An Insight into Laser-Assisted Jet Electrochemical Machining Process

2018 ◽  
pp. 143-177 ◽  
Author(s):  
Anup Malik ◽  
Alakesh Manna
Keyword(s):  
Electrochemical Machining ◽  
Machining Process ◽  
Jet Electrochemical Machining ◽  
Insight Into

scholarly journals Fast Fabrication of Complex Surficial Micro-Features Using Sequential Lithography and Jet Electrochemical Machining

Micromachines ◽  
2020 ◽  
Vol 11 (10) ◽  
pp. 948
Author(s):  
Ming Wu ◽  
Krishna Kumar Saxena ◽  
Zhongning Guo ◽  
Jun Qian ◽  
Dominiek Reynaerts
Keyword(s):  
Contact Process ◽  
Electrochemical Machining ◽  
Machining Process ◽  
Shape Error ◽  
Shape Deviation ◽  
Shape Accuracy ◽  
High Productivity ◽  
Micro Features ◽  
Surface Microstructures ◽  
Jet Electrochemical Machining

This paper presents fabrication of complex surficial micro-features employing a cross-innovative hybrid process inspired from lithography and Jet-ECM. The process is referred here as mask electrolyte jet machining (MEJM). MEJM is a non-contact machining process which combines high resolution of lithography and greater flexibility of Jet-ECM. It is a non-contact process which can fabricate variety of microstructures on difficult-to-machine materials without need of expensive tooling. The presented work demonstrates the process performance of this technology by statistical analysis and multivariate kernel density estimation (KDE) based on probabilistic density function. Micro-letters are fabricated as an example of complex surficial structure comprising of multiple intersecting, straight and curved grooves. The processing response is characterized in terms of geometrical size, similarity ratio, and cumulative shape deviation. Experimental results demonstrated that micro letters with good repeatability (minimum SD of shape error ratio 0.297%) and shape accuracy (minimum shape error of 0.039%) can be fabricated with this technology. The results suggest MEJM could be a promising technology for batch manufacturing of surface microstructures with high productivity.

scholarly journals The Effect of Electrolytic Jet Orientation on Machining Characteristics in Jet Electrochemical Machining

Micromachines ◽  
2019 ◽  
Vol 10 (6) ◽  
pp. 404 ◽  
Author(s):  
Xinmin Zhang ◽  
Xudong Song ◽  
Pingmei Ming ◽  
Xinchao Li ◽  
Yongbin Zeng ◽  
...  
Keyword(s):  
Material Removal ◽  
Removal Rate ◽  
Electrochemical Machining ◽  
Machining Process ◽  
Machining Accuracy ◽  
Horizontal Orientation ◽  
Jet Electrochemical Machining ◽  
Machining Characteristics ◽  
Machining Localization ◽  
Vertical Jet

Jet electrochemical machining (Jet-ECM) is a significant prospective electrochemical machining process for the fabrication of micro-sized features. Traditionally and normally, the Jet-ECM process is carried out with its electrolytic jet being vertically impinged downstream against the workpiece. Therefore, other jet orientations, including a vertically upstream orientation and a horizontal orientation, have rarely been adopted. In this study, three jet orientations were applied to electrolytic jet machining, and the effect of jet orientations on machining characteristics was systemically investigated. Horizontal jet orientation is of great benefit in achieving accurate micro-sized features with excellent surface quality with either a static jet or a scanning jet for the Jet-ECM. On the other hand, the Jet-ECM with a horizontal jet orientation has a smaller material removal rate (MMR) than the ones with vertical jet orientations, which have almost the same MMR. It was found that an enhancement of machining localization and a reduction of MMR for horizontal jet electrochemical machining primarily results from an improvement of the mass-transfer field. The horizontal orientation of the jet is beneficial for the Jet-ECM processes to improve machining accuracy.

Study of Electrochemical Jet Machining Process

1996 ◽  
Vol 118 (4) ◽  
pp. 490-498 ◽  
Author(s):  
J. Kozak ◽  
K. P. Rajurkar ◽  
R. Balkrishna
Keyword(s):  
Turbine Blades ◽  
Electrochemical Machining ◽  
Small Diameter ◽  
Machining Process ◽  
Workpiece Material ◽  
Precise Control ◽  
Machining Rate ◽  
Jet Electrochemical Machining ◽  
The Relationship ◽  
Electrolyte Jet

Jet Electrochemical Machining (ECJM) employs a jet of electrolyte for anodic dissolution of workpiece material. ECJM is extensively used for drilling small cooling holes in aircraft turbine blades and for producing maskless patterns for microelectronics parts. ECJM process drills small diameter holes and complex shape holes without the use of a profile electrode. One of the most significant problems facing ECJM user industries is the precise control of the process. A theoretical analysis of the process and a corresponding model are required for the development of an appropriate control system. This paper presents a mathematical model for determining the relationship between the machining rate and working conditions (electrolyte jet flow velocity, jet length, electrolyte properties, and voltage) of ECJM. This model describes a distribution of electric field and the effect of change of conductivity of electrolyte (caused by heating) on the process performance. A maximum dissolution rate is determined from the allowable increase of electrolyte temperature. Experimental verification of theoretical results is also presented.

scholarly journals MODELLING OF THE OF ELECTROCHEMICAL MACHINING PROCESS

2007 ◽  
Vol 40 (18) ◽  
pp. 475-480
Author(s):  
Laurentiu SLATINEANU ◽  
Oana DODUN ◽  
Loredana SANTO ◽  
Margareta COTEATA ◽  
Adriana MUNTEANU
Keyword(s):  
Electrochemical Machining ◽  
Machining Process

scholarly journals Selected problems met in abrasive electrochemical machining process

Mechanik ◽  
2015 ◽  
pp. 103-105
Author(s):  
Adam Ruszaj ◽  
Sebastian Skoczypiec
Keyword(s):  
Electrochemical Machining ◽  
Machining Process
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