Results 21 to 30 of about 5,719 (262)

Profile and roughness of electrorheological finishing optical surfaces

Frontiers of Optoelectronics, 2014
This paper focuses on the process of electrorheological (ER) finishing optical surfaces. Experiments on K9 mirrors were conducted. In one experiment, the operating distance was varied over 0.5–0.8 mm with the voltage at 2000 V. The maximum peak-to-valley (PV) reduction was obtained at the distance of 0.5 mm, where the PV value was reduced from 58.71 to
Haobo Cheng, Jingshi Su, Yong Chen, Hon-Yuen Tam   +3 more
openaire   +1 more source

Fundamental research on wear behavior of various coated tools in dry hobbing (Influence of hardness of work material)

Nihon Kikai Gakkai ronbunshu, 2019
In recent hobbing, the technologies of dry cutting have been developed in an attempt to improve the working environmental and prevent global environmental pollution.
Hironori MATSUOKA, Akio KUBO, Takahiro RYU, Hua QIU, Takashi NAKAE   +4 more
doaj   +1 more source

Investigating effects of cutting parameters on surface roughness machined by turning of C45 steel based on Taguchi methodology and ANOVA

CTU Journal of Innovation and Sustainable Development
The present study investigates the effects of cutting parameters (cutting speed, feed rate, and depth of cut) on the roughness of the finished surface during turning C45 steel using CNC QUICK TURN 150 SG (Mazak, Japan) with carbide inserts WNMG431PP ...
Thanh Thuong Huynh, Hoai Tan Nguyen, Quoc Khanh Huynh, Van Cuong Nguyen, Van Huu Bui   +4 more
doaj   +3 more sources

Surface roughness and surface hardness of acrylic resins exposed to cuttle bone powder polishing agents

Journal of Baghdad College of Dentistry
Background: Preserving oral health for denture wearers is of high priority. It can be significantly affected by the degree of surface roughness of the dentures. So, it is essential to refine the dentures properly before delivering to the patient.
Israa M Hummudi , Ihab N Yaseen, Melad S Mageed, Ghasak GF Alatrakchi   +3 more
doaj   +1 more source

Statistical Approach Optimizing Slant Feed Grinding

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2012
Micro-grinding is one of the methods to create submillimeter-structures, and it has been applied to many processes such as finishing of internal surface of fuel injector valves and dental technique.
Keita SHIMADA, Pay Jun LIEW, Tianfeng ZHOU, Jiwang YAN, Tsunemoto KURIYAGAWA   +4 more
doaj   +1 more source

Properties of Thermally Modified Scots Pine (Pinus sylvestris L.), Kazdağı Fir (Abies equi-trojani Asch. et Sint.), and Eastern Beech (Fagus orientalis Lipsky)

BioResources, 2023
Surface roughness and discoloration of thermally modified Scots pine (Pinus sylvestris L.), Kazdağı fir (Abies equi-trojani Asch. et Sint.), and Eastern beech (Fagus orientalis Lipsky) were evaluated.
Onur Ulker
doaj   +2 more sources

Chemical assisted ball end magnetorheological finishing of aluminium 7075 alloy

Ain Shams Engineering Journal
Areas like aerospace, solar, medical, electronics, optics widely use nano-finished or high precision aluminium alloys. These nano-finished aluminium alloys are being used as metal mirrors, micro-electronics devices, diaphragm in optical sensors etc.
Anand Sharma, Mahendra Singh Niranjan
doaj   +1 more source

Analysis and optimization of process parameter intervals for surface quality in polishing Ti-6Al-4V blisk blade

Results in Physics, 2019
As the predominant factor influencing the service performance and life cycle of finished parts, surface quality is always improved by polishing technology in the machining process of aero-engine blade.
Zhen Chen, Yaoyao Shi, Xiaojun Lin, Tao Yu, Pan Zhao, Chao Kang, Xiaodong He, Hualian Li   +7 more
doaj   +1 more source

Studies on Grinding : On the Roughness of Finished Surface

Transactions of the Japan Society of Mechanical Engineers, 1952
The theoretical formula on the roughness of grinding finished surface was introduced, basing upon the fact that the roughness is proportional to the root of mean cutting area (mean chip area) of a grain of wheel. The results of experiments well agreed with this formula : the surface roughness increases with depth of cut and work surface velocity, and ...
openaire   +2 more sources

Surface roughness and hardness of a composite resin: influence of finishing and polishing and immersion methods

Materials Research, 2010
This study evaluated the finishing and polishing effect on the surface roughness and hardness of the Filtek Supreme XT, in fluoride solutions. Specimens were prepared (n = 140) with half of the samples finished and polished with Super-Snap® disks.
Ana Luísa Botta Martins de Oliveira, Patrícia Petromilli Nordi Sasso Garcia, Patrícia Aleixo dos Santos, Juliana Álvares Duarte Bonini Campos   +3 more
doaj   +1 more source