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1. ELECTRIC DISCHARGE DIAMOND GRINDING Submitted by-ANIRUDH THIRIVEEEDHI (232311002) Guided by – Dr.LEELADHAR NAGDEVE

2. INTRODUCTION Electric discharge diamond grinding is a machining process that combines two key elements: electrical discharge machining (EDM) and Diamond grinding . EDM is a “Non-traditional machining process “. It uses electrical discharges to remove material from a workpiece, and diamond grinding involves using grinding wheels with diamond abrasive particles for precision grinding.

3. Electric discharge diamond grinding is a machining process that combines two key elements: electrical discharge machining (EDM) and Diamond grinding . EDM is a “Non-traditional machining process “. It uses electrical discharges to remove material from a workpiece, and diamond grinding involves using grinding wheels with diamond abrasive particles for precision grinding.

4. Electric discharge diamond grinding is a machining process that combines two key elements: electrical discharge machining (EDM) and Diamond grinding . EDM is a “Non-traditional machining process “. It uses electrical discharges to remove material from a workpiece, and diamond grinding involves using grinding wheels with diamond abrasive particles for precision grinding.

5. Electric discharge diamond grinding is a machining process that combines two key elements: electrical discharge machining (EDM) and Diamond grinding . EDM is a “Non-traditional machining process “ . It uses electrical discharges to remove material from a workpiece, and diamond grinding involves using grinding wheels with diamond abrasive particles for precision grinding.

6. Diagram of an Electric Discharge Diamond Grinding

7. working principle of eddg Picture Source :Advances in Engineering Design,Select Proceedings of FLAME 2018

8. working principle of eddg T he metal bond in the grinding wheel is removed by electric sparks. The Abrasive is used to grind the workpiece. Electric Spark is generated for localised melting and vaporization of workpiece material. Picture Source :Advances in Engineering Design ,Select Proceedings of FLAME 2018

9. working principle of eddg T he metal bond in the grinding wheel is removed by electric sparks. The Abrasive is used to grind the workpiece. Electric Spark is generated for localised melting and vaporization of workpiece material. Picture Source :Advances in Engineering Design ,Select Proceedings of FLAME 2018

10. working principle of eddg T he metal bond in the grinding wheel is removed by electric sparks. The Abrasive is used to grind the workpiece. Electric Spark is generated for localised melting and vaporization of workpiece material. Picture Source :Advances in Engineering Design ,Select Proceedings of FLAME 2018

11. 1 Applications It is used in Grinding Thin Sections

12. 2 Applications Grinding of High Hardness materials such as Cermates , super alloys & metal matrix composites.

13. Parameters used in EDDG WHEEL SPEED - The rotation speed of the diamond grinding wheel is essential for controlling the grinding action and material removal .. CURRENT - It affects the spark energy and material removal rate. Higher currents result in more aggressive material removal . PULSE FREQUENCY – It is the rate at which electrical discharges occurs & affects MRR and surface finish. It can be adjusted to control the spark's timing and location . DIAMOND PARTICLE SIZE – The size of the diamond particles effects the surface finishing of the work piece. The smaller the size of abrasive it is better for higher surface finish

14. Parameters used in EDDG WHEEL SPEED - The rotation speed of the diamond grinding wheel is essential for controlling the grinding action and material removal .. CURRENT - It affects the spark energy and material removal rate. Higher currents result in more aggressive material removal . PULSE FREQUENCY – It is the rate at which electrical discharges occurs & affects MRR and surface finish. It can be adjusted to control the spark's timing and location . DIAMOND PARTICLE SIZE – The size of the diamond particles effects the surface finishing of the work piece. The smaller the size of abrasive it is better for high surface finish. higher surface finish

15. Parameters used in EDDG WHEEL SPEED - The rotation speed of the diamond grinding wheel is essential for controlling the grinding action and material removal .. CURRENT - It affects the spark energy and material removal rate. Higher currents result in more aggressive material removal . PULSE FREQUENCY – It is the rate at which electrical discharges occurs & affects MRR and surface finish. It can be adjusted to control the spark's timing and location . DIAMOND PARTICLE SIZE – The size of the diamond particles effects the surface finishing of the work piece. The smaller the size of abrasive it is better for higher surface finish.

16. Parameters used in EDDG WHEEL SPEED - The rotation speed of the diamond grinding wheel is essential for controlling the grinding action and material removal .. CURRENT - It affects the spark energy and material removal rate. Higher currents result in more aggressive material removal . PULSE FREQUENCY – It is the rate at which electrical discharges occurs & affects MRR and surface finish. It can be adjusted to control the spark's timing and location . DIAMOND PARTICLE SIZE – The size of the diamond particles effects the surface finishing of the work piece. The smaller the size of abrasive it is better for high surface finish . The smaller the size of abrasive the better for higher surface finish

17. Referred from : Recent Trends in Non –Traditional machining processes by Raja P

18. Referred from : Recent Trends in Non –Traditional machining processes by Raja P

19. LITERATURE REVIEW A combination of two machining processes (i.e., a hybrid process) has a potential to improve process performance. The paper reports on experimental investigation of the electrical discharge diamond grinding process that combines mechanical grinding with electrical discharge machining. In this process, the workpiece is simultaneously subjected to heating, by electrical sparks bridging the gap between the metallic wheel bonding material and the work, and abrasion by diamond grains. The effect of current, voltage, pulse-on-time and duty factor on the grinding forces and the material removal rate while machining high speed steel workpiece, are investigated. The spark discharges facilitate grinding by thermally softening the work material in the grinding zone, and consequently decreasing the normal force. It is observed that the material removal rate increases with an increase in current and pulse on-time, while it decreases with an increase in voltage and duty factor. These independent parameters are also found to significantly influence the grinding forces. ELECTRICAL DISCHARGE DIAMOND GRINDING OF HIGH SPEED STEEL S. K. Choudhury , V. K. Jain & M. Gupta

20. References "Electric Discharge Diamond Grinding of Polycrystalline Diamond" Authors: T. Kuriyagawa , Y. Takezawa , and S. Kuroda. Published in the Journal of Materials Processing Technology in 2002. " Experimental Investigation of Electric Discharge Diamond Grinding of Polycrystalline Diamond (PCD) Tool" 1. Authors: R. Srinivas, M. Pradeep Kumar, and V. K. Jain. 2. Published in the Procedia CIRP journal in 2014. "A Study on Electric Discharge Diamond Grinding of Cemented Carbide" Authors: Y. S. Tarng , C. M. Yan, and H. H. Shih. Published in the International Journal of Machine Tools and Manufacture in 2006. "Review on Electrical Discharge Diamond Grinding" Authors: R. Ravi, B. Saravanan, and S. Kumarave . Published in the Materials Today: Proceedings journal in 2018. “Optimization of Electro-Discharge Diamond Surface Grinding Process Parameters with Multiple Performance Characteristics of Ti-6Al-4V Using Grey-Taguchi Approach “ Authors : Manoj Modi & G.Aggarwal . Published in the Research gate portal.