Results 1 to 10 of about 3,504 (250)

Vertical Spindle Grinding of Si and Granite with a New Abrasive Disk

Advances in Mechanical Engineering, 2013
An investigation was reported of a new attempt in the fabrication of an ultrafine abrasive tool for vertical spindle grinding. The principle of sol-gel was applied to granulate ultra-fine abrasives in order to reduce their aggregation.
Yiqing Yu, Juan Liu, Bin Kuang, Jianyun Shen, Xipeng Xu   +4 more
doaj   +1 more source

Improvement and Practice of Grinding System in Section Ⅰ of a 6000 t/d Copper Polymetal Concentrator

Kuangchan zonghe liyong, 2022
Ultra-low-grade copper polymetallic ore is an important component of domestic copper ore resources. This type of ore has a low storage grade and is difficult to recycle.
Tianlong Gao, Lisheng Ai
doaj   +1 more source

Research on Subsurface Damage Measurement of Fused Silica in Ultra-Precision Grinding Based on Laser Damage Performance

Applied Sciences
In order to achieve accurate prediction of subsurface damage (SSD) in ultra-precision grinding of high-performance ultra-violet laser-irradiated fused silica optics, the paper combines damage precursor multimodal measurement technology with ...
Yaoyu Zhong, Mingjin Xu, Wenjun Kuang, Fubin Wan, Zhifan Lin, Yansong Fan, Qingqing Hu, Fufang Xu   +7 more
doaj   +1 more source

Investigate on surface/subsurface damage mechanisms and manufacturability of ultra-smooth surface in ultra-precision ductile grinding of sapphire optics

Journal of Materials Research and Technology
Sapphire is a kind of high hard-brittle transparent single crystal material with excellent comprehensive properties in the aspects of mechanics, thermology and optics, which can be widely used in aviation, aerospace, medical treatment, high-energy laser ...
Sheng Wang, Qinghe Zhang, Qingliang Zhao, Ming Zhou   +3 more
doaj   +1 more source

Development of a High-Speed Precision Ultrasonic-Assisted Spindle for Ultra-Precision Optical Mold Machining

Sensors
Ultrasonic vibration-assisted grinding is a critical method for machining ultra-hard optical molds. However, current ultrasonic-assisted grinding spindles, as essential foundational equipment, face limitations in maintaining ultra-high rotational speed ...
Dingwen Wang, Qiu Hong, Shaohui Yin
doaj   +1 more source

A Method of Restraining the Adverse Effects of Grinding Marks on Small Aperture Aspheric Mirrors

Micromachines, 2022
The grinding method is used as the preliminary processing procedure for small aperture aspheric mirrors. Regular grinding marks produced in the grinding process significantly affect the mid-spatial frequency error; however, because of their small radius ...
Jiahui Bao, Xiaoqiang Peng, Hao Hu, Tao Lai   +3 more
doaj   +1 more source

Novel designed mechanical-mechanochemical synergistic micro-grinding technology and compounded abrasive micro-grinding tools

Journal of Materials Research and Technology, 2023
The mechanical and mechanochemical synergistic micro-grinding technology was proposed for grinding hard and brittle materials, especially for fused silica micro parts in this work.
Wei Li, Shiqiang Xie, Zhengyang Deng, Dongbo Zhou, Maojun Li, Xudong Guo, Wei Tang   +6 more
doaj   +1 more source

The Process Optimization Analysis of CBN Abrasive Cu-Sn-Ti Coating Fabrication via the Ultrasonic-Vibration-Assisted Laser Cladding Method

Applied Sciences
Ultra-precision machining has higher requirements for the performance of abrasive tools, but the traditional grinding wheel has some problems such as irregular grain arrangement, limited chip space, and high grinding temperature.
Juncai Li, Mingze Ma, Tianbiao Yu, Ming Li, Ji Zhao   +4 more
doaj   +1 more source

Analysis and experimental research of grinding wheel errors in cross grinding aspheric surfaces

Jin'gangshi yu moliao moju gongcheng, 2017
To research the influences of grinding wheel errors on ultra-precision grinding aspheric surface quality in cross grinding, a variety of grinding wheel errors were analyzed theoretically, the influences of various grinding wheel errors on ultra-precision
CHEN Bing, HU Honglu, ZHONG Yixing, LI Shichun, DENG Chaohui, ZHAO Qingliang   +5 more
doaj  

Pulse laser precision truing of the V-shaped coarse-grained electroplating CBN grinding wheel

Materials & Design, 2022
The machining difficulty has limited the further application of ultra-hard materials. For V-shaped coarse-grained electroplated cubic boron nitride (CBN) grinding wheel, a precise and efficient pulse laser truing method was proposed.
Bing Guo, Qingyu Meng, Shuai Li, Guicheng Wu, Yang Xiang, Qingliang Zhao   +5 more
doaj   +1 more source