Hybrid cryogenic MQL for improving tool life in machining of Ti-6Al-4V titanium alloy

Shokrani, Alborz; Al-Samarrai, Ihsan; Newman, Stephen T.

doi:10.1016/j.jmapro.2019.05.006

Cited by 172 publications

(55 citation statements)

References 56 publications

(85 reference statements)

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“…However, while under MQL conditions the tool suffered considerably less wear when compared to the other cooling methods, making this method a viable option for machining titanium alloys, when compared to the conventional flood coolant and dry methods. Still regarding the machining of Ti-6Al-4V titanium alloys under MQL, Shokrani et al [72] proposes a hybrid cryogenic/MQL method, for improving tool life in the machining of this alloy. This method was tested against MQL conditions, and the surface roughness of the workpiece and tool life were analyzed.…”

Section: Coated Tools Behavior Under Advanced Cutting and Lubricationmentioning

confidence: 99%

Recent Advances on Coated Milling Tool Technology—A Comprehensive Review

Sousa

Silva

2020

Coatings

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The milling process is one of the most used processes in the manufacturing industry. Milling, as a process, as evolved, with new machines and methods being employed, in order to obtain the best results consistently. Milling tools have also seen quite an evolution, from the uncoated high-speed steel tool, to the now vastly used, coated tools. Information on the use of these coated tools in recent scientific researches was collected. The coatings that are currently being researched are going to be presented, highlighting some novel advances in the nanocomposite and diamond coatings area, as these coatings are seeing a growing use in the industry, with very satisfactory results, with performance and tool-life increase. Wear mechanism of various types of coatings are also a popular topic on recent research, as the cutting behavior of these coated tools provides valuable information on the tool’s-life. Furthermore, analysis of these mechanisms enables for the selection of the best coating type for the correct application. Recently, the employment of coated tools paired with sustainable lubrication methods as seen some use. As this presents the opportunity to enhance the coated tool’s and the process’s performance, obtaining better results, in terms of better tool-life and better surface finish quality, in a more sustainable fashion.

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Section: Coated Tools Behavior Under Advanced Cutting and Lubricationmentioning

confidence: 99%

Recent Advances on Coated Milling Tool Technology—A Comprehensive Review

Sousa

Silva

2020

Coatings

View full text Add to dashboard Cite

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“…The first one was used to measure the voltage (V), and the second one for measuring the current (I). The power (P) was calculated according to Equation (1).…”

Section: Methodsmentioning

confidence: 99%

“…When compared to other materials, titanium alloys show low density, high hot strength and hardness, and superior corrosion resistance and fracture toughness. Due to the fact of its well-known combination of mechanical and thermal properties, the industrial interest in the use of this type of alloy recently generated a dramatic increase in demand [1,2]. High hot strength and hardness promote premature tool wear and failure.…”

Section: Introductionmentioning

confidence: 99%

Multi-Response Optimization in High-Speed Machining of Ti-6Al-4V Using TOPSIS-Fuzzy Integrated Approach

et al. 2020

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Titanium alloys are widely used in various applications including biomedicine, aerospace, marine, energy, and chemical industries because of their superior characteristics such as high hot strength and hardness, low density, and superior fracture toughness and corrosion resistance. However, there are different challenges when machining titanium alloys because of the high heat generated during cutting processes which adversely affects the product quality and process performance in general. Thus, optimization of the machining conditions while machining such alloys is necessary. In this work, an experimental investigation into the influence of different cutting parameters (i.e., depth of cut, cutting length, feed rate, and cutting speed) on surface roughness (Rz), flank wear (VB), power consumption as well as the material removal rate (MRR) during high-speed turning of Ti-6Al-4V alloy is presented and discussed. In addition, a backpropagation neural network (BPNN) along with the technique for order of preference by similarity to ideal solution (TOPSIS)-fuzzy integrated approach was employed to model and optimize the overall cutting performance. It should be stated that the predicted values for all machining outputs demonstrated excellent agreement with the experimental values at the selected optimal solution. In addition, the selected optimal solution did not provide the best performance for each measured output, but it achieved a balance among all studied responses.

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“…Thermal conductivity of titanium alloys is low, ca. 1/6 that for steel [ 33 ], and it can be assumed as 6.7 W/(m·K) [ 34 ]. It results in heat concentration on the cutting edge and the rake face of the tool during machining.…”

Section: Methodsmentioning

confidence: 99%

Effect of Yttrium and Rhenium Ion Implantation on the Performance of Nitride Ceramic Cutting Tools

et al. 2020

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In the paper, the results of experimental investigations of ion implanted cutting tools performance are presented. The tools, made out of Si3N4 with additives typically used for turning of Ti-6Al-4V alloy, underwent implantation with ions of yttrium (Y+) and rhenium (Re+) using the metal vapor vacuum arc method. Distribution of ions on the tool surface was measured. The cutting tools were tested in turning process with measurement of cutting forces and analysis of wear. A rather unexpected result was the increased wear of the tool after Y+ implantation with 1 × 1017 ion/cm2. It was demonstrated, however, that the tool after Y+ 2 × 1017 ion/cm2 ion implantation provided the best machining performance.

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Hybrid cryogenic MQL for improving tool life in machining of Ti-6Al-4V titanium alloy

Cited by 172 publications

References 56 publications

Recent Advances on Coated Milling Tool Technology—A Comprehensive Review

Recent Advances on Coated Milling Tool Technology—A Comprehensive Review

Multi-Response Optimization in High-Speed Machining of Ti-6Al-4V Using TOPSIS-Fuzzy Integrated Approach

Effect of Yttrium and Rhenium Ion Implantation on the Performance of Nitride Ceramic Cutting Tools

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