Research on the Tool Wear Mechanism of Cemented Carbide Ball End Mill Machining Titanium Alloy

Zhang, Yu Hua; Yang, Sheng‐Yung; Feng, Chuang

doi:10.4028/www.scientific.net/msf.836-837.318

Cited by 4 publications

(3 citation statements)

References 11 publications

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“…The calculation of effective milling radius R e for curved surface milling can be classified as the calculation of R e 1 for upslope and R e 2 for downslope in differential. 26…”

Section: Analysis Of Instantaneous Cutting Amount Variation For Curvementioning

confidence: 99%

Influence of cutting tool geometrical parameters on tool wear in high-speed milling of Inconel 718 curved surface

Zhang

et al. 2017

Proceedings of the Institution of Mechanical Engineers, Part B:

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High-speed machining provides an efficient approach for machining Inconel 718 with high quality and high efficiency. For high-speed milling of Inconel 718 curved surface, the geometrical characteristics are changing continuously leading to a sharp fluctuation of cutting force, which will aggravate the tool wear. As the wear mechanism of coated cutting tool is seriously affected by the cutting tool geometrical parameters, suitable geometrical parameters of cutting tool should be selected to avoid the cutting tool from being worn out very quickly. In this study, the influence of cutting tool geometrical parameters on tool wear in high-speed milling of Inconel 718 curved surface is investigated with coated cutting tool, and the cutting force in milling process is also analyzed. The results show that the cutting force variation can manifest the tool wear degree, and the failure type of coated cutting tool in plane milling and curved surface milling after the same cutting length is different. Furthermore, the cutting tool geometrical parameters seriously affect the tool wear and the tool life in high-speed milling of Inconel 718 curved surface. Concretely, the small rake angle has greater strength and has superiority, the relief angle increasing can enhance the tool life, and the tool life is decreased with the increasing of helix angle for the cutting tool, whose helix angle is larger than 30°. This study provides a theoretical basis for cutting tool wear mechanism and cutting tool geometrical parameter selection in high-speed milling of Inconel 718 curved surface, so as to guarantee the machining efficiency in high-speed milling of Inconel 718 curved surface.

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“…The calculation of effective milling radius R e for curved surface milling can be classified as the calculation of R e 1 for upslope and R e 2 for downslope in differential. 26…”

Section: Analysis Of Instantaneous Cutting Amount Variation For Curvementioning

confidence: 99%

Influence of cutting tool geometrical parameters on tool wear in high-speed milling of Inconel 718 curved surface

Zhang

et al. 2017

Proceedings of the Institution of Mechanical Engineers, Part B:

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show abstract

“…11 illustrates the experimental environment. To optimize the surface quality of the workpiece, the dip angle of milling was set to 15° [24]. The milling parameters and experimental results are shown in Table II It can be seen from Table IV that the micro-textures of nonuniform distribution produced better milling force than those of uniform distribution, due to the changes in the distribution density.…”

Section: Experimental Verificationmentioning

confidence: 99%

Optimization of Micro-Texture Distribution through Finite-Element Simulation

Wan¹,

Zheng²,

Yang³

et al. 2019

Int. j. simul. model.

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The existing studies on micro-texturing of cutting tools only tackle the micro-textures of uniform distribution. The theoretical and experimental bases are severely lacking for the effects of different micro-texture distributions on the anti-wear and anti-friction properties in titanium alloy cutting. To solve the problem, this paper attempts to explore the wear resistance and friction performance of micro-round-pit (MRP) textures in different distributions. Specifically, the DEFORM-3D finiteelement method (FEM) software was adopted to simulate and analyse the effects of these distributions on the ball-end milling of titanium alloy. The simulation shows that the milling force was minimized by the distribution ABC (150-175-200). This result was then confirmed by a milling experiment. In conclusion, the tool wear and cutting friction can be effectively reduced by the optimal micro-texture distribution.

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“…We wanted to engage in using a cutting technique under robust conditions so that we could realistically assess the impact of the micro-textured surface on the tool. Note that the workpiece was given an inclined angle was 15°, because some research suggests that this machining angle provides the best cutting performance [16]. The overall machining method was progressive milling.…”

Section: Experimental Studymentioning

confidence: 99%

Temperature Field of Tool Engaged Cutting Zone for Milling of Titanium Alloy with Ball-End Milling

Yang

Zheng

et al. 2018

Micromachines

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When milling titanium alloy, the cutting temperature has a strong impact on the degree of tool wear and, in turn, tool life and the surface quality of the workpiece. The distribution of the temperature field on a tool’s rake face can be improved through the use of micro-textures, which help to reduce friction and, ultimately, wear on the tool. In this paper we present a new way to measure cutting temperature and examine heat distribution when milling titanium alloy with micro-textured ball-end milling tools. We first establish the heat flux density function for the contact area between the workpiece and the tool and then for the rest of the tool. Thermal stress simulation shows that adhesive wear tends to happen in the contact area and on the flank face, rather than at the tip of the tool, with the temperature distribution gradient for the rest of the tool being more uniform. The maximum value for thermal stress on the cutting edge was 2.0782 × 106 Pa. This decrease as you move away from the cutting edge along the contact area between the tool and the workpiece. Maximum deformation of the tool is also mainly concentrated at the principal contact point, with a value of 1.9445 × 10−9 m. This, too, decreases as you move away from the cutting edge and into the rest of the contact area. This research provides the basis for the optimization of tool structure and further investigation of the thermo-mechanical coupling behavior of micro-textured ball-end milling cutters when milling titanium alloy.

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Research on the Tool Wear Mechanism of Cemented Carbide Ball End Mill Machining Titanium Alloy

Cited by 4 publications

References 11 publications

Influence of cutting tool geometrical parameters on tool wear in high-speed milling of Inconel 718 curved surface

Influence of cutting tool geometrical parameters on tool wear in high-speed milling of Inconel 718 curved surface

Optimization of Micro-Texture Distribution through Finite-Element Simulation

Temperature Field of Tool Engaged Cutting Zone for Milling of Titanium Alloy with Ball-End Milling

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