Results 11 to 20 of about 13,347 (249)

Effect of tool geometry on ultraprecision machining of soft-brittle materials: a comprehensive review

open access: yesInternational Journal of Extreme Manufacturing, 2023
Brittle materials are widely used for producing important components in the industry of optics, optoelectronics, and semiconductors. Ultraprecision machining of brittle materials with high surface quality and surface integrity helps improve the ...
Weihai Huang, Jiwang Yan
doaj   +1 more source

Experimental study on initiation and damage strength characteristics of similar materials of basalt brittle

open access: yesYantu gongcheng xuebao, 2023
The crack initiation and crack damage strengths of rock are the important indexes to evaluate the high stress failure of hard rock. Based on the Hoek triaxial compression tests and acoustic emission tests, a brittle rock-like model material that can ...
KONG Yang 1, RUAN Huaining 2, ZHANG Guirong 1, HE Ning 1, WANG Zhangchun 1
doaj   +1 more source

Experiment on surface integrity of soda-lime glass with single abrasive particle variable cutting depth scratching

open access: yesJin'gangshi yu moliao moju gongcheng, 2023
Due to the high hardness, the high brittleness and other characteristics, the hard and brittle materials represented by glass were prone to damage such as pits, brittle breakage and surface/subsurface cracks during processing, which seriously affected ...
Mengkai CHEN, Qi TENG
doaj   +3 more sources

Experimental Study on Preparation of Ultra-Hard Brittle Materials Based on Electrochemical Processing

open access: yesChemical Engineering Transactions, 2018
It is of great engineering significance to study methods for processing and preparing ultra-hard brittle materials with low processing cost and high processing efficiency.
Xiaoye Wang, Jiao Zhang, Shunda Hu
doaj   +1 more source

A Review on Ultrafast Laser Microwelding of Transparent Materials and Transparent Material–Metals

open access: yesMetals, 2023
Transparent hard and brittle (THB) materials have generated significant interest due to their excellent properties, such as wide spectral transmittance, heat resistance, chemical inactivity and high mechanical strength. To further explore the application
Jiayi Xu   +9 more
doaj   +1 more source

Experimental investigation on microgrooving characteristics of ceramics using electroplated diamond wire tools

open access: yesJournal of Mechanical Engineering and Sciences, 2022
For precision machining such as slicing and grooving of hard and brittle materials, wire tools with electroplated diamond abrasives have been widely used.
S. Sakamoto   +3 more
doaj   +1 more source

Study on the Algorithm of Three-Dimensional Surface Residual Material Height of Nano-ZrO2 Ceramics under Ultra-Precision Grinding

open access: yesMicromachines, 2021
A large number of studies have shown that the height of a residual material is the key factor affecting the surface quality of ultra-precision grinding.
Yanyan Yan   +4 more
doaj   +1 more source

Surface roughness prediction model for grinding hard-brittle substrates using workpiece rotation method

open access: yesJin'gangshi yu moliao moju gongcheng
ObjectivesWorkpiece rotation grinding has the advantages of high processing efficiency and controllable surface shape accuracy, and is the main method for thinning and flattening the back of hard-brittle substrates.
Xiaoqiu ZHANG   +8 more
doaj   +3 more sources

Design of a High-Speed Rotary Ultrasonic Machining Machine Tool for Machining Microstructure of Brittle Materials

open access: yesMicromachines, 2023
Aiming at the problems of low machining accuracy and more serious tool wear in the traditional diamond grinding machining (DGM) microstructure of hard and brittle materials, this paper proposes high-speed rotary ultrasonic machining (HRUM) technology and
Shanhua Zhang   +5 more
doaj   +1 more source

Determination of fracture toughness using the compression fracture technique [PDF]

open access: yesEPJ Web of Conferences, 2021
Many engineering materials of importance can be mechanically characterized as brittle or quasi-brittle solids. Examples include many hard polymers, ceramic composites, and low ductility metals.
Cady Carl M., Liu Cheng
doaj   +1 more source

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