Cutting performance of laser assisted diamond turning of calcium fluoride with different crystal orientations

2021 ◽  
Vol 60 (9) ◽  
pp. 2465
Author(s):  
Charan Bodlapati ◽  
Di Kang ◽  
Jayesh Navare ◽  
Robert Turnbull ◽  
Yuxiang Zhong ◽  
...  
Keyword(s):  
Calcium Fluoride ◽  
Diamond Turning ◽  
Cutting Performance ◽  
Crystal Orientations

scholarly journals Single Point Diamond Turning of Calcium Fluoride Optics

2012 ◽  
Vol 516 ◽  
pp. 408-413 ◽  
Author(s):  
Xi Chun Luo ◽  
Ji Ning Sun ◽  
Wen Long Chang ◽  
James M. Ritchie
Keyword(s):  
Surface Roughness ◽  
Tool Wear ◽  
Cutting Force ◽  
Feed Rate ◽  
Calcium Fluoride ◽  
Single Point ◽  
Main Tool ◽  
Cost Effective ◽  
Diamond Turning ◽  
White Spirit

This paper aims to develop a cost-effective diamond turning process to obtain nanosmooth CaF2 optics. Diamond tool wear was also carried out through a number of cutting trials. Three CaF2 specimens (diameter of 50 mm and thickness of 5 mm, crystal orientation of (111)) were diamond turned on an ultra precision lathe (Moore Nanotech 350UPL) by a number of facing cuts. In the cutting trials feed rate varied from 1 μm/rev to 10 μm/rev. White spirit mist was used as the coolant. Cutting forces were measured by a dynamometer (Kistler BA9256). Surface roughness of the CaF2 optics and tool flank wear were measured by a white light interferometer (Zygo Newview 5000) and a scanning electron microscope (FEI Quanta 3D FEG), respectively. It was found that using a feed rate of 1 μm/rev surface roughness Ra of 2 nm could be obtained. When the ratio of the normal cutting force to the tangential cutting force was lower than 1 tool wear would initiate. In diamond turning of calcium fluoride abrasive wear was the main tool wear mechanism. Using white spirit mist as thecoolant could avoid generation of thermal type brittle fracture on the machined CaF2 surfaces.

Study on preferred crystal orientations of Mg-Zr-O composite protective layer in AC-PDP

2006 ◽  
Vol 36 (2) ◽  
pp. 111-117 ◽  
Author(s):  
G. Bingang ◽  
L. Chunliang ◽  
S. Zhongxiao ◽  
L. Liu ◽  
F. Yufeng ◽  
...  
Keyword(s):  
Protective Layer ◽  
Crystal Orientations

Field - and Photoassisted Field Emission Studies of Calcium Fluoride Coated Silicon Tips

1996 ◽  
Vol 06 (C5) ◽  
pp. C5-129-C5-134
Author(s):  
V. N. Konopsky ◽  
V. V. Zhirnov ◽  
N. S. Sokolov ◽  
J. C. Alvarez ◽  
E. I. Givargizov ◽  
...  
Keyword(s):  
Field Emission ◽  
Calcium Fluoride ◽  
Emission Studies

Analysis of Surface Roughness and Waviness During Diamond Turning of Polycarbonate

2012 ◽  
Vol 2 (6) ◽  
pp. 268-270 ◽  
Author(s):  
Harinderpal Singh Harinderpal Singh ◽  
◽  
Rahul O vaishya ◽  
Karanvir Sing ◽  
Vinod Mishra ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Diamond Turning

STRENX 700CR

Alloy Digest ◽  
2018 ◽  
Vol 67 (8) ◽  
Keyword(s):  
Yield Strength ◽  
Physical Properties ◽  
Structural Steel ◽  
Tensile Properties ◽  
Cutting Performance ◽  
Cold Forming ◽  
Cold Rolled ◽  
Minimum Yield

Abstract Strenx 700 CR is a cold-rolled structural steel with a minimum yield strength of 700 MPa (102 ksi) used to produce stronger and lighter structures. Strenx 700 CR has good cold forming, welding, and cutting performance. This datasheet provides information on composition, physical properties, and tensile properties. It also includes information on surface qualities as well as joining. Filing Code: SA-819. Producer or source: SSAB Swedish Steel Inc..

scholarly journals Diffractive optical characteristics of nanometric surface topography generated by diamond turning

2021 ◽  
Vol 67 ◽  
pp. 23-34
Author(s):  
Dongxu Wu ◽  
Chengwei Kang ◽  
Fusheng Liang ◽  
Guangpeng Yan ◽  
Fengzhou Fang
Keyword(s):  
Surface Topography ◽  
Diamond Turning ◽  
Optical Characteristics
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