Author
Listed:
- NITISH KUMAR
(Department of Production & Industrial Engineering, National Institute of Technology, Jamshedpur 831014, Jharkhand, India)
- AMARESH KUMAR
(Department of Production & Industrial Engineering, National Institute of Technology, Jamshedpur 831014, Jharkhand, India)
- SUDHANSU RANJAN DAS
(Department of Production Engineering, Veer Surendra Sai University of Technology, Burla 768018, Odisha, India)
Abstract
In the present scenario, electrochemical arc machining (ECAM) (hybrid of electric discharge erosion and electrochemical dissolution) is an evolving procedure for difficulty in machining the materials due to constraints of existing processes. This research aims to investigate the machinability of Ni55.7Ti alloy through electrochemical arc drilling using molybdenum electrode. Electrolyte concentration (ethanol with ethylene glycol and sodium chloride), supply voltage, and tool rotation are considered as the variable factors to evaluate the ECAM performance characteristics in drilling blind hole operation concerning overcut (OC), tool wear rate (TWR) and materials removal rate (MRR). Consequently, response surface methodology is implemented for predictive modeling of various performance characteristics. Finally, multi-objective optimization through desirability function approach (DFA) has produced a set of optimal parameters to improve the productivity along with the accuracy, which is the prime requirement for the industrial applicability of the ECAM process. Results demonstrated that supply voltage is the influential key factor for improvement of machining rate. Scanning electron microscope (SEM) photographs revealed the development of heat affected zone (HAZ), white layer, melted droplet, craters, re-solidified material, ridge-rich surface and voids as well as cavities around the end-boundary surfaces of a blind hole. Composition analysis through energy dispersive spectroscopy (EDS) indicated the oxygen content on the machined surface because electrolyte breakdown causes oxidation to take place at elevated temperatures across the machining zone. Moreover, carbide precipitation like TiC was found in the melting zone of the drilled hole, as revealed by X-ray diffraction (XRD) analyses, which has the affinity to reduce the SMA properties in HAZ.
Suggested Citation
Nitish Kumar & Amaresh Kumar & Sudhansu Ranjan Das, 2023.
"Electrochemical Arc Drilling Of Nickel–Titanium Shape Memory Alloy Using Molybdenum Electrode: Investigation, Modeling And Optimization,"
Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 30(08), pages 1-20, August.
Handle:
RePEc:wsi:srlxxx:v:30:y:2023:i:08:n:s0218625x23500579
DOI: 10.1142/S0218625X23500579
Download full text from publisher
As the access to this document is restricted, you may want to search for a different version of it.
Corrections
All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:wsi:srlxxx:v:30:y:2023:i:08:n:s0218625x23500579. See general information about how to correct material in RePEc.
If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.
We have no bibliographic references for this item. You can help adding them by using this form .
If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Tai Tone Lim (email available below). General contact details of provider: http://www.worldscinet.com/srl/srl.shtml .
Please note that corrections may take a couple of weeks to filter through
the various RePEc services.