Optimization of process parameters in CNC turning process on machining SCM440 steel by uncoated carbide and TiCN/Al2O3/TiN coated carbide tool under dry conditions

Arunnath, A.; Masooth, P. Haja Syeddu

doi:10.1016/j.matpr.2020.10.699

Cited by 9 publications

(5 citation statements)

References 5 publications

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“…e increased cutting speed increases the average surface roughness for the uncoated cutting tool, while there is a marginal change for the coated tool. is behavior tallies with results presented by [48,49]. is is because the rapid deformation of the uncoated tools brings about an increase in surface roughness due to the material's deformation hardening property.…”

Section: S/n Ratio Analysissupporting

confidence: 86%

Optimization of Surface Quality and Power Consumption in Machining Hardened AISI 4340 Steel

Ochengo

Zhao

et al. 2022

Advances in Materials Science and Engineering

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Hard turning has become an attractive method of machining for most manufacturers in the last few years due to its low cost and superior surface quality compared to grinding. In this experimental study, the machinability of hardened steel under dry machining on a CNC lathe is undertaken to optimize the cutting parameters for minimum surface roughness and energy consumption with the cutting speed (320, 450, and 575), tool type (coated and uncoated), and feed rate (0.1, 0.18, and 0.26) as the input parameters. The Taguchi method, based on the L18 orthogonal array, the variance analysis, the signal-to-noise ratios, and the response surface methodology have been used to optimize surface roughness (Ra) and cutting power (Cp). Optimum cutting parameters and levels were determined, and the relationship between cutting parameters and output variables was analyzed with the aid of two-dimensional and three-dimensional graphics. The results show that the most effective parameter on the surface roughness was the tool type (78%), while the most effective parameter on energy consumption was the cutting speed (90%). The combination of low feed rate and high cutting speed is necessary for minimizing the surface roughness. Besides, the impact of two-factor interactions of the feed rate-cutting speed and depth of cut-cutting speed appears to be substantial. The linear regression models were validated using confirmation tests. Finally, regression coefficients were determined as a mathematical model, and it was observed that this estimated model yielded results that were very similar to those achieved via real experiment (correlation values: 97.64% for surface roughness and 98.72% for energy consumption).

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Section: S/n Ratio Analysissupporting

confidence: 86%

Optimization of Surface Quality and Power Consumption in Machining Hardened AISI 4340 Steel

Ochengo

Zhao

et al. 2022

Advances in Materials Science and Engineering

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“…This is due to the improvement of the mechanical properties of the tool by the coating, such as increased hardness, oxidation resistance, toughness, thermal stability (ability to retain microstructure at higher temperatures) and reduced friction coefficient. The employment of tool coatings also contributes for a better surface quality of the machined part [18] and reduction of the cutting forces developed during the machining process (especially due to reduction in friction coefficient), still a very important aspect in today's research of these cutting processes [19]. However, regarding tool-tip temperature and machining temperature, it has been reported that coated tools usually experience higher machining temperatures than uncoated tools [20].…”

Section: Introductionmentioning

confidence: 99%

Characteristics and Wear Mechanisms of TiAlN-Based Coatings for Machining Applications: A Comprehensive Review

Sousa

Silva

Pinto

et al. 2021

Metals

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The machining process is still a very relevant process in today’s industry, being used to produce high quality parts for multiple industry sectors. The machining processes are heavily researched, with the focus on the improvement of these processes. One of these process improvements was the creation and implementation of tool coatings in various machining operations. These coatings improved overall process productivity and tool-life, with new coatings being developed for various machining applications. TiAlN coatings are still very present in today’s industry, being used due to its incredible wear behavior at high machining speeds, high mechanical properties, having a high-thermal stability and high corrosion resistance even at high machining temperatures. Novel TiAlN-based coatings doped with Ru, Mo and Ta are currently under investigation, as they show tremendous potential in terms of mechanical properties and wear behavior improvement. With the improvement of deposition technology, recent research seems to focus primarily on the study of nanolayered and nanocomposite TiAlN-based coatings, as the thinner layers improve drastically these coating’s beneficial properties for machining applications. In this review, the recent developments of TiAlN-based coatings are going to be presented, analyzed and their mechanical properties and cutting behavior for the turning and milling processes are compared.

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“…Al 2 O 3 –Ti(C,N) has been widely used in the cutting industry because of its high hardness, high wear resistance, and chemical durability 1,2 . Due to the low toughness of the Al 2 O 3 –Ti(C,N) composites, they are often used for the coating of cemented carbide tools 3–5 . However, Al 2 O 3 –Ti(C,N)‐based cutting tools can help greatly in improving the cutting speed, cutting life of the tools, and surface quality of the workpiece 6 .…”

Section: Introductionmentioning

confidence: 99%

“…1,2 Due to the low toughness of the Al 2 O 3 -Ti(C,N) composites, they are often used for the coating of cemented carbide tools. [3][4][5] However, Al 2 O 3 -Ti(C,N)-based cutting tools can help greatly in improving the cutting speed, cutting life of the tools, and surface quality of the workpiece. 6 Therefore, improving the toughness of Al 2 O 3 -Ti(C,N) composite materials is an urgent problem to be solved for their wide application.…”

Section: Introductionmentioning

confidence: 99%

cBN‐reinforced Al₂O₃–Ti(C,N) composites with high toughness sintered under oscillatory pressure

Zhang,

Cao,

Meng

et al. 2023

Int J Applied Ceramic Tech

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High‐toughness Al2O3–Ti(C,N) composites reinforced by cBN particles were prepared by the new oscillating pressure sintering technique. The density, phase, and microstructure evolution of the Al2O3–Ti(C,N)‐cBN composites sintered at different temperatures were studied, and their effects on the mechanical properties were investigated. The results show that when the sintering temperature increases from 1300 to 1500°C, the heat preservation time shortens, whereas the density and interface bonding strength of the composites increase. In addition, cBN particles can play the role of crack bridging and be pulled out when the composites fracture, improving the toughness of the Al2O3–Ti(C,N)–cBN composites. However, when the sintering temperature further rises to 1600°C, a new phase of TiB2 forms, and the solid solubility of C and N in Ti(C,N) increases, leading to a decrease in density and mechanical properties. As a result, when the Al2O3–Ti(C,N)–cBN composite is sintered at 1500°C, its mechanical properties reach the maximum values of 21.5 GPa, 5.7 MPa m1/2, and 731 MPa for hardness, fracture toughness, and flexural strength, respectively.

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Optimization of process parameters in CNC turning process on machining SCM440 steel by uncoated carbide and TiCN/Al2O3/TiN coated carbide tool under dry conditions

Cited by 9 publications

References 5 publications

Optimization of Surface Quality and Power Consumption in Machining Hardened AISI 4340 Steel

Optimization of Surface Quality and Power Consumption in Machining Hardened AISI 4340 Steel

Characteristics and Wear Mechanisms of TiAlN-Based Coatings for Machining Applications: A Comprehensive Review

cBN‐reinforced Al₂O₃–Ti(C,N) composites with high toughness sintered under oscillatory pressure

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Optimization of process parameters in CNC turning process on machining SCM440 steel by uncoated carbide and TiCN/Al2O3/TiN coated carbide tool under dry conditions

Cited by 9 publications

References 5 publications

Optimization of Surface Quality and Power Consumption in Machining Hardened AISI 4340 Steel

Optimization of Surface Quality and Power Consumption in Machining Hardened AISI 4340 Steel

Characteristics and Wear Mechanisms of TiAlN-Based Coatings for Machining Applications: A Comprehensive Review

cBN‐reinforced Al2O3–Ti(C,N) composites with high toughness sintered under oscillatory pressure

Contact Info

Product

Resources

About

cBN‐reinforced Al₂O₃–Ti(C,N) composites with high toughness sintered under oscillatory pressure