Ultra-precision turning of electroless-nickel: Effect of phosphorus contents, depth-of-cut and rake angle

Pramanik, Alokesh; Neo, K.S.; Rahman, M.; Li, X.P.; Sawa, M.; Maeda, Y.

doi:10.1016/j.jmatprotec.2008.01.006

Cited by 33 publications

(14 citation statements)

References 41 publications

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“…22 This structure leads to a good machinability and enables polishing to very low roughness values. [23][24][25] The coating is applied on all outer and interior surfaces to ensure good corrosion resistance and avoid electrochemical potential differences between NiP and AlSi40. After coating, the mirror substrate is cleaned and heat treated again to improve adhesion of the coating.…”

Section: Electroless Nickel Platingmentioning

confidence: 99%

Design, additive manufacturing, processing, and characterization of metal mirror made of aluminum silicon alloy for space applications

et al. 2019

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Metal mirrors are used for spaceborne optical systems, such as telescopes and spectrometers. In addition to the optical performance, the mechanical needs and the mass restrictions are important aspects during the design and manufacturing process. Using the additive manufacturing process, optimized internal lightweight structures are realized to reduce the weight of the system while keeping the mechanical stability. A mass reduction of ≈60.5% is achieved. Using the aluminum silicon alloy AlSi40, the thermal mismatch of the mirror base body to a necessary electroless nickel-polishing layer is minimized. Based on an exemplary mirror design, the optimization of the interior lightweight structure is described, followed by the manufacturing process from additive manufacturing to diamond turning, plating, and polishing. Finally, the results of surface metrology and light scattering measurements are presented. A final form deviation below 80 nm p: − v: and a roughness of ∼1 nm rms could be demonstrated.

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Section: Electroless Nickel Platingmentioning

confidence: 99%

Design, additive manufacturing, processing, and characterization of metal mirror made of aluminum silicon alloy for space applications

et al. 2019

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“…Zhu et al found that a large DOC results in a large material deformation and large chip volume, as well as high cutting force and normal force in the nanometric cutting of copper using diamond tools [ 9 ]. Pramanik et al found that the low DOC leads to low machined surface quality in terms of surface roughness and surface appearance due to higher cutting tool wear [ 10 ].…”

Section: Introductionmentioning

confidence: 99%

Atomistic and Experimental Investigation of the Effect of Depth of Cut on Diamond Cutting of Cerium

et al. 2018

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The ultra-precision diamond cutting process exhibits strong size effects due to the ultra-small depth of cut that is comparable with the cutting edge radius. In the present work, we elucidate the underlying machining mechanisms of single crystal cerium under diamond cutting by means of molecular dynamics simulations, with an emphasis on the evaluation of the effect of depth of cut on the cutting process by using different depths of cut. Diamond cutting experiments of cerium with different depths of cut are also conducted. In particular for the smallest depth of cut of 0.2 nm, shallow cutting simulations varying the sharpness of the cutting edge demonstrate that an atomically sharp cutting edge leads to a smaller machining force and better machined surface quality than a blunt one. Simulation results indicate that dislocation slip is the dominant deformation mechanism of cerium under diamond cutting with each depth of cut. Furthermore, the analysis of the defect zone based on atomic radial distribution functions demonstrates that there are trivial phase transformations from γ-Ce to δ-Ce occurred in both the machined surface and the formed chip. It is found that there is a transition of material removal mode from plowing to cutting with the increase of the depth of cut, which is also consistent with the diamond cutting experiments of cerium with different depths of cut.

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“…Kong et al (2006) investigated the combined influence of materials swelling and recovery on surface roughness in SPDT. Pramanik et al (2003Pramanik et al ( , 2008 reported that machining electroless-nickel (EN) with higher phosphorous content in ultra-precision machining will lead to lower surface roughness and better surface appearance.…”

Section: Introductionmentioning

confidence: 99%

Study of materials effects on the single cutting in ultra-precision raster milling

Wang

Chen

2018

IJNM

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Ultra-precision raster milling (UPRM) rotates a single crystal diamond tool to discontinuously remove materials from the workpiece and can directly produce freeform surfaces with sub-micrometric form accuracy and nanometric surface finishing. This paper presents theoretical and experimental investigations on the workpiece material effect on single cutting profile in UPRM. Experiments are conducted to study the material effect on cutting profile by single cutting four materials including copper, aluminium alloy 6061, brass and aluminium bronze under the same cutting conditions in UPRM. A characterisation method is presented in the paper to study the effect of different workpiece material on the cutting profiles in UPRM. The experimental results

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Ultra-precision turning of electroless-nickel: Effect of phosphorus contents, depth-of-cut and rake angle

Cited by 33 publications

References 41 publications

Design, additive manufacturing, processing, and characterization of metal mirror made of aluminum silicon alloy for space applications

Design, additive manufacturing, processing, and characterization of metal mirror made of aluminum silicon alloy for space applications

Atomistic and Experimental Investigation of the Effect of Depth of Cut on Diamond Cutting of Cerium

Study of materials effects on the single cutting in ultra-precision raster milling

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