Study on the micro-milling of optical microstructure with the assist of the workpiece vibration

2014 ◽  
Author(s):  
Guo Li ◽  
Fei Ding ◽  
Bo Wang ◽  
Lin Che ◽  
Chen Feng Zhang
Author(s):  
P.G. Pawar ◽  
P. Duhamel ◽  
G.W. Monk

A beam of ions of mass greater than a few atomic mass units and with sufficient energy can remove atoms from the surface of a solid material at a useful rate. A system used to achieve this purpose under controlled atmospheres is called an ion miliing machine. An ion milling apparatus presently available as IMMI-III with a IMMIAC was used in this investigation. Unless otherwise stated, all the micro milling operations were done with Ar+ at 6kv using a beam current of 100 μA for each of the two guns, with a specimen tilt of 15° from the horizontal plane.It is fairly well established that ion bombardment of the surface of homogeneous materials can produce surface topography which resembles geological erosional features.


2021 ◽  
Vol 1950 (1) ◽  
pp. 012046
Author(s):  
Ashutosh Roushan ◽  
U. Srinivas Rao ◽  
Karali Patra ◽  
Priyabrata Sahoo
Keyword(s):  

Procedia CIRP ◽  
2021 ◽  
Vol 99 ◽  
pp. 177-182
Author(s):  
Barnabás Zoltán Balázs ◽  
Norbert Geier ◽  
Csongor Pereszlai ◽  
Dániel István Poór ◽  
Márton Takács

2021 ◽  
Vol 70 ◽  
pp. 15-25
Author(s):  
Xiuqing Hao ◽  
Wenhao Xu ◽  
Mengyue Chen ◽  
Chen Wang ◽  
Jinjin Han ◽  
...  

2012 ◽  
Vol 498 ◽  
pp. 91-96 ◽  
Author(s):  
J. Gomar ◽  
A. Amaro ◽  
E. Vázquez ◽  
J. Ciurana ◽  
C. Rodríguez

The use of conventional machining processes has been subject to important decline probably due to the increment in the use of emerging technologies. Therefore, the main applications of these traditional processes, such as automotive industry, are in crisis. In order to have a chance to compete successfully in the new trends, the machining industry must meet the needs of alternative sectors such as biomedical field. The aim of this study is to prove the capacity of micro-milling, by machining complex micro-cavities on aluminum workpiece using a conventional milling machine. Results are obtained by evaluating accuracy and geometric features. This study finds that the feed per tooth is a significant factor in order to obtain better results. The use of coolant increases the tool wear and therefore dimensional errors. This scope is a potential opportunity to reutilize the conventional machines from a new approach.


2014 ◽  
Vol 577 ◽  
pp. 108-111 ◽  
Author(s):  
Ying Qiu ◽  
Mei Lin Gu ◽  
Feng Guang Zhang ◽  
Zhi Wei

The discrete element method (DEM) is applied to glass micromachining in this study. By three standard tests the discrete element model is established to match the main mechanical properties of glass. Then, indentating, cutting, micro milling process are simulated. Results show that the vertical damage depth is prevented from reaching the final machined surface in cutting process. Tool rake angle is the most remarkable factor influencing on the chip deformation and cutting force. The final machined surface is determined by the minimum cutting thickness per edge. Different cutting thickness, cutter shape and spindle speed largely effect on the mechanism of glass.


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