Optimization analysis of ultra-precision flying-tool cutting machine for optical elements

2021 ◽  
Author(s):  
Shenggen Zhu ◽  
Feihu Zhang ◽  
Jinfeng Bai ◽  
Lingyu Zhao ◽  
Huiying Zhao
Keyword(s):  
Optimization Analysis ◽  
Optical Elements ◽  
Cutting Machine ◽  
Ultra Precision ◽  
Tool Cutting

scholarly journals Micrometer-scale machining of metals and polymers enabled by focused ion beam sputtering

1998 ◽  
Vol 546 ◽  
Author(s):  
D. P. Adams ◽  
G. L. Benavides ◽  
M. J. vasile
Keyword(s):  
Focused Ion Beam ◽  
Ion Beam ◽  
Ion Beam Sputtering ◽  
Beam Sputtering ◽  
End Mills ◽  
Ultra Precision ◽  
Tool Shank ◽  
Micrometer Scale ◽  
Tool Cutting ◽  
Micro Tools

AbstractThis work combines focused ion beam sputtering and ultra-precision machining for microfabrication of metal alloys and polymers. Specifically, micro-end mills are made by Ga ion beam sputtering of a cylindrical tool shank. Using an ion energy of 20keV, the focused beam defines the tool cutting edges that have submicrometer radii of curvature. We demonstrate 25μm diameter micromilling tools having 2, 4 and 5 cutting edges. These tools fabricate fine channels, 26–28 microns wide, in 6061 aluminum, brass, and polymethyl methacrylate. Micro-tools are structurally robust and operate for more than 5 hours without fracture.

Polishing Characteristics of ELID-Ground Surface of Nano Precision Optical Elements

2005 ◽  
Vol 291-292 ◽  
pp. 365-370 ◽  
Author(s):  
Wei Min Lin ◽  
Hitoshi Ohmori ◽  
T. Suzuki ◽  
Yoshihiro Uehara ◽  
Shinya MORITA
Keyword(s):  
Ground Surface ◽  
Diamond Wheel ◽  
Fused Silica ◽  
Optical Elements ◽  
Form Accuracy ◽  
High Form ◽  
Ultra Precision ◽  
Fundamental Research ◽  
Aspherical Mirrors ◽  
Polishing Tool

This paper describes an ultra precision polishing method of aspherical mirrors, and the fundamental research on polishing characteristics. The aspherical mirrors with a diameter of about 30mm made by fused silica glass and CVD-SiC were ELID (electrolytic in-process dressing)-ground to high form accuracy with #4000 cast iron bonded diamond wheel, and then polished with a small polishing tool. As the result, final surface roughness of 1.4nmRa and form accuracy of 1.2 μm was obtained.

Influencing Factors of Surface Generation in Ultra-Precision Fly Cutting

2016 ◽  
Vol 1136 ◽  
pp. 221-226
Author(s):  
Lan Zhan ◽  
Fei Hu Zhang ◽  
Chen Hui An ◽  
Zhi Peng Li
Keyword(s):  
Surface Topography ◽  
Influencing Factors ◽  
Surface Profile ◽  
Surface Generation ◽  
Cutting Machine ◽  
Fly Cutting ◽  
3D Surface ◽  
Ultra Precision ◽  
Topography Model ◽  
Great Focus

Ultra-precision fly cutting machines have long been the hardest one to compliant and induce great focus of researchers. In this paper, a surface topography model is proposed to predict the surface generation in an ultra-precision fly cutting machine. The building of surface topography model is based on the trace of the tool tip. With the 3D surface profile simulations of workpieces, several influencing factors of surface topography, especially the factors related to micro waviness error, are studied.

Current Situation of Ultra-Precision Bonnet Polishing Key Technology of Optical Elements

2009 ◽  
Vol 29 (1) ◽  
pp. 27-34 ◽  
Author(s):  
张伟 Zhang Wei ◽  
李洪玉 Li Hongyu ◽  
于国彧 Yu Guoyu
Keyword(s):  
Current Situation ◽  
Optical Elements ◽  
Bonnet Polishing ◽  
Key Technology ◽  
Ultra Precision

Numerical Simulation on Vibration-Assisted Ultra-Precision Cutting of Steel AISI 1045 with PCD Tool

2012 ◽  
Vol 497 ◽  
pp. 324-328 ◽  
Author(s):  
Ahmed Al-Zahrani ◽  
Xiao Dan Xie ◽  
Yong Li
Keyword(s):  
Cutting Force ◽  
Polycrystalline Diamond ◽  
Finite Element Software ◽  
Pcd Tool ◽  
Optimum Selection ◽  
Aisi 1045 ◽  
Ultra Precision ◽  
Steel Aisi ◽  
Different Depths ◽  
Tool Cutting

Vibration-assisted cutting (VAC) with polycrystalline diamond (PCD) tool refers to the cutting with certain amplitude and high frequency tool vibration, which can definitely reduce the cutting force and tool wear compared with conventional cutting (CC). In this paper, a plane strain orthogonal model for PCD tool cutting steel AISI 1045 is established by using the finite element software ABAQUS/explicit. Then the cutting force of VAC compared with CC is explained. The value and distribution of cutting force at different depths of cutting is analyzed. It is also studied the effects of vibration frequency and amplitude on cutting force and thrust force during the ultra-precision cutting process. Afterwards, optimum selection of process parameters is presented for VAC processing of steel AISI 1045.

Investigation of Micro Cutting Tool for Diffractive Optical Elements Using FEM Analysis

2013 ◽  
Vol 378 ◽  
pp. 444-448
Author(s):  
Seung Yub Baek
Keyword(s):  
Cutting Tool ◽  
Cutting Tools ◽  
Optical Systems ◽  
Diffractive Optical Elements ◽  
Diamond Cutting ◽  
Optical Elements ◽  
Micro Cutting ◽  
Diamond Cutting Tools ◽  
Single Crystal Diamond ◽  
Ultra Precision

Diffractive optical elements (DOE) can be used to simplify optical systems such as lightening its mass, reducing elements numbers and so on. Single-crystal diamond is considered as the preferred tool materials in ultra-precision and nanometer-scale cutting operation. Due to the well known and exceptional difficulty in shaping, the fabrication of diamond cutting tools requires special processing method. As a highly efficient and cost-effective solution, the mechanical lapping process has been extensively applied in tool-making industry. In this paper, the key enabling technologies to design and fabricate the diamond-cutting tools for ultra-precision and submicronic machining are presented and reviewed. The paper describes the shape of micro cutting tool that is based on the finite element method of calculation of relief angle and rake angle.

An ultra-precision tool nanoindentation instrument for replication of single point diamond tool cutting edges

2018 ◽  
Vol 29 (5) ◽  
pp. 054004 ◽  
Author(s):  
Yindi Cai ◽  
Yuan-Liu Chen ◽  
Malu Xu ◽  
Yuki Shimizu ◽  
So Ito ◽  
...  
Keyword(s):  
Diamond Tool ◽  
Single Point ◽  
Ultra Precision ◽  
Nanoindentation Instrument ◽  
Tool Cutting

Dynamics Modelling and Simulating of Ultra-precision Fly-Cutting Machine Tool

2019 ◽  
Vol 21 (2) ◽  
pp. 189-202 ◽  
Author(s):  
Hanjing Lu ◽  
Yuanyuan Ding ◽  
Yu Chang ◽  
Gangli Chen ◽  
Xiaoting Rui
Keyword(s):  
Machine Tool ◽  
Cutting Machine ◽  
Fly Cutting ◽  
Ultra Precision ◽  
Dynamics Modelling
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