Machinability Analysis of Inconel 718 Superalloy with AlTiN-Coated Carbide Tool Under Different Cutting Environments

Çakıroğlu, Ramazan

doi:10.1007/s13369-021-05626-3

Cited by 29 publications

(11 citation statements)

References 49 publications

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Section: Resultsmentioning

confidence: 99%

“…In addition, a "higher is better" approach is practiced to achieve optimum levels, as a high GRG is targeted according to S/N ratios of the responses. 39 According to this approach, the following equation is used to calculate the S/N ratios.…”

Section: Experimental Design and Optimizationmentioning

confidence: 99%

“…Due to the unit of every response is dissimilar, the measuring outcomes are identified between 0 and 1 and the variance value is reached for every sequence by the use of equations given in the academic studies. 39,51 The GRG results have been determined by taking the mean of relational coefficient of the parameters in the experimental series (Table 4). The maximum GRG rate or S/N value shows the most suitable machining parameters for minimization of the Fr, Ra, and Pc, in the present work.…”

Section: Optimization By Grey Relational Analysismentioning

confidence: 99%

“…In addition, a “higher is better” approach is practiced to achieve optimum levels, as a high GRG is targeted according to S/N ratios of the responses. 39 According to this approach, the following equation is used to calculate the S/N ratios.Here, y i is the i th measuring of the experimental data, and n is the number of measuring in every experiment. Based on the method, the largest S/N value shows the optimal machining parameters for the corresponding output.…”

Section: Experimental and Statistical Detailsmentioning

confidence: 99%

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Modeling and multiple optimization in face milling of hardfacing welding applied steel: Force, roughness, power

Günay

2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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The coating performance for indexable inserts is very important for the main machinability indicators such as energy consumption, cutting force, and surface quality, especially in milling operations. The present study intend to the comprehensive analysis of machining conditions for above mentioned machinability indicators that can be considered most important for sustainability in hard milling of a worn machine part. First, the worn zone of the shearing blade made of X40CrMoV5-1 hot work tool steel was filled with electric arc welding. Then, hard milling experiments were carried out to analyze the performance of different coated carbide inserts in the machining of the hardfacing welded part. Experiments were performed by applying L18 experimental design for invariable cutting depth, three different cutting speed, and feed rate with PVD-AlTiCrN and CVD-TiCN/Al2O3/TiN coated inserts. Machining parameters for the responses namely the resultant force (Fr), surface roughness (Ra), and cutting power (Pc) were simultaneously optimized via applying Taguchi-based grey relationship analysis. Finally, predictive models for the responses were developed by RSM. The results obtained by both coatings shown that the Fr and Ra are mainly influenced by the feed rate, while cutting speed is the parameter that most influenced the Pc. The optimum results with regards to the responses were obtained with the PVD-AlTiCrN coated tool. In the current study, the developed quadratic models and probability graphs indicated that the responses were highly predictable.

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Section: Resultsmentioning

confidence: 99%

Section: Experimental Design and Optimizationmentioning

confidence: 99%

Section: Optimization By Grey Relational Analysismentioning

confidence: 99%

Section: Experimental and Statistical Detailsmentioning

confidence: 99%

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Modeling and multiple optimization in face milling of hardfacing welding applied steel: Force, roughness, power

Günay

2022

Proceedings of the Institution of Mechanical Engineers, Part C:

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“…Inconel 718 belongs to the group of heat-resistant alloys based on nickel, also called superalloys [1] or high-strength alloys [2]. Due to its mechanical and physical properties, such as high strength [3] and creep resistance at high temperatures, it is widely used in the aircraft and aerospace industries, as well as in gas turbines and nuclear reactors [4][5][6][7]. The numerous advantages of this alloy result in it being used in extraordinarily severe conditions, such as those inside the combustion chamber of an aircraft engine [8,9], where heat resistance [10,11] and precision of the manufacturing of parts are extremely important, because they influence the safety of passengers during flight.…”

Section: Introductionmentioning

confidence: 99%

Anomalies in the Geometric Surface Structure of Shaped Elements Composed of Inconel 718 Alloy

et al. 2021

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This paper presents the results of investigation that was performed on shafts composed of Inconel 718. Tests were performed in dry and wet conditions. Cutting parameters, such as feed and depth of cut, were constant. The cutting speed was changed. The investigation was performed for various shaft shapes: cylindrical, taper 30°, taper 45°, and sphere. For that reason, the value of the angle between the machined surface and the cutting edge changed. The lowest values of the roughness parameters, Ra and Rz, were obtained for a larger value of the angle between the machined surface and cutting edge. The investigation showed that cutting speed, machining conditions (dry and wet machining), and the variable angle between the machined surface and the cutting edge influenced the surface roughness. Application of a higher cutting speed resulted in lower roughness values. Lower values of roughness parameters were obtained by wet machining.

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The friction mechanics model within chip-tool-workpiece dual interfaces for cutting nickel-based superalloy at the cooling and lubrication conditions of the three forms oil-on-water mist in wide temperature range

Tang

Zhang

et al. 2023

Int J Adv Manuf Technol

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Nickel based superalloy has been extensively applied in the critical mechanical bearing components, such as aeroengine owing to its excellent performance at high temperature, but its machinability has always been dissatisfied. In order to improve processing efficiency, reduce cost, and decrease environmental pollution, in this paper, the friction mechanics model within chip-tool-workpiece dual interfaces was established in turning of S-type difficult-to-machine nickel based superalloy Inconel 718 utilizing the PVD TiAlN coated carbide tool under the cooling and lubrication conditions of three forms oil-on-water mist in wide temperature range (-30 ℃ ~ 150 ℃)(high temperature oil-on-water mist (150 ℃), normal temperature oil-on-water mist (20 ℃), and low temperature oil-on-water mist (-30 ℃)). Meanwhile the influence law and mechanism of the cutting speed, depth of cut, and feed on the three-way cutting forces, friction coefficient between chip-tool-workpiece dual interfaces, and normal stress and tangential stress in chip-tool interface have been studied. The results showed that the lowest and highest friction coefficient within chip-tool interface was obtained at the conditions of the high temperature oil-on-water mist (HTOoW) and the normal temperature oil-on-water mist (NTOoW), respectively.The most notable influence of the low temperature oil-on-water mist (LTOoW) on the strain hardening, strain rate hardening, and thermal softening of the materials occurred.

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Machinability Analysis of Inconel 718 Superalloy with AlTiN-Coated Carbide Tool Under Different Cutting Environments

Cited by 29 publications

References 49 publications

Modeling and multiple optimization in face milling of hardfacing welding applied steel: Force, roughness, power

Modeling and multiple optimization in face milling of hardfacing welding applied steel: Force, roughness, power

Anomalies in the Geometric Surface Structure of Shaped Elements Composed of Inconel 718 Alloy

The friction mechanics model within chip-tool-workpiece dual interfaces for cutting nickel-based superalloy at the cooling and lubrication conditions of the three forms oil-on-water mist in wide temperature range

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