Effects of cryogenic treatment types on the performance of coated tungsten tools in the turning of AISI H11 steel

Özbek, Nursel Altan

doi:10.1016/j.jmrt.2020.03.038

Cited by 42 publications

(22 citation statements)

References 25 publications

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“…On the other hand, the η-phase has 81.41% W, 10.02% C, and 6.83% Co according to the EDS II. This situation indicated that the n phase takes a more stable form because of the form of a denser, more harmonious with larger tungsten carbide particles during the cryogenic treatment as suggested by Özbek [12].…”

Section: Microstructure and Hardnessmentioning

confidence: 69%

Optimization of Cutting Parameters Affecting Surface Roughness in Turning of Inconel 625 Superalloy by Cryogenically Treated Tungsten Carbide Inserts

Akgün

Demir

2021

SN Appl. Sci.

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This work focuses on developing the mathematical model of surface roughness (Ra) in the turning of Inconel 625 superalloy with cryogenically treated tungsten carbide inserts. The influence of cryogenic treated on the microstructure and hardness of tungsten carbide tools was also investigated for the as-received inserts and deep cryogenic treatment at − 196 °C for 12, 24, and 36 h conditions. Turning experiments have been performed according to an orthogonal array L16 with three parameters (cutting tool, feed rate, cutting speed) at different levels with a 1 mm depth of cut. The ideal cutting tool and cutting parameters were evaluated in terms of the surface roughness (Ra). Analysis of Variance has been applied to determine the percentage of each cutting factor. It has been observed that the cutting speed has a maximum with 66.28% contribution on Ra. The best optimal turning parameters are obtained as A3B3C1 according to S/N ration. The mathematical model of Ra has been developed by regression analysis. The developed model is tested with verification experiments and found to be in good agreement with the experimental results.

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Section: Microstructure and Hardnessmentioning

confidence: 69%

Optimization of Cutting Parameters Affecting Surface Roughness in Turning of Inconel 625 Superalloy by Cryogenically Treated Tungsten Carbide Inserts

Akgün

Demir

2021

SN Appl. Sci.

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“…The obtained results showed a significant influence of the feed and a slight influence of the cutting speed on the roughness parameters. These dependencies are reflected in the literature [21,22]. Moreover, it was showed that type of lubricating liquid also affects the surface roughness.…”

Section: Surface Roughnessmentioning

confidence: 70%

Influence of Minimum Quantity Lubrication Using Vegetable-Based Cutting Fluids on Surface Topography and Cutting Forces in Finish Turning of Ti-6Al-4V

Lisowicz¹,

Habrat²,

Krupa³

2022

Adv. Sci. Technol. Res. J.

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Titanium alloys are included in the group of diffi cult-to-cut materials. The use of diff erent methods to reduce the temperature of the machining zone is one of the factors infl uencing the performance of the machining. The most commonly used method is fl ood cooling. On the basis of recent research, the conventionally used cutting fl uids can cause some health problems for machine operators. Moreover, it was found that they can cause some problems for the environment during storage and disposal. Therefore, in recent years, the aspects of the use of biodegradable fl uids and the reduction of the number of metalworking fl uids used in machining processes have received much more attention. In this study, the eff ect of the application of three diff erent vegetable oil-based cutting fl uids was evaluated for minimum quantity lubrication (MQL) in fi nishing the Ti-6Al-4V titanium alloy on surface topography and cutting force components. The same tests were conducted for dry cutting conditions and the results were compared with those after machining with MQL. It was found that the best surface roughness was obtained with the use of the mixture of 50% vegetable oil and 50% diester (1PR20) under all the cutting parameters considered. The biggest diff erences in the values of the Sa and Sz parameters can be noticed for the lowest feed rate. For the feed rate f = 0.1 mm/rev, the Sa parameter values were approximately 32% and 24% lower for MQL with 1PR20 compared to MQL to LB2000 and dry cutting conditions, respectively. In terms of cutting force components, the lowest values were obtained for the MQL with 1PR20 machining. The values of the main cutting force were about 15% lower compared to the MQL with LB2000 cutting conditions for all the cutting parameters considered.

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“…Ozbek, N.A. ( 2020) [19] In this research article, experimental work completed on AISI H11under dry and cryogenic cooling (UT, SCT6, DCT6, DCT24). After this research work, result was found that DCT 24 provide significance result for Ra, flank wear, micro hardness.…”

Section: Author Namementioning

confidence: 99%

Role of Sustainable Techniques in Manufacturing Process: A Review

Sharma

Jha

Pahuja

2021

Int. J. Eng. Tech. Mgmt. Res.

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This present research was on the comparison of the efficacious use of basalt and granite as coarse aggregates in concrete work. In order to obtain the basis for comparison, physical and structural tests were conducted on the different materials of the concrete and the concrete samples respectively. Physical test results revealed that basalt have a specific gravity of 2.8 and 2.5, while granite have a specific gravity of 2.9 and 2.6. In density, basalt have a density of 1554.55kg/m3 while granite had a density of 1463.64kg/m3. Aggregate impact test conducted on both aggregates revealed a percentage of 11.05% for basalt and 12.63% for granite. The following structural tests were carried out: compressive strength tests, flexural and tensile strength test and the comparative results are as follows. Compressive strength for basalt 36.39N/mm2 while 37.16N/mm2 for granite. 24.81N/mm2 tensile strength for basalt while 12.57N/mm2 for granite, 31.83N/mm2 flexural strength for basalt while 27.97N/mm2 for granite. From the above results, it can be deduced that basalt has higher strength properties than granite. Therefore, more suitable for coarse aggregate in achieving higher strength with some quantity of other composition of the concrete mix when compared to granite.

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Effects of cryogenic treatment types on the performance of coated tungsten tools in the turning of AISI H11 steel

Cited by 42 publications

References 25 publications

Optimization of Cutting Parameters Affecting Surface Roughness in Turning of Inconel 625 Superalloy by Cryogenically Treated Tungsten Carbide Inserts

Optimization of Cutting Parameters Affecting Surface Roughness in Turning of Inconel 625 Superalloy by Cryogenically Treated Tungsten Carbide Inserts

Influence of Minimum Quantity Lubrication Using Vegetable-Based Cutting Fluids on Surface Topography and Cutting Forces in Finish Turning of Ti-6Al-4V

Role of Sustainable Techniques in Manufacturing Process: A Review

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