Sustainable manufacturing of ultra-precision machining of titanium alloys using a magnetic field and its sustainability assessment

Yip, Wai Sze; To, Suet

doi:10.1016/j.susmat.2018.04.002

Cited by 25 publications

(17 citation statements)

References 49 publications

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“…It has a strong comprehensive performance, known as the "flagship alloy" of the titanium alloy industry, and many other titanium alloys can be regarded as its modified [7]. However, TC4 alloy has been recognized as one of the most difficult-to-machine materials [8]. Its low thermal conductivity and high processing cost have been the bottleneck of its development [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

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Effect of bonding temperature and holding time on properties of hollow structure diffusion bonded joints of TC4 alloy

2020

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The hollow structure commonly used in aerospace field is generally formed by the SPF/DB, but its disadvantages lead to surface groove and complex internal structure difficult to form. In this paper, the method of milling combined with diffusion bonding is used to improve the defect. Diffusion bonding of TC4 titanium alloy hollow structure was carried out at temperature ranging from 800 °C to 900 °C for 10 ~ 30 min. The interfacial bonding ratio, deformation ratio, microstructures, microhardness and mechanical properties of the diffusion bonded joints were investigated. The results show that joints with high bonding quality can be obtained when bonded at 850 °C and 900 °C for 20 ~ 30 min. The joint bonding ratio is more than 92%, the tensile strength is 952 MPa, and the deformation ratio is maintained at about 10%. The microhardness of the TC4 alloy hollow structural joint increases with the increase in bonding temperature, showing a trend of "high in the middle and low on both sides", and it has a peak value (HV472) when bonding time is prolonged up to 30 min. The findings indicate that qualified workpiece can be obtained by the process.

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Section: Introductionmentioning

confidence: 99%

“…Its low thermal conductivity and high processing cost have been the bottleneck of its development [9][10][11]. Therefore, the new technology to solve the problem of titanium alloy processing has become the focus of researches [8]. Diffusion bonding (DB) is a solid-phase joining technique with few defects and high precision [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Effect of bonding temperature and holding time on properties of hollow structure diffusion bonded joints of TC4 alloy

2020

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“…Apart from the electro-pulse treatment, Yip and To [43,87] in different studies showed that using magnetic field generated eddy current damping effect or intermittent cutting enhanced surface finish of Ti-6Al-4V and the material removal rate. The intermittent cutting was achieved by pre-cutting microgrooves on the Ti-6Al-4V alloy prior to SPDT.…”

Section: Electro-pulse Treatment and Intermittent Cuttingmentioning

confidence: 99%

An overview of conventional and non-conventional techniques for machining of titanium alloys

et al. 2020

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Machining is one of the major contributors to the high cost of titanium-based components. This is as a result of severe tool wear and high volume of waste generated from the workpiece. Research efforts seeking to reduce the cost of titanium alloys have explored the possibility of either eliminating machining as a processing step or optimising parameters for machining titanium alloys. Since the former is still at the infant stage, this article provides a review on the common machining techniques that were used for processing titanium-based components. These techniques are classified into two major categories based on the type of contact between the titanium workpiece and the tool. The two categories were dubbed conventional and non-conventional machining techniques. Most of the parameters that are associated with these techniques and their corresponding machinability indicators were presented. The common machinability indicators that are covered in this review include surface roughness, cutting forces, tool wear rate, chip formation and material removal rate. However, surface roughness, tool wear rate and metal removal rate were emphasised. The critical or optimum combination of parameters for achieving improved machinability was also highlighted. Some recommendations on future research directions are made.

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“…In further developments, citing the environmental concerns of using huge quantities of cutting fluids in machining, especially high value and tough to machine elements such as titanium, [103] suggested the use of magnetic fields to dampen the vibrations caused during machining as an alternative to the competing minimum quantity lubrication (MQL) and dry cutting methods. Two-phase titanium alloys were used as the sample workpiece, and the devised machining process was tested using single-point diamond turning process.…”

Section: Effects Of Magnetic Treatmentmentioning

confidence: 99%

A review of magnetic-assisted machining processes

Peruri

Chaganti

2019

J Braz. Soc. Mech. Sci. Eng.

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There has been an increasing interest in the penetration of magnetic field-assisted machining processes in the industries. Due to the ease of contactless forces, magnetic fields have proved extremely versatile and relatively low cost when considering the potential increase in productivity of existing machining processes that it can provide. In this overview, we review the recent achievements and developments in magnetic field-assisted machining processes and their applications. A wide variety of machining domains are examined including electro-discharge machining (EDM), micro-EDM, electrochemical machining, magnetic-assisted machining and many more. The advantages and limitations of each implementation and potential future research pathways are also discussed.

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Sustainable manufacturing of ultra-precision machining of titanium alloys using a magnetic field and its sustainability assessment

Cited by 25 publications

References 49 publications

Effect of bonding temperature and holding time on properties of hollow structure diffusion bonded joints of TC4 alloy

Effect of bonding temperature and holding time on properties of hollow structure diffusion bonded joints of TC4 alloy

An overview of conventional and non-conventional techniques for machining of titanium alloys

A review of magnetic-assisted machining processes

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