Results 11 to 20 of about 23,411 (311)

A Theoretical and Experimental Identification with Featured Structures for Crucial Position-Independent Geometric Errors in Ultra-Precision Machining

open access: yesMachines, 2023
In ultra-precision machining (UPM), position-independent geometric errors (PIGEs), i.e., squareness errors, have a crucial impact upon the form accuracy of a machined surface.
Li Zhang, Shaojian Zhang
doaj   +1 more source

Experimental Investigation on the Effect of Surface Shape and Orientation in Magnetic Field Assisted Mass Polishing

open access: yesMicromachines, 2022
Magnetic field assisted finishing (MFAF) technology has been widely used in industries such as aerospace, biomedical, and the optical field for both external and internal surface finishing due to its high conformability to complex surfaces and nanometric
Yee-Man Loh   +3 more
doaj   +1 more source

Improving the machinability of the high-entropy alloy CoCrFeMnNi by in-situ laser-assisted diamond turning

open access: yesJournal of Materials Research and Technology, 2023
High-entropy alloys, as the novel multi-principal alloys composed of five or more elements in equal-atomic ratios or near-equal atomic ratios, are widespread in extreme environments, including high-temperature, high-dynamic loading, and high-irradiation.
Hanheng Du   +6 more
doaj   +1 more source

Design of a five-axis ultra-precision micro-milling machine—UltraMill. Part 1: Holistic design approach, design considerations and specifications [PDF]

open access: yes, 2009
High-accuracy three-dimensional miniature components and microstructures are increasingly in demand in the sector of electro-optics, automotive, biotechnology, aerospace and information-technology industries.
B Denkena   +25 more
core   +1 more source

Realization of High Efficiency and Low Damage Machining of Anisotropic KDP Crystal by Grinding [PDF]

open access: yes, 2019
Potassium dihydrogen phosphate (KDP) is a non-linear material used in various opto-electronic applications including Q-switches, high-speed photography shutters, frequency harmonic generation lens and Pockels cells in the Inertial Confinement Fusion (ICF)
Cai, Rui   +4 more
core   +1 more source

Optimization experiment on eccentric lapping of cylindrical rollers

open access: yesNanotechnology and Precision Engineering, 2018
Cylindrical rollers are important elements of bearings, and their machining accuracy and consistency affect the bearing quality. Using a GCr15 cylindrical roller of Ф11 × 12 as the processing object in this study, the effects of loading pressure ...
Jia Su   +3 more
doaj   +1 more source

Post processing of additively manufactured 316L stainless steel by multi-jet polishing method

open access: yesJournal of Materials Research and Technology, 2023
Post-process finishing of the additively manufactured (AMed) surfaces is still a critical issue, especially for the AMed surfaces with complex surface geometry, which largely limits the application of additive manufacturing.
Chunjin Wang   +5 more
doaj   +1 more source

Experimental investigation on micromilling of oxygen-free, high-conductivity copper using tungsten carbide, chemistry vapour deposition and single-crystal diamond micro tools [PDF]

open access: yes, 2010
Insufficient experimental data from various micro tools limit industrial application of the micromilling process. This paper presents an experimental comparative investigation into micromilling of oxygen-free, high-conductivity copper using tungsten ...
Cheng, K, Huo, D
core   +1 more source

A dynamics-driven approach to precision machines design for micro-manufacturing and its implementation perspectives [PDF]

open access: yes, 2008
Precision machines are essential elements in fabricating high quality micro products or micro features and directly affect the machining accuracy, repeatability and efficiency.
Chen C. Y.   +5 more
core   +1 more source

Electromagnetic levitation guide for use in ultra-precision milling centres [PDF]

open access: yes, 2015
Today's machine tools for ultra-precision machining are generally characterised by low productivity. Above all, practical cutting parameters are limited due to uncontrollable disturbance forces.
Dahlmann, Dominik   +2 more
core   +2 more sources

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