Investigation of tool wear, surface roughness, sound intensity, and power consumption during hard turning of AISI 4140 steel using multilayer-coated carbide inserts

Şahinoğlu, Abidin; Rafighi, Mohammad

doi:10.36909/jer.8783

Cited by 13 publications

(6 citation statements)

References 21 publications

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“…Thus, the temperature distribution can be expressed then in a dimensionless form in terms of the Biot number. Considering that the perimeter 𝑃 multiplied by the length of the fin 𝐿 is equal to the total area of the lateral surface (Şahinoğlu and Rafighi, 2021):…”

Section: Methods and Validation A Introductory Elements On Heat Trans...mentioning

confidence: 99%

Optimal Profile for a Fin of Constant Cross Section With Modelation of the Thermophysical Properties

Camaraza-Medina

Hernández-Guerrero

Luviano‐Ortiz

2023

Preprint

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The dependence of the temperature and composition on thermal conductivity of steel, and its influence in the optimal profile for a fin of constant cross section to be used in air cooled condenser is presented. In Air Cooled Condensers (ACC), air is used as refrigerant, which forces the need for fins to improve the heat transfer process leading to appreciable increments in the costs of the installation. Therefore, developing better fins profile will allow optimizing the operation, maximizing the heat transfer and minimizing the manufacturing cost of the fins. To this objective, in the present paper, three geometric parameters, thickness, height and surface of heat transfer of the fin, this parameters influence directly the optimal obtained profile for conditions of maximum heat flux and optimal Biot number. The study was accomplished for fins of constant cross section. In a future work, fins of variable cross sections will be considered.

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Section: Methods and Validation A Introductory Elements On Heat Trans...mentioning

confidence: 99%

Optimal Profile for a Fin of Constant Cross Section With Modelation of the Thermophysical Properties

Camaraza-Medina

Hernández-Guerrero

Luviano‐Ortiz

2023

Preprint

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“…From the analysis of table 2 and fig. 6, it can be concluded that TiN carbide insert tools have better wear resistance than TiAlN/Al2O3, this is because the titanium nitride (TiN) coating has lubricating properties that reduce friction between the cutting insert and the workpiece, thereby preventing temperature increases at higher cutting speeds and consequently slowing the growth of tool wear [17].…”

Section: 1mentioning

confidence: 99%

Untitled

2022

Jurnal Polimesin

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This research carried out experimental tests to determine the tool life and wear of Titanium Aluminum Nitride and Titanium Nitride-coated carbide tools (TiAlN/Al2O3 & TiN) during the hard facing process of cam shaft material turning. The results of this study will be used as a parameter for selecting carbide cutting tools in Teaching Factory (TEFA) activities. In the cutting process, the parameters used are VC = 36,74 m/min, f = 0,52 mm/rev, a = 0,2 mm, t = 460 min; and the cutting conditions are wet turning. The results showed that the TiAlN/ Al2O3-coated carbide tool experienced tool wear at the 100th minute with a VB value of 0,33 mm, while the TiN-coated carbide tool experienced tool wear at the 200th minute with a VB value of 0,30 mm. Theoretically, tool life for turning process conditions was analysed by graphical method in order to obtain the Taylor equation for TiAlN/Al2O3 coated carbide tools with an exponent value of n = 0,8 and a CT constant = 1.462,65 so that the Taylor tool life equation is V.Tn = CT ↔ V.T0,8 = 1.462,65. The results of the TiN carbide tool life test showed that the exponent n = 0,6 and CT constant = 882,59 so that the Taylor tool life equation is V.Tn = CT ↔ V.T0,6 = 882,59. Failure of TiAlN/Al2O3 and TiN-coated carbide tools on hard-processed cam shaft material cutting to face edge wear (VB), crater wear (KA), peeling of the tool material layer, and formation of built-up edge (BUE). The experimental test results of TiAlN/Al2O3 and TiN-coated carbide tools on the cutting of cam shaft material using a hard facing process show TiN carbide tools have a longer tool life than TiAlN/Al2O3, so they are recommended for Teaching Factory (TEFA) activities at Simas Berau Polytechnic

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“…17 This material has excellent corrosion resistance, high hardness, high strength, good formability, and good weldability. [18][19][20] Thanks to the amount of carbon in its chemical composition, AISI 4140 steel can reach high hardness through heat treatment. Therefore, AISI 4140 steels are widely used in hard turning processes.…”

Section: Introductionmentioning

confidence: 99%

Effects of shallow cryogenic treatment on surface characteristics and machinability factors in hard turning of AISI 4140 steel

Rafighi

2022

Proceedings of the Institution of Mechanical Engineers, Part E:

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Hardened AISI 4140 steel is widely used in automotive industries due to its high strength, high hardness, and good formability. It can be subjected to cryogenic treatments to increase wear resistance, increase the toughness and decrease the residual stress. Although many studies have been performed related to the machinability of AISI 4140 steel, the number of studies that considered four responses simultaneously are limited. In this study, the effects of cutting speeds, feed rates, and depths of cut on the vibration, motor current, machining noise, and surface roughness were investigated in turning hardened AISI 4140 steel using coated carbide insert under dry cutting conditions. Besides, the attempt was made to predict surface roughness based on machining noise, motor current, and chuck vibration during the turning process. Analysis of variance and response surface methods were carried out to analyze the experimental results and the prediction models were developed. The machining test revealed that the most effective parameter on the surface roughness value was the feed rate with a 96.07% contribution. The depth of cut and the feed rate affected vibration with 57.61% and 26.44% contribution, respectively. The machining noise was dominantly affected by the depth of cut with 76.15% contribution, it was followed by feed rate with 17.67% contribution. However, feed rate and depth of cut significantly affect motor current with 54.53% and 36.64% contribution, respectively. The graphical analysis of the effect of vibration, motor current, and machining noise on the surface roughness was presented. Based on the results, there is a direct relationship between machining noise, vibration, and motor current with surface roughness. As the level of the aforementioned responses increases the quality of the machined surface deteriorates.

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Investigation of tool wear, surface roughness, sound intensity, and power consumption during hard turning of AISI 4140 steel using multilayer-coated carbide inserts

Cited by 13 publications

References 21 publications

Optimal Profile for a Fin of Constant Cross Section With Modelation of the Thermophysical Properties

Optimal Profile for a Fin of Constant Cross Section With Modelation of the Thermophysical Properties

Untitled

Effects of shallow cryogenic treatment on surface characteristics and machinability factors in hard turning of AISI 4140 steel

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