Combination of high feed turning with cryogenic cooling on Haynes 263 and Inconel 718 superalloys

Amigo, Francisco Javier; Urbikaín, Gorka; Pereira, Octavio; Fernández-Lucio, P.; Fernández-Valdivielso, A.; Lacalle, Luís Norberto López de

doi:10.1016/j.jmapro.2020.08.029

Cited by 52 publications

(23 citation statements)

References 26 publications

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“…The calculated HTC can be plotted as a function of time, the tangential position (defined in Figure 5) and the surface temperature. The experiment and the IHCP are detailed in [9,10,15] respectively. row of the solid jet nozzles at the top; the solid jets reaching five vanes; the reflected flat fans exiting from vanes impinging onto the roll surface near the rolling gap.…”

Section: Cooling Efficiencymentioning

confidence: 99%

“…In principle, the proposed method can be employed in other technological processes as well. E.g., in machining namely turning of heat resistant superalloys requires intensive cooling [10]. Although the mainstream of recent developments is towards the use of the CO 2 cryogenic cooling, a window remains for appropriate intensive spray cooling.…”

Section: Introductionmentioning

confidence: 99%

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Remote Cooling of Rolls in Hot Rolling; Applicability to Other Processes

Boháček

Raudenský

Kotrbáček

2021

Metals

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A novel method of cooling rolls in hot rolling is proposed. This method uses a combination of solid jet nozzles and specially shaped deflecting vanes. The vanes transform the incoming cylindrical water jet into a flat fan. Thereby, the coolant can be directed into hardly accessible locations whilst maintaining the optimal angle of impingement. The vanes allow for effectively cooling the roll surface near the rolling gap, which is otherwise not possible with classical flat fan nozzles. The jet impact is tangential due to the limited room for nozzle mounts or a coolant supply. The developed method was laboratory tested. A similar cooling efficiency was found between the vane and the flat fan nozzle. The latter was however mounted in a position impossible in the plant. The potential of the proposed cooling is, therefore, eminent. Apart from hot rolling, it could be exploited in other technological processes such as high pressure die casting, machining, turning, hot stamping, etc.

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Section: Cooling Efficiencymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Remote Cooling of Rolls in Hot Rolling; Applicability to Other Processes

Boháček

Raudenský

Kotrbáček

2021

Metals

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“…Finally, various authors have proposed alternative cooling methods in machining, with CO 2 cryogenics being the most promising one because of its low cost and maximum cooling action. Amigo et al [ 19 ] obtained good results in hard turning. Other authors such as Suárez et al [ 20 ] proposed the use of high pressure with emulsions coolants instead of conventional pressure values.…”

Section: Introductionmentioning

confidence: 99%

Tool Wear Effect on Surface Integrity in AISI 1045 Steel Dry Turning

et al. 2022

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In the present work, the surface integrity and flank wear of uncoated cermet inserts in dry turning of AISI 1045 steel were evaluated. Three-dimensional techniques were used to assess the surface roughness. Previously, finite element analysis was carried out to predict the cutting forces and heat distribution in the chip formation region. Cutting speed and feed were the parameters varied in the experiments. Feed is decisive in the final quality of the turned surface and cutting speed had little influence on this aspect. The surface was significantly damaged with the progression of the insert flank wear. Considering an average flank wear VBB of 0.1 mm, a tool life of 35 min was achieved using a cutting speed of 175 m/min, and of 23 min for a cutting speed of 275 m/min. Abrasive wear was predominant during the experiments. No microstructure defects were observed, as well as crack propagation or accentuated deformations near the machined surface region. Therefore, the dry turning of 1045 steel with cermet inserts route has proven extremely viable from the standpoints of tool life, surface integrity, chip formation, and sustainability.

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“…Therefore, productivity in the machining of heat-resistant alloys was increased, but with a higher environmental impact. The use of cryogenic with minimum quantity of lubricant in the machining of nickel-based alloys can be presented as a feasible replacement for wet machining in terms of the lower environmental impact [26,27].…”

Section: Introductionmentioning

confidence: 99%

Roughing Milling with Ceramic Tools in Comparison with Sintered Carbide on Nickel-Based Alloys

et al. 2021

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Productivity in the manufacture of aircrafts components, especially engine components, must increase along with more sustainable conditions. Regarding machining, a solution is proposed to increase the cutting speed, but engines are made with very difficult-to-cut alloys. In this work, a comparison between two cutting tool materials, namely (a) cemented carbide and (b) SiAlON ceramics, for milling rough operations in Inconel® 718 in aged condition was carried out. Furthermore, both the influence of coatings in cemented carbide milling tools and the cutting speed in the ceramic tools were analysed. All tools were tested until the end of their useful life. The cost performance ratio was used to compare the productivity of the tested tools. Despite the results showing higher durability of the coated carbide tool, the ceramic tools presented a better behavior in terms of productivity at higher speed. Therefore, ceramic tools should be used for higher productivity demands, while coated carbide tools for low speed-high volume material removal.

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Combination of high feed turning with cryogenic cooling on Haynes 263 and Inconel 718 superalloys

Cited by 52 publications

References 26 publications

Remote Cooling of Rolls in Hot Rolling; Applicability to Other Processes

Remote Cooling of Rolls in Hot Rolling; Applicability to Other Processes

Tool Wear Effect on Surface Integrity in AISI 1045 Steel Dry Turning

Roughing Milling with Ceramic Tools in Comparison with Sintered Carbide on Nickel-Based Alloys

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