Effect Of Machining Parameters On Cutting Tool Temperature And Tool Life While Turning EN24 And Hchcr Grade Alloy Steel

Asha, P.B.; Rao, C.R. Prakash; Kiran, R.; Kumar, D. V. Ravi

doi:10.1016/j.matpr.2018.02.152

Cited by 13 publications

(7 citation statements)

References 9 publications

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“…Otherwise, the MTCVD TiCN/Al 2 O 3 //TiN proved to be better at turning the other steels. The authors also found that the hardness and microstructure of these steels were the limiting factor, meaning that the carbide fraction that is present in the steel microstructure limits tool life, due to the impact on the cutting edge, similar to the study presented in the beginning of the chapter by Asha et al [73].…”

Section: Tool Lifesupporting

confidence: 66%

“…Machining parameters also influence the tool's life, such as cutting speed, feed rate and even tool geometry, as there are some papers that study the influence of the micro-textures of cutting tools, relating their surface geometry with tool life [72]. Regarding the influence of machining parameters on cutting tool life, the study carried out by Asha et al [73], analyzes the effect of these parameters on cutting temperature and tool life while turning EN24 and HCHCr Grade alloy steel. The authors carried out tests where the cutting speed and feed rate were varied, and the depth of the cut was kept constant.…”

Section: Tool Lifementioning

confidence: 99%

See 1 more Smart Citation

Recent Advances in Turning Processes Using Coated Tools—A Comprehensive Review

Sousa

Silva

2020

Metals

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Turning continues to be the largest segment of the machining industry, which highlights the continued demand for turned parts and the overall improvement of the process. The turning process has seen quite an evolution, from basic lathes using solid tools, to complex CNC (Computer Numerical Control) multi-process machines, using, for the most part, coated inserts and coated tools. These coatings have proven to be a significant step in the production of high-quality parts and a higher tool life that have captivated the industry. Continuous improvement to turning coated tools has been made, with many researches focusing on the optimization of turning processes that use coated tools. In the present paper, a presentation of various recently published papers on this subject is going to be made, mentioning the various types of coatings that have recently been used in the turning process, the turning of hard to machine materials, such as titanium alloys and Inconel, as well as the interaction of these coatings with the turned surfaces, the wear patterns that these coatings suffer during the turning of materials and relating these wear mechanisms to the coated tool’s life expectancy. Some lubrication conditions present a more sustainable alternative to current methods used in the turning process; the employment of coated tool inserts under these conditions is a current popular research topic, as there is a focus on opting for more eco-friendly machining options.

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Section: Tool Lifesupporting

confidence: 66%

Section: Tool Lifementioning

confidence: 99%

Recent Advances in Turning Processes Using Coated Tools—A Comprehensive Review

Sousa

Silva

2020

Metals

View full text Add to dashboard Cite

show abstract

“…30 Since influence of some factors is assumed as negligible and other factors are unknown, tool wear is considered as uncertain and relatively complex process. Reliability model is established according to equation (7), where C, p, and q are random constants variables. The model can be used to predict tool life reliability for various cutting parameters.…”

Section: Tool Life Reliability Analysismentioning

confidence: 99%

Turning tool life reliability analysis based on approximate Bayesian theory

Gao

Huang

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part O:

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Turning tool is a critical part of numerical control machining, and its reliability directly affects machining efficiency and stability of the entire system. Turning tool life reliability analysis has major theoretical and practical significance. Laboratory test data or information monitoring are one of commonly employed methods for assessing mechanical performance. This information is conducive for determining mechanical property distribution and assessing the structural reliability. Therefore, experimental monitoring data is incorporated into turning tool life reliability analysis to obtain adequate evaluation results. Considering tool wear process uncertainty, reliability model based on Taylor tool life equation is proposed. Approximate Bayesian theory is introduced to update reliability model parameters. According to obtained parameter posterior samples, tool life reliability is analyzed via Monte Carlo simulation. Effectiveness of the proposed method is validated against experimental samples of turning tool wear. Results of tool life reliability analysis are in accordance with the actual working conditions, which provides a theoretical basis for the selection of numerical control machining process parameters and tool replacement strategies.

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“…Numerous efforts have been made to increase the productivity of the machining process, including optimization of the cutting parameters, first of all cutting speed [7][8][9], development of novel coolants and lubricants, as well as methods of their supply into the cutting zone [10,11], and, most importantly, surface engineering of the cutting tool [12,13]. The deposition of the coatings on the cemented carbide tool substrate is one of the most commonly used ways of significantly enhancing the tool performance.…”

Section: Introductionmentioning

confidence: 99%

A Comprehensive Study of Al0.6Ti0.4N Coatings Deposited by Cathodic Arc and HiPIMS PVD Methods in Relation to Their Cutting Performance during the Machining of an Inconel 718 Alloy

et al. 2021

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The structural, physical–chemical, and micromechanical characteristics of Al0.6Ti0.4N coatings deposited by different physical vapor deposition (PVD) methods, such as cathodic arc deposition (CAD), as well as advanced HiPIMS techniques were investigated in terms of their cutting performance during the machining of an Inconel 718 alloy. XRD studies had revealed that the HiPIMS coating featured lower residual stresses and more fine-grained structure. Electrochemical characterization with the potentiostat-impendence method shows that the HiPIMS coating has a significantly lower porosity than CAD. SEM and AFM studies of the surface morphology demonstrate that the HiPIMS coating has a smoother surface and an absence of droplet phases, in contrast with CAD. XRD, combined with FIB/TEM studies, shows a difference in the crystal structure of both coatings. The micromechanical characteristics of each coating, such as hardness, elastic modulus, fracture toughness, and adhesion to the substrate, were evaluated. The HiPIMS coating was found to possess a more beneficial combination of micromechanical properties compared to CAD. The beneficial characteristics of the HiPIMS coating alleviated the damage of the coated layer under operation. Combined with grain size refinement, this results in the improved adaptive performance of the HiPIMS coating through the formation of a greater amount of thermal barrier sapphire tribo-films on the friction surface. All of these characteristics contribute to the reduction of flank and crater wear intensity, as well as notching, leading to an improvement of the HiPIMS coating’s tool life.

show abstract

Effect Of Machining Parameters On Cutting Tool Temperature And Tool Life While Turning EN24 And Hchcr Grade Alloy Steel

Cited by 13 publications

References 9 publications

Recent Advances in Turning Processes Using Coated Tools—A Comprehensive Review

Recent Advances in Turning Processes Using Coated Tools—A Comprehensive Review

Turning tool life reliability analysis based on approximate Bayesian theory

A Comprehensive Study of Al0.6Ti0.4N Coatings Deposited by Cathodic Arc and HiPIMS PVD Methods in Relation to Their Cutting Performance during the Machining of an Inconel 718 Alloy

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