Comparison of Ti6Al4V machining forces and tool life for cryogenic versus conventional cooling

Strano, Matteo; Chiappini, Elio; Tirelli, Stefano; Albertelli, Paolo; Monno, Michele

doi:10.1177/0954405413486635

Cited by 48 publications

(32 citation statements)

References 18 publications

(2 reference statements)

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“…Furthermore, they noticed that cryogenic cooling improves dynamic recrystallisation and prevents grain growth within the material whilst increasing the surface and subsurface microhardness of the machined material. Strano et al (2013) empirically studied the effects of cryogenic cooling on cutting forces and tool wear in CNC turning of Ti-6Al-4V using a multilayer TiAlN-AlCrO coated tungsten carbide tool. They (Strano et al, 2013) reported that cryogenic cooling reduced the growth rate of flank wear resulting in 38.8% increased tool life as compared to flood cooling.…”

Section: Introductionmentioning

confidence: 99%

“…Strano et al (2013) empirically studied the effects of cryogenic cooling on cutting forces and tool wear in CNC turning of Ti-6Al-4V using a multilayer TiAlN-AlCrO coated tungsten carbide tool. They (Strano et al, 2013) reported that cryogenic cooling reduced the growth rate of flank wear resulting in 38.8% increased tool life as compared to flood cooling. Furthermore, the study revealed that cryogenic cooling reduced various components of cutting forces by 4% to11% in comparison with flood cooling.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Comparative investigation on using cryogenic machining in CNC milling ofTi-6Al-4Vtitanium alloy

Shokrani

Dhokia

Newman

2016

Machining Science and Technology

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Ti-6Al-4V titanium alloy is one of the most important materials in industry, 80% of which is used in aerospace industry. Titanium alloys are also notoriously difficult-to-machine materials owing to their unique material properties imposing a major bottleneck in manufacturing systems. Cryogenic cooling has been acknowledged as an alternative technique in machining to improve the machinability of different materials. Although milling is considered to be the major machining operation for the manufacture of titanium components in aerospace industries, studies in cryogenic machining of titanium alloys are predominantly concentrated on turning operations. To address this gap, this article provides an investigation on the viability of cryogenic cooling in CNC end-milling of aerospace-grade Ti-6Al-4V alloy using liquid nitrogen in comparison with traditional machining environments. A series of machining experiments were conducted and surface roughness, tool life, power consumption, and specific machining energy were investigated for cryogenic milling as opposed to conventional dry and flood cooling. Analysis revealed that cryogenic machining using liquid nitrogen has the potential to significantly improve the machinability of Ti-6Al-4V alloy in CNC end-milling using solid carbide cutting tools and result in a paradigm shift in machining of titanium products. The analysis demonstrated that cryogenic cooling has resulted in almost three times increased tool life and the surface roughness was reduced by 40% in comparison with flood cooling.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Comparative investigation on using cryogenic machining in CNC milling ofTi-6Al-4Vtitanium alloy

Shokrani

Dhokia

Newman

2016

Machining Science and Technology

View full text Add to dashboard Cite

show abstract

“…The flow rate reduction in this study was enabled through the evolution in the delivery line design. [23] Matteo Strano et al [25] has confirmed in his research that cryogenic machining is able to increase the tool life, even with respect to wet cutting. Besides, the results showed that not only cutting forces are reduced but also a small, albeit significant, reduction can be achieved in the coefficient of friction at the tool-workpiece interface.…”

Section: Novel Machining Techniquesmentioning

confidence: 91%

A Comprehensive Review on Machining of Ti6al4v

2017

IJAERD

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“…Better Ra with coolant is because coolant also serves as a lubricant between sliding surfaces (Dhar and Kamruzzaman, 2007). Another fact is the substantial alteration of coefficient of friction at the tool-work interface in the presence of a coolant (Strano et al, 2013). The aggravated tool wear under dry (no-coolant/lubricant) condition also increases the Ra and counteracts against the thermal softening gain.…”

Section: Effects On Surface Roughnessmentioning

confidence: 99%

Statistical analysis of energy consumption, tool wear and surface roughness in machining of Titanium alloy (Ti-6Al-4V) under dry, wet and cryogenic conditions

et al. 2019

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Abstract. Productivity and economy are key elements of any sustainable manufacturing system. While productivity is associated to quantity and quality, economy focuses on energy efficient processes achieving an overall high output to input ratio. Machining of hard-to-cut materials has always posed a challenge due to increased tool wear and energy loss. Cryogenics have emerged as an effective means to improve sustainability in the recent past. In the present research the use of cooling conditions has been investigated as an input variable to analyze its effect on tool wear, specific cutting energy and surface roughness in combination with other input machining parameters of feed rate, cutting speed and depth of cut. Experimental design was based on Taguchi design of experiment. Analysis of Variance (ANOVA) was carried out to ascertain the contribution ratio of each input. Results showed the positive effect of coolant usage, particularly cryogenic, on process responses. Tool wear was improved by 33 % whereas specific cutting energy and surface roughness were improved by 10 % and 9 % respectively by adapting the optimum machining conditions.

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Comparison of Ti6Al4V machining forces and tool life for cryogenic versus conventional cooling

Cited by 48 publications

References 18 publications

Comparative investigation on using cryogenic machining in CNC milling ofTi-6Al-4Vtitanium alloy

Comparative investigation on using cryogenic machining in CNC milling ofTi-6Al-4Vtitanium alloy

A Comprehensive Review on Machining of Ti6al4v

Statistical analysis of energy consumption, tool wear and surface roughness in machining of Titanium alloy (Ti-6Al-4V) under dry, wet and cryogenic conditions

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