Results 11 to 20 of about 1,412 (158)

High-Efficiency Chemical-Mechanical Magnetorheological Finishing for Ultra-Smooth Single-Crystal Silicon

open access: yesNanomaterials, 2023
To improve the material removal efficiency and surface quality of single-crystal silicon after magnetorheological finishing, a novel green chemical-mechanical magnetorheological finishing (CMMRF) fluid was developed.
Zhifan Lin   +4 more
doaj   +1 more source

Surface quality improvement for 316L additive manufactured prototype based on magnetorheological polishing [PDF]

open access: yesMechanical Sciences, 2023
Additive manufacturing has attracted increasing attention in recent years due to its flexibility and near-net shaping advantages. Although recent advancements in metal additive manufacturing accuracy have met the post-processing requirement for ...
N. She   +5 more
doaj   +1 more source

Investigation of Process Parameters of a Novel Magnetorheological Finishing Process for External Cylindrical Surfaces

open access: yesU.Porto Journal of Engineering, 2023
The recent rise in the demand for high precision, close tolerances, and super surface finish quality of components and part assembly modules in the competitive manufacturing industrial environment for the enhanced working life and functional requirements
Gagandeep Singh, Arvind Jayant
doaj   +1 more source

Optimization of Abrasive Flow Nano-Finishing Processes by Adopting Artificial Viral Intelligence

open access: yesJournal of Manufacturing and Materials Processing, 2021
This work deals with the optimization of crucial process parameters related to the abrasive flow machining applications at micro/nano-levels. The optimal combination of abrasive flow machining parameters for nano-finishing has been determined by applying
Nikolaos A. Fountas   +1 more
doaj   +1 more source

Magnetorheological Finishing of Chemically Treated Electroless Nickel Plating

open access: yesMagnetochemistry, 2022
Electroless nickel plating with a nanofinished surface is used in space mirrors, automobile parts, aircraft components, optical instruments, and electronic equipment. Finishing of these components using conventional finishing techniques is limited due to
Mayank Kumar   +3 more
doaj   +1 more source

Nano-Precision Processing of NiP Coating by Magnetorheological Finishing

open access: yesNanomaterials, 2023
NiP coating has excellent physicochemical properties and is one of the best materials for coating optical components. When processing NiP coatings on optical components, single-point diamond turning (SPDT) is generally adopted as the first process ...
Chao Xu   +6 more
doaj   +1 more source

Generalized large optics fabrication multiplexing

open access: yesJournal of the European Optical Society-Rapid Publications, 2022
High precision astronomical optics are manufactured through deterministic computer controlled optical surfacing processes, such as subaperture small tool polishing, magnetorheological finishing, bonnet tool polishing, and ion beam figuring.
Kim Daewook   +7 more
doaj   +1 more source

Reactive Atom Plasma (RAP) figuring machine for meter class optical surfaces [PDF]

open access: yes, 2013
A new surface figuring machine called Helios 1200 is presented in this paper. It is designed for the figuring of meter sized optical surfaces with form accuracy correction capability better than 20 nm rms within a reduced number of iterations.
Castelli, Marco   +4 more
core   +1 more source

A novel approach of magnetorheological abrasive fluid finishing with swirling-assisted inlet flow

open access: yesResults in Physics, 2016
Abrasive flow machining has been the pioneer of new finishing processes. Rotating workpiece and imposing a magnetic field using magnetorheological working medium are some assisting manipulations to improve surface finishing, because they can increase the
Saeid Kheradmand   +2 more
doaj   +1 more source

Fast figuring of large optics by reactive atom plasma [PDF]

open access: yes, 2012
The next generation of ground-based astronomical observatories will require fabrication and maintenance of extremely large segmented mirrors tens of meters in diameter.
Castelli, Marco   +3 more
core   +1 more source

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