Investigation of Cooling and Lubrication Strategies for Machining High-temperature Alloys

Busch, Katja; Hochmuth, C.; Pause, Bernhard; Stoll, Andrea; Wertheim, R.

doi:10.1016/j.procir.2015.10.005

Cited by 75 publications

(41 citation statements)

References 2 publications

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“…It was found that HPC was immensely helpful to extend tool life and improve chip breaking [31]. However, the high cost of pumping systems and equipment for micro-particle filtering (i.e., <20 µm) are the main disadvantages [30,32]. Minimum quantity lubrication (MQL), compressed air, oil mist and cryogenic cooling were also considered as alternative cooling supply techniques to reduce the amount of cutting fluid delivered.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of a Novel Controlled Cutting Fluid Impinging Supply System When Machining Titanium Alloys

2017

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Abstract:Following a comprehensive review on titanium machining and methods of cutting fluid application, this paper presents a new Controlled cutting fluid impinging supply system (Cut-list) developed to deliver an accurate amount of cutting fluid into the machining zone via well-positioned coherent nozzles based on the calculation of the heat generated. The performance of the new system was evaluated against a conventional flood cutting fluid supply system during step shoulder milling of Ti-6Al-4V using vegetable oil-based cutting fluid. The comparison was performed at different cutting speeds and feed rates. Comparison measures/indicators were cutting force, workpiece temperature, tool flank wear, burr formation and average surface roughness (Ra). The new system provided significant reductions in cutting fluid consumption of up to 42%. Additionally, reductions in cutting force, tool flank wear and burr height of 16.41%, 46.77%, and 31.70% were recorded, respectively. Smaller Ra values were also found with the use of the new system.

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Section: Introductionmentioning

confidence: 99%

Evaluation of a Novel Controlled Cutting Fluid Impinging Supply System When Machining Titanium Alloys

2017

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“…If the amount of LCO 2 is sufficient, the micro-region is cooled down to the boiling point of CO 2 , À78.5 C (194.65 K). Therefore, the total heat capability of LCO 2 can be determined similarly as for LN 2 [1,2,11]. However, it must be noted that not all of the latent heat generated due to the phase transformation of LN 2 or LCO 2 is used to cool the cutting zone.…”

Section: Heat-evacuation Mechanismsmentioning

confidence: 99%

Cooling capability of liquid nitrogen and carbon dioxide in cryogenic milling

et al. 2019

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“…However, this process allows only lower cutting speeds for Inconel 718. To increase the productivity and quality of the machine product, different alternative methods such as minimum quantity lubrication, high‐pressure jet–assisted machining (HPJAM), cryogenic machining, and hybrid machining have been developed …”

Section: Introductionmentioning

confidence: 99%

“…Direction of injection in high‐pressure jet–assisted machining (HPJAM) [Colour figure can be viewed at wileyonlinelibrary.com]…”

Section: Introductionmentioning

confidence: 99%

“…To increase the productivity and quality of the machine product, different alternative methods such as minimum quantity lubrication, high-pressure jet-assisted machining (HPJAM), cryogenic machining, and hybrid machining have been developed. 4,5 Spreading of flood coolant over the entire tool-workpiece and tool-chip interfaces is a traditional method, which improves the surface integrity under higher cutting speeds. Under conventional or flood cooling conditions, the coolant is unable to readily reach the tool-workpiece and tool-chip interfaces, which are under a bubble barrier effect.…”

Section: Introductionmentioning

confidence: 99%

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Influences of cutting fluid conditions and cutting parameters on surface integrity of Inconel 718 under high‐pressure jet–assisted machining (HPJAM)

Mohsan

Wang

Ren

et al. 2018

Lubrication Science

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Cutting fluids are widely used in machining processes for cooling and lubricating the tool and workpiece interface to enhance machinability. However, the generation of machined surface under cutting fluid conditions is more complex than that under dry cutting conditions. In this study, orthogonal turning of the difficult‐to‐machine Inconel 718 alloy is conducted under dry and high‐pressure jet–assisted machining, respectively. The machining parameters and coolant conditions are investigated to optimise the surface integrity. Machining forces, microhardness, profile, and areal surface topography are analysed. Results show that a higher cutting speed of 140 m/min and a coolant pressure of 150 to 200 bar are the optimums to produce a satisfactory machined surface. High‐pressure coolant in cutting processes can lower the formation of surface deformities, improve surface integrity, and increase productivity. At a higher cutting speed and optimum coolant pressure, cutting forces are decreased, and the surface hardness as well as depth of the machining‐affected zone is depleted.

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Investigation of Cooling and Lubrication Strategies for Machining High-temperature Alloys

Cited by 75 publications

References 2 publications

Evaluation of a Novel Controlled Cutting Fluid Impinging Supply System When Machining Titanium Alloys

Evaluation of a Novel Controlled Cutting Fluid Impinging Supply System When Machining Titanium Alloys

Cooling capability of liquid nitrogen and carbon dioxide in cryogenic milling

Influences of cutting fluid conditions and cutting parameters on surface integrity of Inconel 718 under high‐pressure jet–assisted machining (HPJAM)

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