Abrasive Flow and Magnetic Flow Finishing

Abrasive machining processes

1. Abrasive Flow Finishing (AFF) & Magnetic Abrasive Finishing (MAF)

2. Overview of the presentation 16-09-2021 2

3. Overview AFF Process & Material Removal Process 16-09-2021 3

4. Material Removal Mechanism with Visco -Elastic Medium 16-09-2021 4

5. Classification of Abrasive Flow Finishing 16-09-2021 5

6. Unidirectional Abrasive Flow Finishing 16-09-2021 6

7. Two Way Flow Abrasive Flow Finishing 16-09-2021 7

8. Orbital Abrasive Flow Finishing 16-09-2021 8

9. Output Parameters Input Parameters 16-09-2021 9

10. Rheological Characterization Technique Application 16-09-2021 10

11. Advantages Limitations 16-09-2021 11

12. Introduction to Advanced Abrasive Finishing Processes 16-09-2021 12

13. Why Advanced Abrasive Finishing Processes ? 16-09-2021 13

14. Classification? Magnetic Field Assisted Advanced Abrasive Finishing Processes 16-09-2021 14

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16. Magnetic Abrasive Finishing 16-09-2021 16

17. Magnetic Abrasive Finishing….. 16-09-2021 17

18. MAF Working MAF Process: Plane Surface MAF Process: Cylindrical Surface 16-09-2021 18

19. MAF: Ring Type Dynamometer MAF: Surface Morphology 16-09-2021 19

20. Pros & Cons of MAF 16-09-2021 20

21. In Ultrasonic assisted magnetic abrasive finishing process (UAMAF) the ultrasonic vibration is introduced in the finishing zone to enhanced machining performance like improved surface finish, reduced finishing time etc. Ultrasonic assisted magnetic abrasive finishing process Ultrasonic-Assisted Magnetic Abrasive Finishing (UAMAF)   Magnetic Abrasive Finishing (MAF)     Mechanical Ultrasonic Vibrations   16-09-2021 21

22. Schematic diagram of the UAMAF process Arrangement of poles in electromagnet: (a) alternate north and south poles (b) circular magnetic lines of forces[15] UAMAF shows better percentage improvement ratio of surface roughness compared to MAF for relatively hard (61 HRC) workpiece material. The surface finishing by UAMAF process is mainly due to the micro-chipping and nano -scratching by abrasives due to ultrasonic vibrations. The material removal rate mainly depends on voltage and percentage weight of abrasives followed by the pulse on time of ultrasonic vibrations and RPM in case of UAMAF process. The temperature at work-brush interface found to be as low as 46°C, due to low working temperature, there is no possibility of thermal damage of the workpiece surfaces finished by UAMAF. Advantages of UAMAF 16-09-2021 22

23. The UAMAF process therefore, is a potential process to finish advanced materials like Ceramics. composite materials super alloys Which are used in modern manufacturing industries such as Aircraft. Aerospace. Medical. Electronics. Semiconductor. Tools and dies, etc. Potential and Applications 16-09-2021 23

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