Effect of tool geometry and cutting parameters on surface quality and chip morphology of amorphous electroless nickel-phosphorus alloy in ultra-precision turning

Bao, Xiaoyu; Yao, Peng; Xu, Jimiao; Mei, Zhiwu; Li, Yueming; Yang, Jian; Wang, Qingwei; Chen, Zhe; Qu, Shuoshuo; Huang, Chuanzhen

doi:10.1007/s00170-023-11183-w

Cited by 6 publications

(2 citation statements)

References 26 publications

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“…The results show that the oil concentration content of the flood cooling has no significant effect on the surface rough ness. The surface roughness is mainly influenced by the different cooling-lubricating pro cesses, process parameters, and tool geometry [1,61]. If surface modification or better sur face roughness is required, it can be achieved with unconventional technologies such a Electrical Discharge Machining (EDM) [62].…”

Section: Surface Roughnessmentioning

confidence: 99%

Effects of Oil Concentration in Flood Cooling on Cutting Force, Tool Wear and Surface Roughness in GTD-111 Nickel-Based Superalloy Slot Milling

Kónya,

Kovács

2024

JMMP

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Cooling–lubricating processes have a big impact on cutting force, tool wear, and the quality of the machined surface, especially for hard-to-machine superalloys, so the choice of the right cooling–lubricating method is of great importance. Nickel-based superalloys are among the most difficult materials to machine due to their high hot strength, work hardening, and extremely low thermal conductivity. Previous research has shown that flood cooling results in the least tool wear and cutting force among different cooling–lubricating methods. Thus, the effects of the flood oil concentration (3%; 6%; 9%; 12%; and 15%) on the above-mentioned factors were investigated during the slot milling of the GTD-111 nickel-based superalloy. The cutting force was measured during machining with a Kistler three-component dynamometer, and then after cutting the tool wear and the surface roughness on the bottom surface of the milled slots were measured with a confocal microscope and tactile roughness tester. The results show that at a 12% oil concentration, the tool load and tool wear are the lowest; even at an oil concentration of 15%, a slight increase is observed in both factors. Essentially, a higher oil concentration reduces friction between the tool and the workpiece contact surface, resulting in reduced tool wear and cutting force. Furthermore, due to less friction, the heat generation in the cutting zone is also reduced, resulting in a lower heat load on the tool, which increases tool life. It is interesting to note that the 6% oil concentration had the highest cutting force and tool wear, and strong vibration was heard during machining, which is also reflected in the force signal. The change in oil concentration did not effect the surface roughness.

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Section: Surface Roughnessmentioning

confidence: 99%

Effects of Oil Concentration in Flood Cooling on Cutting Force, Tool Wear and Surface Roughness in GTD-111 Nickel-Based Superalloy Slot Milling

Kónya,

Kovács

2024

JMMP

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“…Here, the phosphorus content, heat treatment and geometry of the coating can affect ultra-precision processes [21]. Bao et al underline the fact that the complex chipping process of diamond in NiP is not fully understood today [22].…”

Section: Introductionmentioning

confidence: 99%

Precision of diamond turning sinusoidal structures as measurement standards used to assess topography fidelity

Hüser,

Meeß,

Dai

et al. 2024

Surf. Topogr.: Metrol. Prop.

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In optical surface metrology, it is crucial to assess the fidelity of the topography measuring signals. One parameter to quantify this is the \textsl{small-scale fidelity limit} $T_\mathrm{FIL}$ defined in ISO 25178-600:2019. To determine this parameter, sinusoidal structures are generated, where the wavelengths are modulated according to a discrete chirp series.The objects are produced by means of ultra-precision diamond face turning. Planar areas and regions with slopes below $4^\circ$ could be produced with form deviations of $\lesssim 10 \, \mathrm{n m}$.An initial estimate of the cutting tool's nose radius resulted in adeviation that caused the ridges of the structures to be too narrow by approximately $150 \, \mathrm{n m}$, while the trenches were too wide.At the bottom of narrow trenches, deviations are observed in the form of elevations with heights of about $20$ to $100 \, \mathrm{n m}$.The measurement standard investigated in this study has also been used to characterise optical instruments in a round-robin test within the European project TracOptic, which requires precise knowledge of the geometry of all structures. The geometry of the topography, cosine structures superimposed with form deviations, was measured using the Met.\ LR-AFM metrological long-range atomic force microscope of the German National Metrology Institute.

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In situ laser-assisted diamond turning of Ni-P alloy coating on mold core surface

Shi,

Yu,

et al. 2024

Int J Adv Manuf Technol

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Effect of tool geometry and cutting parameters on surface quality and chip morphology of amorphous electroless nickel-phosphorus alloy in ultra-precision turning

Cited by 6 publications

References 26 publications

Effects of Oil Concentration in Flood Cooling on Cutting Force, Tool Wear and Surface Roughness in GTD-111 Nickel-Based Superalloy Slot Milling

Effects of Oil Concentration in Flood Cooling on Cutting Force, Tool Wear and Surface Roughness in GTD-111 Nickel-Based Superalloy Slot Milling

Precision of diamond turning sinusoidal structures as measurement standards used to assess topography fidelity

In situ laser-assisted diamond turning of Ni-P alloy coating on mold core surface

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