values change. In most cases, theoretical roughness values are calculated without taking the wear characteristics of the tool into account. For this reason, the calculated and measured roughness values may differ from each other, and the tendency of their change may also be different. This paper presents a method for the determination of the theoretical roughness of hard turned surfaces considering the wear of the cutting tool. The purpose of the analyses performed was to show the effect of wear trace on the tool and the roughness of the machined surface and to give a possible method to take the wear into account when calculating the theoretical roughness values. During the investigations, the shape of the actual (worn) edge section of the cutting tool was recorded by an optical microscope, and the theoretical surface roughness values were calculated with that profile by a CAD modeling method developed earlier. Cutting experiments were conducted on a lathe machine with two similar cutting tools, one of them has significant tool wear, while the other was a completely new one. The calculated theoretical roughness values were compared with real measured roughness values, and the error of the estimates was between 8.7 and 68.3%, larger errors were found at lower feeds.

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“…A multi-objective optimization is developed as an expressed weighted sum model, with two objective functions and 'w' representing the weighting function [24]. A study of the weighted sum ratio scaling problem is conducted for interference power control in a perceptual multiple access channel, where each SU communicates with a base station having a single transmit antenna and multiple receive antennas [25]. It will be shown later that a weighted sum is not unusual.…”

Section: Wight Sum Methodsmentioning

confidence: 99%

Assessment of Turning process using the WSM Method

Arivudainambi¹,

Muthusamy²,

Suresh³

2022

JEMM

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Metal turning is a form of machining. It is used to create circular areas by cutting objects. The turning process requires a machine or lathe, a working tool, a fixture, and a cutting tool. A preformed piece of metal is secured to a device. A common process for turning a part includes rotating it while moving a single-point cutting tool parallel to the axis of rotation. This cutting tool works on both the outer and inner surfaces of the part. Factors such as cutting speed, cutting tool, depth of cut, and work-piece are considered in the turning process. In the assessment, the options are Cu, Si, Mn, Mg, and Zn. The results show that Zn ranks first, while Si has the lowest rank. The dataset's value for the Range of Turning process in the WSM (Weighted Sum Model) Method indicates that zinc (Zn) achieves the top ranking.

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Tool nose radius effects in turning process

Cited by 17 publications

References 28 publications

Analytical prediction of cutting forces in cylindrical turning of 304 stainless steel using unequal division shear zone theory

Analytical prediction of cutting forces in cylindrical turning of 304 stainless steel using unequal division shear zone theory

Theoretical Roughness Modeling of Hard Turned Surfaces Considering Tool Wear

Assessment of Turning process using the WSM Method

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