Upper bound analysis of oblique cutting with nose radius tools

Adibi-Sedeh, A. H.; Madhavan, Viswanathan; Bahr, Behnam

doi:10.1016/s0890-6955(02)00007-x

Cited by 21 publications

(6 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Seethaler and Yellowley [14] have proposed a so called "Upper-bound model" based on the minimisation of the cutting power (sum of shear and friction energies) to predict chip flow angle. This approach was extended later by AdibiSedeh et al [15] and recently improved by Zou et al [16]. Fang [17] has developed a similar approach to determine the chip flow angle and also the chip flow speed.…”

Section: Experimental Workmentioning

confidence: 99%

Experimental and Theoretical Analysis of the Chip Flow Direction in Turning using Flatted and Grooved Inserts – Impact of the Tool Rake Face Geometry, the Work Material and Cutting Conditions

S¹,

Bensari²,

Tirenifi³

2017

J Appl Mech Eng

View full text Add to dashboard Cite

This paper deals mainly with an experimental and theoretical analysis of the Chip Flow Direction (CFD) in turning process using flatted and grooved inserts. Turning tests have been performed to determine the CFD from measured cutting force components. Different cutting conditions have been considered by varying the cutting speed, the feed rate and the depth of cut. From a theoretical point of view, two models have been applied. The first one is an analytical model based on the discretization of the undeformed chip area. The second one is a purely geometrical model which assumes the CFD normal to the major axis of the projected cutting area on the rake face. The effect of cutting conditions on the CFD was clearly highlighted experimentally and by adopted models. It has been shown that the CFD depends strongly on the depth of cut in the browsed range of cutting parameters, while cutting speed has a little effect. One of main discussed results concerns the impact of the tool rake face geometry (flatted and grooved) on the CFD. Finally, it has been shown that the CFD is independent on machined materials.

show abstract

Section: Experimental Workmentioning

confidence: 99%

Experimental and Theoretical Analysis of the Chip Flow Direction in Turning using Flatted and Grooved Inserts – Impact of the Tool Rake Face Geometry, the Work Material and Cutting Conditions

S¹,

Bensari²,

Tirenifi³

2017

J Appl Mech Eng

View full text Add to dashboard Cite

show abstract

“…Based on the studies [27] of Colwell, Stabler, Armarego, etc., Hu et al [28] presented a geometric model called equivalent cutting edge model. Considering the influence of major cutting edge and minor cutting edge, the chip flow direction is along the direction shown in the Fig.…”

Section: Equivalent Cutting Edge Modelmentioning

confidence: 99%

Green Machining of Ti-6Al-4V Under Minimum Quantity Lubrication (MQL) Condition

Liu

2014

Materials Forming, Machining and Tribology

View full text Add to dashboard Cite

Although many studies have been done on the MQL applications in different machining process, there are few of studies on the influences about selections of MQL parameters. Different parameters of MQL system have different influences on the milling force and milling temperature, which are closely connected to the lubrication and the coolant. The cutting force and temperature play significant roles in the improving/reducing cutting quality of workpiece and extend/shorten tool life, by changing different parameters of MQL system. This chapter presents an experiment of end-milling titanium alloy with MQL system, discussing the influences of different parameters. One object of the experiment is to investigate the influences of Ti-6Al-4V. The results of experiment will help to understand the influences of selecting different parameters on the end-milling process. Another object is to apply the selected optimal parameters in the former object to milling Ti-6Al-4V.

show abstract

“…Fang [27] improved a model for oblique cutting to control chip flow direction and chip flow speed. Adibi-Sedeh et al [28] performed an analysis to study the effects of using flat-faced nose radius tools for calculating the chip flow angle. Validation of the model was presented in the research.…”

Section: Introductionmentioning

confidence: 99%

Theoretical and experimental research of edge inclination angle effect on minimum uncut chip thickness in oblique cutting of C45 steel

Mikołajczyk

Latos

Szczepaniak

et al. 2022

Int J Adv Manuf Technol

View full text Add to dashboard Cite

The minimum uncut chip thickness (MUCT) is an important phenomenon observed both in orthogonal and oblique cutting. Rounding the cutting edge influences the initiation of the cutting process and chip formation. In a previous study, the authors presented a theoretical analysis and experimental validation on the effect of edge inclination angle λs in the range of 0° to 60° on hmin in radial-free turning of C45 steel. The current work investigated the MUCT hmin in oblique cutting process of C45 steel, for extremely high value of edge inclination angle λs. In this research, a special technique based on milling tool machine using a special tool and sample is presented. Enabled model tests in the unprecedented range of angles λs not used in research to date. The samples were machined using a cutting speed vc = 0.063 m/min. Vertical feed of edge fv was determined by association on the applied sample slope (τ = 0.60–0.85 mm/m) and cutting speed vc. as fv = 37.8—53.5 μm/min. MUCT hmin parameter was measured using compensation for the effects of deformation, based on profilogram analysis. The machining experiments were carried out using a tool with rn = 185 μm. It was found that in the range of angles of 50° ≤ λs ≤ 85°, the MUCT decreases from hmin = 12 μm for λs = 50° to hmin = 4 μm for λs = 85°. Increasing λs by 35° resulted in up to threefold reduction in MUCT. The analysis of the experimental results of hmin for the range of studied λs angle confirmed authors previously reported theory for extreme values of λs. In optimization procedure based on LSM, chip flow angle coefficient was determined as k = 0.75 and critical value of rake angle γcf = -64.8°. This feature provides prediction of results with great accuracy to experimental value. The findings from this study opens the possibility of developing new tools for finishing operations in the field of oblique cutting with high values of λs angle. In addition, the results introduce new area for research on improving the surface quality based on lowering the effect of MUCT on surface roughness and explaining some aspects related to surface wear in the friction process.

show abstract

Upper bound analysis of oblique cutting with nose radius tools

Cited by 21 publications

References 25 publications

Experimental and Theoretical Analysis of the Chip Flow Direction in Turning using Flatted and Grooved Inserts – Impact of the Tool Rake Face Geometry, the Work Material and Cutting Conditions

Experimental and Theoretical Analysis of the Chip Flow Direction in Turning using Flatted and Grooved Inserts – Impact of the Tool Rake Face Geometry, the Work Material and Cutting Conditions

Green Machining of Ti-6Al-4V Under Minimum Quantity Lubrication (MQL) Condition

Theoretical and experimental research of edge inclination angle effect on minimum uncut chip thickness in oblique cutting of C45 steel

Contact Info

Product

Resources

About