SEMINAR BY SANTOSH BELLIKATTI USN 2GI02ME024 BATCH NO 12 INTRODUCTION What is Magneto Abrasive Flow Machining Magnetic abrasives are emerging as important finishing methods for metals and ID: 579406
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Slide1
MAGNETO ABRASIVE FLOW MACHINING
SEMINAR BY
SANTOSH BELLIKATTI
USN : 2GI02ME024
BATCH NO: 12Slide2
INTRODUCTION
What is Magneto Abrasive Flow Machining?
Magnetic
abrasives are emerging as important finishing
methods
for metals and
ceramics.
Extrude
Hone Corporation, USA, originally developed the AFM process in 1966
.
Modeling
of surface generation and process monitoring of AFM was conducted by Williams and
Rajurkar
during the late 1980sSlide3
PRINCIPLE
a) Off-state MR fluid particles
(
b) Aligning in an applied magnetic field Slide4Slide5
TYPES OF MACHINES
One-way machines
:
medium
chamber adapted to receive and extrude medium
unidirectionally
across the internal surfaces of a work piece Slide6
Two-way machines
:
The medium is extruded
,
hydraulically or mechanically
,
from the filled chamber to
the
empty chamber via the
restricted
passageway throughor past the work piece surface to be abraded.Slide7
Orbital Machines
:
While finishing
In orbital MAFM, the work piece is precisely oscillated in two or three dimensions
Orbital MAFM concept is to provide transitional motion to the work piece
Before start of finishing
Orbital MAFM Process Slide8
PROCESS PARAMETERS
1
.
Flow rate (volume) of
the medium.
2. Magnetic flux
density.
3. Number of
cycles.
4. Extrusion
pressure.
5. Viscosity of the
medium.
6. Grain size and concentration of the abrasive.7. Work piece material.
8. Flow volume of the
medium.
Slide9
ADVANTAGES
A
very high volume of internal
deburring
is possible.
MAFM
deburrs
precision gears.
MAFM polishes internal and external features of various components.
MAFM removes recast layer from components.
Effective on all metallic materials.
Controllability, repeatability and cost effectiveness.
Less Time Consumption.Slide10
LIMITATIONS
Abrasive
materials tend to get embedded, if the work material is ductile.
Require
closed environment.
Require
start up hole.Slide11
APPLICATIONS
Automotives
Medical implants
Manufacturing
industriesSlide12
REFERENCES
V.K. Jain - Advanced (Non-traditional) Machining Processes (e-book)
http://masters.donntu.edu.ua/2010/fimm/kondratenko/library/article9.htm
http://www.sciencedirect.com/science