Results 21 to 30 of about 3,504 (250)

A “Double Accuracy Theory” and Experimental Research on Precision Grinding

open access: yesApplied Sciences, 2020
In the global machining industry, ultra-precision/ultra-high-speed machining has become a challenge, and its requirements are getting higher and higher.
Lai Hu, Yipeng Li, Jun Zha, Yaolong Chen
doaj   +1 more source

Fabrication of Cylindrical Microlens Array on RB-SiC Moulds by Precision Grinding with MAWJ-Textured Diamond Wheels

open access: yesApplied Sciences, 2022
Cylindrical microlens array (CMA) is applied widely in imaging, sensing, and laser machining fields. Among the many techniques for machining CMA, moulding is considered a mass-production method with low-cost and good accuracy.
Fukang Su   +6 more
doaj   +1 more source

Splicing Measurement and Compensation of Straightness Errors for Ultra-Precision Guideways

open access: yesMicromachines, 2023
The straightness error of guideways is one of the key indicators of an ultra-precision machine, which plays an important role in the machining accuracy of a workpiece. In order to measure the straightness error of a long-distance ultra-precision guideway
Lian Zhou   +6 more
doaj   +1 more source

Investigations into a free-form grinding process chain at the example of a beam shaping element [PDF]

open access: yesEPJ Web of Conferences
The production of optical free-form surfaces requires a high level of precision and surface quality. The process chain presented combines pre-grinding, fine grinding and ultra-fine grinding using a 5-axis CNC machine in order to achieve high shape ...
Henkel Sebastian   +4 more
doaj   +1 more source

Ultra-short pulsed laser conditioning of metallic-bonded diamond grinding tools

open access: yesMaterials & Design, 2020
A novel approach for machining of cylindrical ultra-hard materials with a highly defined contour is presented. Diamond grinding tools with complex geometry are manufactured with picosecond orthogonal and quasi-tangential laser ablation.
Norbert Ackerl   +3 more
doaj   +1 more source

Study on machining performance of fixed-abrasive lap-grinding plate with random grid structure

open access: yesJin'gangshi yu moliao moju gongcheng, 2022
To meet the increasing requirements on material removal efficiency, surface quality, and subsurface damage in the ultra-precision grinding process, a textured-fixed abrasive plate (T-FAP) with random grid structure based on the Voronoi Diagram is ...
Xingtai SHI   +6 more
doaj   +3 more sources

Study on the surface quality of bearing raceway in plunge electrolytic internal grinding

open access: yesHeliyon, 2023
Bearings are the core basic components that determine the stable operation of high-end equipment. The traditional processing technology of the raceway surface has been unable to meet the current processing requirements of high precision and high surface ...
Zhanzhan Hu   +5 more
doaj   +1 more source

Ultra-precision grinding of monocrystalline silicon cylindrical mirror

open access: yesJournal of Physics: Conference Series, 2023
Abstract As one of the important functional components in the optical diagnosis system, the processing accuracy of monocrystalline silicon cylindrical mirror directly affects the overall performance of the entire experimental device. In order to obtain high-precision monocrystalline silicon cylindrical optical elements, the coordinate ...
Jie Li   +3 more
openaire   +1 more source

Ultra-low temperature grinding process and surface integrity of SiCp/Al material

open access: yesJin'gangshi yu moliao moju gongcheng
ObjectivesAs a new-generation high-performance structural material, silicon carbide particle-reinforced aluminum matrix composites (SiCp/Al) exhibit outstanding specific strength, wear resistance, and thermal stability, making them highly valuable in ...
Weicheng GUO   +3 more
doaj   +3 more sources

Process Chain for Ultra-Precision and High-Efficiency Manufacturing of Large-Aperture Silicon Carbide Aspheric Mirrors

open access: yesMicromachines, 2023
A large-aperture silicon carbide (SiC) aspheric mirror has the advantages of being light weight and having a high specific stiffness, which is the key component of a space optical system.
Bo Zhong   +9 more
doaj   +1 more source

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