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Thanigaivelan, R.
- Study on Influence of Tool Design on Electrochemical Micromachining
Abstract Views :177 |
PDF Views:0
Authors
Affiliations
1 Dept. of Mechanical Engg., Muthayammal Engg. College, Rasipuram, IN
2 Dept. of Mechanical Engg., Sona College of Technology, Salem, IN
1 Dept. of Mechanical Engg., Muthayammal Engg. College, Rasipuram, IN
2 Dept. of Mechanical Engg., Sona College of Technology, Salem, IN
Source
Manufacturing Technology Today, Vol 10, No 6 (2011), Pagination: 3-10Abstract
Electrochemical Micromachining (EMM) is a promising technology for machining the microstructures and components. EMM appears to offer several advantages including better precision, wide range of materials could be machined and no stress on the machined workpiece. This paper is focused on development of an EMM system in which the micro structure and components are fabricated. Influences of tool electrode design (flat, conical with rounded and wedged electrode) on machining rate and overcut by varying the electrolyte concentration are discussed in detail. The wedged electrode produces higher machining rate and conical with rounded electrode improves the micro-hole accuracy by 2.2 times compared to flat electrode. Finally, applications of electrochemical micromachining are also discussed.Keywords
Electrode, Tool Design, Electrochemical Micromachining, Applications, Machining Set-Up.
- Study of Dominant Variables in Electrochemical Micromachining
Abstract Views :168 |
PDF Views:0
Authors
Affiliations
1 Dept. of Mechanical Engg., Muthayammal Engg. College, Rasipuram, IN
2 Dept. of Mechanical Engg., Sona College of Technology, Salem, IN
1 Dept. of Mechanical Engg., Muthayammal Engg. College, Rasipuram, IN
2 Dept. of Mechanical Engg., Sona College of Technology, Salem, IN
Source
Manufacturing Technology Today, Vol 9, No 1 (2010), Pagination: 22-28Abstract
The requirements for micro components in all emerging areas are rapidly increasing. To meet this demand, micro machining is considered as one of the key technologies for the production of micro parts and components. Among the various capable processes, electrochemical micro machining is considered due its advantages of accuracy, no electrode wear and various ranges of materials that can be machined. An experimental set-up for Electrochemical Micro machining (EMM) is developed, which consists of various elements. This paper focuses on experimental study of dominant variables like pulse on-time, current, voltage, and electrolyte concentration on machining speed and overcut when machining 304 stainless steel. From the experimental results, it is evident that the machining speed reaches maximum at a pulse on-time of 30 ms. The most effective range of pulse on-time and electrolyte concentration can be considered as 25-30 ms and 0.23-0.29 mole/l, which gives moderate machining speed and lower overcut.
- Study on Effect of Evaporative Cooled Turning Tool with Water Soaked Banana Fiber for Machining Ti–6Al-4V Alloy
Abstract Views :275 |
PDF Views:1
Authors
R. Thanigaivelan
1,
R. Arunachalam
2,
N. Natarajan
3,
Abdu Rahoof
1,
Jishnu Sanjay
1,
Manish Kumar
1
Affiliations
1 Mahendra Engineering College (Autonomous), Mallasamudrum, Namakkal Dist, IN
2 Dept. of Mech and Industrial Engg., Sultan Qaboos University, Sultanate of Oman, OM
3 Department of Mechanical Engineering, Muthayammal Engineering College (Autonomous), Rasipuram, Namakkal Dist, IN
1 Mahendra Engineering College (Autonomous), Mallasamudrum, Namakkal Dist, IN
2 Dept. of Mech and Industrial Engg., Sultan Qaboos University, Sultanate of Oman, OM
3 Department of Mechanical Engineering, Muthayammal Engineering College (Autonomous), Rasipuram, Namakkal Dist, IN
Source
Manufacturing Technology Today, Vol 17, No 12 (2018), Pagination: 21-25Abstract
The application of Ti–6Al-4V alloy in the fields of biomedical and aerospace industries attracts the manufacturing engineers to understand the behavior of alloy during machining. Ti–6Al-4V alloy posses high specific strength and corrosion resistance and besides its advantages they poses challenges in machining due its low thermal conductivity nature. The heat generated during machining is dissipated through cooling medium and cutting tool. Considering the situation detailed experiments are planned for turning of Ti–6Al-4V alloy with varies cutting speed, feed rate and depth of cut. The cutting tool is cooled with the process of evaporative cooling technique by using the water soaked banana fiber pad along with fan and flooded coolant. This method dissipates 39.51% of heat generated during cutting operation at parameter combination of 1200 rpm cutting speed, 1.5mm/rev feed rate and 0.6 mm depth of cut. The lowest average surface roughness (Ra) is recorded at parametric combination of 1200 rpm cutting speed, 0.25mm/rev feed rate and 0.6 mm depth of cut for banana fiber cooled tool. The use of banana fiber resulted in lesser Ra of 0.42μm. Further studies with multi-pad evaporative cooling facilitate for increased tool heat dissipation.Keywords
Banana Fiber, Evaporative Cooling, Ti-6Al-4V Alloy, Surface Roughness, Cutting Temperature.References
- Suhas S Joshi; Machinability of titanium alloys under various machining environments, International conference and exhibition on Advances in Light weighting Technology Design, Materials, Manufacturing Applications, 20- 22 November 2012, Pune, INDIA
- Sartori, S; Ghiotti, A ; Bruschi, S: Solid Lubricantassisted Minimum Quantity lubrication and Cooling strategies to improve Ti-6Al-4V machinability in finishing turning, ‘Tribology International’, vol. 118, 2018, 287-294.
- Munish Kumar Gupta; Sood, PK; Vishal S Sharma: Optimization of machining parameters and cutting fluids during nanofluid based minimum quantity lubrication turning of titanium alloy by using evolutionary techniques, Journal of Cleaner Production, vol. 135, no.1, 2016, 1276-1288.
- Hamed Hassanpour; Mohammad H.Sadeghi; Amir Rasti; Shaghayegh Shajari: Investigation of surface roughness, microhardness and white layer thickness in hard milling of AISI 4340 using minimum quantity lubrication, ‘Journal of Cleaner Production’, vol. 120, 2016, 124-134.
- Bagherzadeh, A; Budak, E: Investigation of machinability in turning of difficult-to-cut materials using a new cryogenic cooling approach, ‘Tribology International’, vol. 119, 2018, 510-520.
- Salah Gariani; Islam Shyha; Fawad Inam; Dehong Huo: Experimental analysis of system parameters for minimum cutting fluid consumption when machining Ti-6Al-4V using a novel supply system, ‘International Journal of Advanced Manufacturing Technology’, vol. 95, 2018, 2795–2809.
- Salman Pervaiz ; Ibrahim Deiab; Essam Wahba; Amir Rashid; Mihai Nicolescu: A numerical and experimental study to investigate convective heat transfer and associated cutting temperature distribution in single point turning ‘International Journal of Advanced Manufacturing Technology’ vol. 94, no.1-4, 2018, 897-910.
- Salman Pervaiz; Amir Rashid; Ibrahim Deiab; Cornel Mihai Nicolescu: An experimental investigation on effect of minimum quantity cooling lubrication (MQCL) in machining titanium alloy (Ti6Al4V), ‘International Journal of Advanced Manufacturing Technology’, vol. 87, 2016, 1371-1386.
- Syed Waqar Raza; Salman Pervaiz; Ibrahim Deiab: Tool Wear Patterns When Turning of Titanium Alloy Using Sustainable Lubrication Strategies, International Journal of Precision Engineering and Manufacturing, vol. 15, no. 9, 1979-1985.
- Ricardo R.Moura; Marcio B.da Silva; Alisson R.Machado; Wisley F.Sales: The effect of application of cutting fluid with solid lubricant in suspension during cutting of Ti-6Al-4V alloy, ‘Wear’, vol. 332–333, 2015, 762-771.
- Liberty, J.T; Ugwuishiwu, B.O; Pukuma, S.A; Odo, C.E: Principles and Application of Evaporative Cooling Systems for Fruits and Vegetables Preservation, ‘International Journal of Current Engineering and Technology’, vol. 3, no. 3, 2013, 1000-1006
- Influence of Mixed Electrolyte in Electrochemical Micromachining on SS316L
Abstract Views :231 |
PDF Views:1
Authors
Affiliations
1 Muthayammal Engineering College, Rasipuram, IN
2 Vinayaka Missions Kirupananda Variyar Engineering College, Salem, IN
1 Muthayammal Engineering College, Rasipuram, IN
2 Vinayaka Missions Kirupananda Variyar Engineering College, Salem, IN
Source
Manufacturing Technology Today, Vol 20, No 7-8 (2021), Pagination: 16-25Abstract
The Electrochemical Micromachining (EMM) is an micromachining techniques for machining electrically conducting, tough and difficult to machine materials with suitable machining parameter combinations. In EMM, an electrolyte characteristic shows significant effect on output characteristics namely Material Removal Rate (MRR), Overcut (OC) and Taper OC. Hence in this research mixed electrolyte along with varying concentration, machine voltage and duty cycle are taken as key input parameters. Sodium nitrate and oxalic acid used as an electrolyte between tool and work piece. The MRR, OC and taper overcut are significantly influenced by the electrolyte type. Optimization of multiple performance characteristics were analyzed by CRiteria Importance Through Intercriteria Correlation (CRITIC) and Simple Additive Weighting (SAW) methods. The mixed electrolyte shows higher MRR, lesser OC and lesser taper OC and the optimal parameter combination is mixed electrolyte with 20g/l, 8V and 85% duty cycle and micro hole circumference is analysed using the SEM pictures.Keywords
Oxalic Electrolyte, Sodium Nitrate, CRITIC Method, SAW Method, Taper Overcut.References
- Ao, S., Li, K., Liu, W., Qin, X., Wang, T., Dai, Y., & Luo, Z. (2020). Electrochemical micromachining of NiTi shape memory alloy with ethylene glycol– NaCl electrolyte containing ethanol. Journal of Manufacturing Processes, 53, 223-228.
- Biswas, T. K., Chaki, S., & Das, M. C. (2019). MCDM Technique Application to the Selection of an Indian Institute of Technology. Operational Research in Engineering Sciences: Theory and Applications, 2(3), 65-76.
- Diakoulaki, D., Mavrotas, G., & Papayannakis, L. (1995). Determining Objective Weights in Multiple Criteria Problems: The Critic Method. Computers & Operations Research, 22(7), 763-770.
- Keshavarz, A., & Parang, Z., (2013). The Effect of Sulfuric Acid, Oxalic Acid, and their Combination on the Size and Regularity of the Porous Alumina by Anodization. Journal of Nanostructure in Chemistry, 2193-8865-3-34.
- Kunar, S., Mahata, S., & Bhattacharyya, B. (2018). Influence of Electrolytes on Surface Texture Characteristics Generated by Electrochemical Micromachining. Journal of Micromanufacturing, 1(2), 124-133. https://doi.org/10.1177/2516598418765355
- Liu, W., Zhang, H., Luo, Z., Zhao, C., Ao, S., Gao, F., & Sun, Y. (2018). Electrochemical Micromachining on Titanium Using the NaClcontaining Ethylene Glycol Electrolyte. Journal of Materials Processing Technology, 255, 784-794.
- Mukhametzyanov, I., & Pamucar, D. (2018). A sensitivity analysis in MCDM problems: A statistical approach. Decision making: applications in management and engineering, 1(2), 51-80.
- Soundarrajan, M., & Thanigaivelan, R. (2018). Investigation on Electrochemical Micromachining (ECMM) of Copper Inorganic Material Using UV Heated Electrolyte. Russian Journal of Applied Chemistry, 91, 1805-1813. https://doi.org/10.1134/S1070427218110101
- Soundarrajan, M., & Thanigaivelan, R. (2021) Electrochemical Micromachining of Copper Alloy through Hot Air Assisted Electrolyte Approach. Russian Journal of Electrochemistry, 57, 172–182. https://doi.org/10.1134/S1023193521020117
- Thanigaivelan, R., Arunachalam, R. M., Karthikeyan, B., & Loganathan, P. (2013). Electrochemical Micromachining of Stainless Steel with Acidified Sodium Nitrate Electrolyte. Procedia CIRP, 6, 351-355.
- Vinod Kumaar, J. R., Thanigaivelan, R., & Dharmalingam, V. (2019). A Study on the Effect of Oxalic Acid Electrolyte on Stainless Steel (316L) through Electrochemical Micromachining. Advances in Micro and Nano Manufacturing and Surface Engineering, Springer, Singapore, 93-103.
- Vinod Kumaar, J. R., & Thanigaivelan, R. (2020). Performance of Magnetic Field-assisted Citric Acid Electrolyte on Electrochemical Micro-machining of SS 316L. Materials and Manufacturing Processes, 35(9), 969-977. https://doi.org/10.1080/10426914.2020.1750630
- Zavadskas, E. K., & Turskis, Z. (2011). Multiple Criteria Decision Making (MCDM) Methods in Economics: an overview. Technological and Economic Development of Economy, 17(2), 397-427.
- Zhang, H., Ao, S., Liu, W., Luo, Z., Niu, W., & Guo, K. (2017). Electrochemical Micro-machining of High Aspect Ratio Micro-tools Using Quasisolid Electrolyte. The International Journal of Advanced Manufacturing Technology, 91, 2965-2973.