Influence of wire electrochemical machining parameters during fabrication of micro features

2017 ◽  
Vol 7 (2/3/4) ◽  
pp. 103
Author(s):  
B. Bhattacharyya ◽  
J. Kundu ◽  
S. Debnath
Keyword(s):  
Electrochemical Machining ◽  
Machining Parameters ◽  
Micro Features ◽  
Wire Electrochemical Machining

Electrochemical Micro Machining of Stainless Steel with Voltage Pulses

2009 ◽  
Vol 69-70 ◽  
pp. 219-224
Author(s):  
Hui Chen ◽  
Zhen Long Wang ◽  
Zi Long Peng ◽  
Ying Huai Dong ◽  
Wan Sheng Zhao
Keyword(s):  
Stainless Steel ◽  
Oxide Layer ◽  
Electrochemical Machining ◽  
Electrolyte Composition ◽  
Machining Parameters ◽  
Micro Machining ◽  
Short Pulses ◽  
Is Research ◽  
Micro Holes ◽  
Voltage Pulses

The purpose of this paper is to study electrochemical micro machining (ECM) technology on stainless steel. The micro machining of stainless steel is difficult by electrochemical machining, especially in machining deep micro holes, because of an oxide layer formed on the surface. To machining stainless steel, HF is usually used in electrolyte to destabilize the oxide layer. In this paper, ECM of stainless steel by applying short pulses in less toxic and corrosive electrolyte is research. The influence of electrochemical machining parameters such as voltage, current, electrolyte composition to machine stainless steel was investigated. The results showed that the oxide layer can be reduced by adding chloride and complex.

Multi-Response Optimization of Electrochemical Machining of Al-Si/B4C Composites Using RSM

2013 ◽  
Vol 3 (3) ◽  
pp. 42-56 ◽  
Author(s):  
Sadineni Rama Rao ◽  
G. Padmanabhan
Keyword(s):  
Surface Roughness ◽  
Process Parameters ◽  
Feed Rate ◽  
Electrolyte Concentration ◽  
Electrochemical Machining ◽  
Casting Process ◽  
Stir Casting ◽  
Machining Parameters ◽  
Electron Microscopic ◽  
Sem Images

The present work reports the electrochemical machining (ECM) of the aluminium-silicon alloy/boron carbide (Al-Si /B4C) composites, fabricated by stir casting process with different weight % of B4C particles. The influence of four machining parameters including applied voltage, electrode feed rate, electrolyte concentration and percentage of reinforcement on the responses surface roughness (SR) and radial over cut (ROC) were investigated. The process parameters are optimized based on the response surface methodology (RSM) and the optimum values for minimizing surface roughness and radial over cut are voltage 15.25 V, feed rate 1.0 mm/min, electrolyte concentration 13.56g/lit and percentage of reinforcement 7.36 wt%. The quality of the machined surfaces is studied by using scanning electron microscopic (SEM) images. The surface plots are generated to study the effect of process parameters and their interaction on the surface roughness and radial over cut, for the machined Al-Si/B4C composites.

Fabrication of Micro Structures by Ultra Short Voltage Pulse Electrochemical Machining

2009 ◽  
Vol 419-420 ◽  
pp. 813-816 ◽  
Author(s):  
Hui Chen ◽  
Zhen Long Wang ◽  
Zi Long Peng ◽  
Wan Sheng Zhao
Keyword(s):  
Voltage Pulse ◽  
Electrochemical Machining ◽  
Pulse Frequency ◽  
Machining Accuracy ◽  
Machining Parameters ◽  
Stray Current ◽  
Micro Fabrication ◽  
Micro Hole ◽  
Micro Structures ◽  
Machining Localization

. The purpose of this paper is to study the application of electrochemical machining (ECM) technology for the fabrication of micro structures. The stray current corrosion, i.e. machining localization is a critical obstacle to micro fabrication for ECM. To machine micro structures by electrochemical machining ultra short voltage pulse is used. The effects of electrochemical machining parameters such as voltage, pulse duration, pulse frequency, and electrolyte composition on the machining accuracy were studied. In experiments, a micro hole was machined on stainless steel with cylindrical and square electrodes to investigate these effects.

Machining Parameter Optimization of Aero-Engine Blade in Electrochemical Machining Based on BP Neural Network

2010 ◽  
Vol 121-122 ◽  
pp. 893-899 ◽  
Author(s):  
Zhi Yong Li ◽  
Hua Ji ◽  
Hong Li Liu
Keyword(s):  
Neural Network ◽  
Bp Neural Network ◽  
Electrochemical Machining ◽  
Machining Accuracy ◽  
Machining Parameters ◽  
Parameter Combination ◽  
Aero Engine ◽  
Engine Blade ◽  
Blade Machining ◽  
Machining Parameter

Because the process of blade in electrochemical machining(EMC) can be effected by many factors, such as blade shapes, machining electrical field, electrolyte fluid field and anode electrochemical dissolution, different ECM machining parameters maybe result in great affections on blade machining accuracy. Regard some type of aero-engine blade as research object, five main machining parameters, applied voltage, initial machining gap, cathode feed rate, electrolyte temperature and pressure difference between electrolyte inlet and outlet, have been evaluated and optimized based on BP neural network technique. From 3125 possible machining parameter combinations, 657 optimized parameter combinations are discovered. To verify the validity of the optimized ECM parameter combination, a serial of machining experiments have been conducted on an industrial scale ECM machine, and the experiment results demonstrates that the optimized ECM parameter combination not only can satisfy the manufacturing requirements of blade fully but has excellent ECM process stability.

A Theoretical Model for High Rate Electrochemical Machining

1973 ◽  
Vol 95 (4) ◽  
pp. 1003-1008 ◽  
Author(s):  
S. P. Loutrel ◽  
N. H. Cook
Keyword(s):  
Theoretical Model ◽  
Electrochemical Machining ◽  
Experimental Results ◽  
High Rate ◽  
Simplified Model ◽  
Complex Geometries ◽  
Machining Parameters ◽  
Computer Solution ◽  
Cutting Zone ◽  
Current Densities

A theoretical model for the process occurring in the cutting zone is developed. A computer solution to apply the model to an actual ECM situation is outlined. A simplified model and computer solution is described which can be used to predict machining parameters for complex geometries. For both models good correlation of experimental results is found in most cases. The application of classical electrochemistry to conditions where extreme current densities (5800 amps/cm2) are encountered is discussed.

Enhancement of mass transport in micro wire electrochemical machining

CIRP Annals ◽  
2012 ◽  
Vol 61 (1) ◽  
pp. 195-198 ◽  
Author(s):  
Yong-Bin Zeng ◽  
Qia Yu ◽  
Shao-Hua Wang ◽  
Di Zhu
Keyword(s):  
Mass Transport ◽  
Electrochemical Machining ◽  
Wire Electrochemical Machining
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