Design and fabrication of nano-scale single crystal diamond cutting tool by focused ion beam (FIB) milling

2015 ◽  
Author(s):  
Seung-Yub Baek
Keyword(s):  
Single Crystal ◽  
Focused Ion Beam ◽  
Cutting Tool ◽  
Ion Beam ◽  
Diamond Cutting ◽  
Nano Scale ◽  
Single Crystal Diamond ◽  
Diamond Cutting Tool

Development and machining performance of a textured diamond cutting tool fabricated with a focused ion beam and heat treatment

2017 ◽  
Vol 47 ◽  
pp. 311-320 ◽  
Author(s):  
Noritaka Kawasegi ◽  
Kazuma Ozaki ◽  
Noboru Morita ◽  
Kazuhito Nishimura ◽  
Makoto Yamaguchi
Keyword(s):  
Heat Treatment ◽  
Focused Ion Beam ◽  
Cutting Tool ◽  
Ion Beam ◽  
Machining Performance ◽  
Diamond Cutting ◽  
Diamond Cutting Tool

Controllability Study of Single-Crystal Diamond Cutting Tool Focus Ion Beam Milling with Different Beam Current and Tilting Angle

2016 ◽  
Vol 1136 ◽  
pp. 430-434 ◽  
Author(s):  
Seung Yub Baek ◽  
Woong Kirl Choi ◽  
Young Jae Choi ◽  
Eun Sang Lee
Keyword(s):  
Cutting Tool ◽  
Ion Beam ◽  
Beam Current ◽  
Diamond Cutting ◽  
Tilting Angle ◽  
Tool Edge ◽  
Single Crystal Diamond ◽  
Processing Procedure ◽  
Edge Sharpness ◽  
Diamond Cutting Tool

Micro/nanoscale diamond cutting tools used in ultra-precision machining can be fabricated by precision grinding, but it is hard to fabricate a tool with a nanometric cutting edge and complex configurations. High-precision geometry accuracy and special shapes for microcutting tools with sharp edges can be achieved by focused ion beam (FIB) milling. However, in the FIB milling process, the surface properties of the substrate (such as a diamond substrate) are affected by the amorphous damage layer caused by the FIB gallium ion collision and implantation and these influence the diamond cutting tool edge sharpness and increase the processing procedure. In this study, to reduce the diamond cutting tool edge sharpness and processing procedure, FIB milling beam current and tilting angle characteristics of single-crystal diamond were investigated, along with method for decreasing the FIB-induced damage on diamond tools by platinum (Pt) coating on the diamond substrate. Experimental results revealed that optimize beam current, tilting angle and platinum (Pt) coating could lead to relatively few processing procedure and sharp cutting tool edge. The obtained results are an endeavor to enhance the controllability of the diamond cutting tool FIB milling.

scholarly journals Graphitization Behavior of Single Crystal Diamond for the Application in Nano-Metric Cutting

2018 ◽  
Vol 14 (5) ◽  
pp. 377-383 ◽  
Author(s):  
Qingshun Bai ◽  
Zhiguo Wang ◽  
Yongbo Guo ◽  
Jiaxuan Chen ◽  
Yuanjiang Shang
Keyword(s):  
Molecular Dynamics ◽  
Single Crystal ◽  
Cutting Tool ◽  
Diamond Tool ◽  
Diamond Crystal ◽  
Dynamics Simulation ◽  
Diamond Cutting ◽  
Single Crystal Diamond ◽  
Ring Method ◽  
Diamond Cutting Tool

Background: Graphitization behavior of diamond has received an increasing interest in nanoscale machining of some hard and brittle materials. Diamond has always been an important and excellent tool material in cutting area. However, the graphitization of the diamond tool is inevitable when it was used in special conditions. It is indicated that the graphitization of diamond crystal has great influence on the wear resistance of diamond cutting tool. The graphitization behavior needs to be investigated extensively in nanoscale with an atomic view. Molecular dynamics simulation provides a useful tool for understanding of the graphitization mechanism of diamond. The investigation on graphitization behavior of single crystal diamond can also provide a useful reference for the application of diamond cutting tool. Materials and Methods: In this paper, a molecular dynamics (MD) diamond crystal model is built to examine the graphitization behavior of diamond under various conditions. The sixfold ring method was employed to identify the structural characteristics of graphite and diamond. The effects of temperature and crystal orientation on the graphitization of diamond have been revealed. Considering the effect of temperature, the anisotropy of diamond graphitization against various crystal planes is presented and discussed carefully. The nano-metric cutting model of diamond tool evaluated by the sixfold ring method also proves the graphitization mechanisms in atomic view. Results: Results indicate that the sixfold ring method is a reliable method to evaluate the graphitization behavior of diamond crystal. There exists a critical temperature of the graphitization of diamond. The results also show that {111} plane is more easy to get graphitization as compared with other crystal planes. However, {100} plane of diamond model presents the highest antigraphitization property. Conclusion: The obtained results have provided the in-depth understanding on the wear of diamond tool in nano-metric machining and underpin the development of diamond cutting tool.

0401 Fabrication of a diamond cutting tool utilizing focused ion beam and its cutting properties

2013 ◽  
Vol 2013.50 (0) ◽  
pp. 040101-040102
Author(s):  
Tomoyuki NIWATA ◽  
Noritaka KAWASEGI ◽  
Noboru TAKANO ◽  
Shigeru YAMADA ◽  
Noboru MORITA ◽  
...  
Keyword(s):  
Focused Ion Beam ◽  
Cutting Tool ◽  
Ion Beam ◽  
Diamond Cutting ◽  
Diamond Cutting Tool

scholarly journals The wear of single-crystal diamond cutting tool.

1989 ◽  
Vol 55 (2) ◽  
pp. 347-353
Author(s):  
Masanori Yoshikawa ◽  
Kunihiko Kikuchi ◽  
Tadao Tsukada ◽  
Kazuyuki Sasajima
Keyword(s):  
Single Crystal ◽  
Cutting Tool ◽  
Diamond Cutting ◽  
Single Crystal Diamond ◽  
Diamond Cutting Tool
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