Effect of cryogenic treatment on the microstructure and the wear behavior of WC-Co end mills for machining of Ti6Al4V titanium alloy

Çelik, Osman Nuri; Sert, Abdullah; Gaşan, Hakan; Ulutan, Mustafa

doi:10.1007/s00170-017-1444-1

Cited by 24 publications

(8 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Whereas duplex-treated coatings do not show any significant impact on the microhardness of the coatings due to the stabilization of the phases after heat treatment. Previous research suggests that soaking duration does not significantly affect the hardness, as also observed in the current results [28,29].…”

Section: Structural Characterization and Microhardnesssupporting

confidence: 84%

“…The ϵ-Co phase has fewer slip systems than the α-Co phase and hence, the ϵ-Co phase is hard to deform and also exhibits higher strength and hardness [18]. The α-Co to ϵ-Co transformation happens after the cryogenic treatment [28,29]. From the XRD analysis, it can be observed that after cryogenic treatment, the amount of ϵ-Co increased as the cryogenic treatment duration increased.…”

Section: Resultsmentioning

confidence: 99%

“…When comparing the COF of the samples with different cryogenic treatment duration, the sample with a higher cryogenic treatment duration (24 h) provides a lower COF. The formation of more η-carbides helps to reduce the COF of the coatings [18,28]. The 8 CT and 24 CT coatings have some fluctuations in the COF curve, and these fluctuations can be attributed to the removal of the splat or removal of oxide layers which exposed the beneath surface to the counter ball.…”

Section: Wear Characteristicsmentioning

confidence: 99%

See 2 more Smart Citations

Wear and corrosion behaviour of the cryogenically treated tungsten carbide coatings

Govande

Sunil²,

Dumpala

2023

Surface Engineering

View full text Add to dashboard Cite

The WC-12Co coatings were deposited on SS 410 substrates using a high-velocity oxygen fuel (HVOF) process and the coatings were heat-treated at 750°C for 1 h in argon environment. Further, the coatings were subjected to cryogenic treatment for 1, 2, 8 and 24 h, and its influence on the reciprocating sliding wear and corrosion characteristics was studied. The structural changes in the coatings after post-treatment were assessed by X-ray diffraction analysis and Raman spectroscopy. Microhardness was improved for cryogenically treated coatings due to the α-Co transformation into ε-Co. Cryogenic treatment duration was not having a significant effect on the microhardness values. However, the specific wear rate was influenced by the cryogenic treatment duration. Also, corrosion resistance was increased with the increased cryogenic treatment duration. The protective layers consisting of WO 3 and Co 3 O 4 phases formed during the cryogenic treatment are attributed to the improved corrosion resistance of the coatings.

show abstract

Section: Structural Characterization and Microhardnesssupporting

confidence: 84%

Section: Resultsmentioning

confidence: 99%

Section: Wear Characteristicsmentioning

confidence: 99%

See 1 more Smart Citation

Wear and corrosion behaviour of the cryogenically treated tungsten carbide coatings

Govande

Sunil²,

Dumpala

2023

Surface Engineering

View full text Add to dashboard Cite

show abstract

“…Celik et al [34] studied the influence of cryogenic treatment of WC-Co end mills for machining Ti6Al4V alloy. They analysed the behaviour of coated and uncoated cryogenically treated end mills over 12 h, 24 h and 36 h, developing the experimental tests under dry condition.…”

Section: Literature Review Methodologymentioning

confidence: 99%

Sustainable Lubrication Methods for the Machining of Titanium Alloys: An Overview

et al. 2019

View full text Add to dashboard Cite

Titanium is one of the most interesting materials in modern manufacturing thanks to its good mechanical properties and light weight. These features make it very attractive for use in the aeronautical and aerospace industries. Important alloys, such as Ti6Al4V, are extensively used. Nevertheless, titanium alloys present several problems in machining processes. Their machinability is poor, affected by low thermal conductivity, which generates very high cutting temperatures and thermal gradients in the cutting tool. Lubricants and cutting fluids have traditionally been used to solve this problem. However, this option is unsustainable as such lubricants represent a risk to the environment and to the health of the operator due to their different chemical components. Therefore, novel, sustainable and green lubrication techniques are necessary. Dry machining is the most sustainable option. Nevertheless, difficult-to-machine materials like titanium alloys cannot be machined under these conditions, leading to very high cutting temperatures and excessive tool wear. This study is intended to describe, analyse and review the non-traditional lubrication techniques developed in turning, drilling and milling processes since 2015, including minimum quantity of lubricant, cryogenic lubrication, minimum quantity of cooling lubrication or high-pressure coolant. The aim is to provide a general overview of the recent advances in each technique for the main machining processes.

show abstract

“…Halim et al [13] reported that CT improves the tool life by 152% on machining of Inconel 718 and the study confirms that the chipping actions during machining were considerably reduced. Celik et al [14] affirmed that performance characteristics of deeply cryo-treated tungsten carbide inserts showed improved properties on the machining of Ti6Al4V alloy. Palanisamy et al [15], revealed that cryogenic treated WC-Co inserts show a superior Ra on the workpiece compared with the UT tool.…”

Section: Introductionmentioning

confidence: 97%

Studies on the effects of deep cryogenic treated WC–Co insert on turning of Al6063 using multi-objective optimization

Arunkarthikeyan¹,

Balamurugan²

2020

SN Appl. Sci.

View full text Add to dashboard Cite

To improve the machining performance manufacturers adopt various methods to improve the tool life which influences production cost and the degree of the surface finish. Recently cryogenic treatment is used to improve the machining performances. In the present work, the tungsten carbide-cobalt (WC-Co) cutting tool is cryogenically treated at − 196 °C for a soaking time of 24 h and tempered to 200 °C for 2 h. The machinability attributes such as Tool Wear Rate, Surface profile roughness (Ra), of the Cryo Treated (CT) cutting tool, are measured on turning operation with different parametric conditions on the Al6063 alloy and compared with an Untreated Tool (UT). The results show that the CT tool improves the tool life with an acceptable surface finish. Taguchi's coupled multi-objective optimization methods such as Grey Relational Analysis (TC-GRA) and Technique for Order Preference by Similarity to Ideal Solution (TC-TOPSIS) were actualized to enhance the turning performance of CT tool. The outcomes revealed that TC-TOPSIS acquired ideal condition is improving the exhibition than the TC-GRA. Furthermore, the interaction impact of cutting parameters is analyzed through 3D surface plots.

show abstract

Effect of cryogenic treatment on the microstructure and the wear behavior of WC-Co end mills for machining of Ti6Al4V titanium alloy

Cited by 24 publications

References 37 publications

Wear and corrosion behaviour of the cryogenically treated tungsten carbide coatings

Wear and corrosion behaviour of the cryogenically treated tungsten carbide coatings

Sustainable Lubrication Methods for the Machining of Titanium Alloys: An Overview

Studies on the effects of deep cryogenic treated WC–Co insert on turning of Al6063 using multi-objective optimization

Contact Info

Product

Resources

About