A comparison of flood cooling, minimum quantity lubrication and high pressure coolant on machining and surface integrity of titanium Ti-5553 alloy

Kaynak, Yusuf; Gharibi, Armin; Yılmaz, Umit; Köklü, Uğur; Aslantaş, Kubilay

doi:10.1016/j.jmapro.2018.06.003

Cited by 69 publications

(19 citation statements)

References 21 publications

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“…All machined surfaces showed the broadening of the peak width as well as the peak shifting to a lower angle compared to the as-received material as illustrated in Figure 8. The finding was consistent with the findings of past studies by Kaynak et al [45] that cryogenic machining generates broadening peaks. The broadening of the peaks is due to the plastic deformation and formation of dislocations density produced by cutting processes caused by micro strain and crystal lattice distortions [46,47].…”

Section: Resultssupporting

confidence: 93%

Cryogenic milling and formation of nanostructured machined surface of AISI 4340

Muhamad

Ghani

Haron

et al. 2020

Nanotechnology Reviews

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Hardened layers are commonly required for automotive components after their production using a machining process in order to enhance the service life of these components. This study investigates the possibility of producing a nanostructured machined surface which can increase the hardness of the machined surface by varying the machining parameters under cryogenic conditions in end milling of AISI 4340. The end milling experiments were performed using multi-layered TiAlN- and AlCrN-coated carbide. Prior to the experiment, a finite element method (FEM) was used to simulate the cutting temperature generated and it had been found that at cutting speed of 200–300 m/min, feed rate of 0.15–0.3 mm/tooth, axial depth of cut of 0.3–0.5 mm, and radial depth of cut of 0.2–0.35 mm, the temperature generated can be sufficiently high to cause austenitic transformation. A field emission scanning electron microscope (FESEM) equipped with angle selective backscattered (AsB) detection analysis was used to investigate the microstructure and machined-affected layers of the machined surfaces. The crystallographic orientation/phase change and nano-hardness were analysed through X-ray diffraction (XRD) and a nano-hardness testing machine. The results showed that the cryogenic machining had significantly affected the surface integrity characteristics of the AISI 4340 alloy due to refined microstructure, favourable phase structure, and higher hardness near the surface layer. The results of this study may be useful in providing an insight into a potential technological shift from conventional surface case hardening processes to the present technique.

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Section: Resultssupporting

confidence: 93%

Cryogenic milling and formation of nanostructured machined surface of AISI 4340

Muhamad

Ghani

Haron

et al. 2020

Nanotechnology Reviews

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“…The figure demonstrates that the cutting speed and the feed rate both exhibited a linear trend with respect to surface roughness. In the case of  s , generally, larger values of  s are expected to produce a smooth surface finish [27][28]. This can be attributed to the fact that during the machining of this high strength alloy at high cutting speeds, a large amount of heat is generated.…”

Section: Resultsmentioning

confidence: 99%

Environmentally conscious machining of Inconel 718: surface roughness, tool wear, and material removal rate assessment

Zahoor

Ameen

Abdul‐Kader

et al. 2019

Int J Adv Manuf Technol

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Flood cooling is a typical strategy used in the machining of difficult-to-cut materials where high temperatures are produced. Several environmental and health concerns are associated with the cutting fluids employed during this technique. Vegetable oil-based fluids appear to be the best substitute to conventional mineral/synthetic oils due to their environmentally friendly, biodegradable, renewable, and less toxic properties. Therefore, this paper attempts to establish an environmentally conscious, flood-cooling alternative through replacing conventional fluids with a synthetic vegetable ester-based (Mecagreen 450) biodegradable oil to investigate the machinability aspects of Inconel 718. In addition to the cooling environment, cutting speed ( s), feed per tooth (ƒ z), and axial depth of cut (a p) have been used as control variables. A Taguchi L 9 array has been selected for the design of experiments (DOE). Parametric effects and microscopic analyses have been carried out to investigate the three response parameters, i.e., surface roughness (R a), tool wear, and material removal rate (MRR). Tool wear analysis is further supplemented with scanning electron microscopy (SEM) and energy-dispersive spectroscopy (EDS).

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“…The greatest tool life is achieved by high-pressure coolant supply, and cryogenic cooling achieves the second greatest tool life. MQL is inefficient for improving the machining performance of this alloy [45,46]. Fig.…”

Section: High-pressure Coolingmentioning

confidence: 99%

Review of new developments in machining of aerospace materials

Jemielniak¹

2021

Journal of Machine Engineering

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The paper presents an update of the recent literature on advances in machining of difficult to machine materials such as nickel and titanium-based alloys, and composites used in aeroengine and aerostructure applications. The review covers the following issues: advances in high-performance cooling techniques as cryogenic machining, minimum quantity lubrication, the combination of MQL and cryogenic cooling, and high-pressure lubricoolant supply and hybrid cutting processesvibration assisted machining (both low and high frequency), laser, plasma and EDM assisted machining. Examples of applications in industrial processes are also given.

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A comparison of flood cooling, minimum quantity lubrication and high pressure coolant on machining and surface integrity of titanium Ti-5553 alloy

Cited by 69 publications

References 21 publications

Cryogenic milling and formation of nanostructured machined surface of AISI 4340

Cryogenic milling and formation of nanostructured machined surface of AISI 4340

Environmentally conscious machining of Inconel 718: surface roughness, tool wear, and material removal rate assessment

Review of new developments in machining of aerospace materials

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