Micro-cutting with diamond tool micro-patterned by femtosecond laser

2014 ◽  
Vol 15 (6) ◽  
pp. 1081-1085 ◽  
Author(s):  
Jaegu Kim ◽  
Tae-Jin Je ◽  
Sung-Hak Cho ◽  
Eun-Chae Jeon ◽  
Kyung-Hyun Whang
Keyword(s):  
Femtosecond Laser ◽  
Diamond Tool ◽  
Micro Cutting

Wear characteristics of the pointed diamond tool in ultraprecision and micro cutting of Al 6061 V-grooves

2021 ◽  
pp. 117414
Author(s):  
Zhipeng Cui ◽  
Chunyu Zhang ◽  
Haijun Zhang ◽  
Guo Li ◽  
Liqiang Wu ◽  
...  
Keyword(s):  
Diamond Tool ◽  
Micro Cutting ◽  
Wear Characteristics ◽  
Al 6061

Face Turning of Cobalt-Free Tungsten Carbide Using Nano-Polycrystalline Diamond Tool

2016 ◽  
Vol 1136 ◽  
pp. 245-250
Author(s):  
Akinori Yui ◽  
Takayuki Kitajima ◽  
Kenichiro Yoshitomi
Keyword(s):  
Surface Roughness ◽  
Tungsten Carbide ◽  
Diamond Tool ◽  
Brittle Materials ◽  
Polycrystalline Diamond ◽  
Zinc Dialkyldithiophosphate ◽  
Micro Cutting ◽  
Fluid Surface ◽  
Hard And Brittle Materials ◽  
Mold Life

The use of hard and brittle materials for manufacturing optical parts, such as dies and molds are required in order to extend mold life. Although, cobalt-free tungsten carbide is one of the hardest materials, micro-cutting is very difficult due to its hardness and its brittleness. This paper investigates face turning of cobalt-free tungsten carbide using a nanopolycrystalline diamond [NPD] tool and Zinc dialkyldithiophosphate (ZnDTP) fluid. Surface roughness of the cobalt-free tungsten carbide achieved was 22nmRz, which is far larger than the theoretical value. That is, traditional cutting theory does not directly apply for face turning of cobalt-free tungsten carbide using NPD tool and ZnDTP fluid.

3313 Study on Micro Cutting of Tungsten Carbide by Diamond Tool

2011 ◽  
Vol 2011.6 (0) ◽  
pp. _3313-1_-_3313-4_ ◽  
Author(s):  
Hiroo Shizuka ◽  
Koichi Okuda ◽  
Masayuki Nunobiki ◽  
Yoshihiro Yokoyama
Keyword(s):  
Tungsten Carbide ◽  
Diamond Tool ◽  
Micro Cutting

Ti:sapphire femtosecond laser direct micro-cutting and profiling of graphene

2012 ◽  
Vol 109 (2) ◽  
pp. 291-297 ◽  
Author(s):  
W. Zhang ◽  
L. Li ◽  
Z. B. Wang ◽  
A. A. Pena ◽  
D. J. Whitehead ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Micro Cutting

scholarly journals Radiational Thermometry of Diamond Tool Tip Temperature in Micro Cutting

2008 ◽  
Vol 74 (1) ◽  
pp. 51-56 ◽  
Author(s):  
Masahiko SATO ◽  
Kazutomo MIYAZAKI ◽  
Hisataka TANAKA
Keyword(s):  
Diamond Tool ◽  
Micro Cutting

Nanosecond laser-induced breakdown assisted by femtosecond laser pre-ionization in air: the effect on spatial resolution and continuous radiation

2020 ◽  
Vol 92 (2) ◽  
pp. 20701
Author(s):  
Bo Li ◽  
Xiaofeng Li ◽  
Zhifeng Zhu ◽  
Qiang Gao
Keyword(s):  
Femtosecond Laser ◽  
Spatial Resolution ◽  
Laser Induced Breakdown Spectroscopy ◽  
Nanosecond Laser ◽  
Breakdown Threshold ◽  
Powerful Technique ◽  
Breakdown Spectroscopy ◽  
Continuous Radiation ◽  
Laser Induced Breakdown

Laser-induced breakdown spectroscopy (LIBS) is a powerful technique for quantitative diagnostics of gases. The spatial resolution of LIBS, however, is limited by the volume of plasma. Here femtosecond-nanosecond dual-pulsed LIBS was demonstrated. Using this method, the breakdown threshold was reduced by 80%, and decay of continuous radiation was shortened. In addition, the volume of the plasma was shrunk by 85% and hence, the spatial resolution of LIBS was significantly improved.

Femtosecond laser assisted penetrating keratoplasty

2006 ◽  
Vol 223 (S 1) ◽  
Author(s):  
MP Holzer ◽  
TM Rabsilber ◽  
GU Auffarth
Keyword(s):  
Femtosecond Laser ◽  
Penetrating Keratoplasty
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