22-07-2010, 06:06 PM
Development of magneto abrasive flow machining process
Abrasive flow machining (AFM) is a relatively new process among non-conventional machining processes which usually have low material removal. Efforts are on for achieving higher material removal rates by applying different techniques. This article discusses applying a magnetic field around the workpiece in AFM for higher material removal rate. magneto abrasive flow machining (MAFM) is discussed. AFM has excellent capabilities for finish-machining of inaccessible regions of a component.
Experimental set-up
An experimental set-up for developing MAFM contained two cylinders containing the medium along with oval flanges , mainly for clamping of the fixture that contains the workpiece . The set-up is integrated to a hydraulic press. The flow rate of the medium was varied by changing the speed of the press drive and an auxiliary hydraulic cylinder allowed pressure change. The resistance provided by this cylinder is adjustable and can be set to any desired value with the help of a modular relief valve . The stroke length is controlled with the help of a limit switch. Two strokes make up one cycle.
The fixture
nylon,is used because it allows electromagnet poles such that the maximum magnetic pull occurs near the inner surface of the workpiece.
The electromagnet
the cylindrical workpiece was surrounded by the electromagnet. two poles that are surrounded by coils arranged are present in it.
The abrasive medium
a silicon-based polymer, hydrocarbon gel and the abrasive grains are used as the abrasives.
for the full report, visit this link:
http://sharingmatrixfile/14097609/magneto_abrasive_machining.pdf
Abrasive flow machining (AFM) is a relatively new process among non-conventional machining processes which usually have low material removal. Efforts are on for achieving higher material removal rates by applying different techniques. This article discusses applying a magnetic field around the workpiece in AFM for higher material removal rate. magneto abrasive flow machining (MAFM) is discussed. AFM has excellent capabilities for finish-machining of inaccessible regions of a component.
Experimental set-up
An experimental set-up for developing MAFM contained two cylinders containing the medium along with oval flanges , mainly for clamping of the fixture that contains the workpiece . The set-up is integrated to a hydraulic press. The flow rate of the medium was varied by changing the speed of the press drive and an auxiliary hydraulic cylinder allowed pressure change. The resistance provided by this cylinder is adjustable and can be set to any desired value with the help of a modular relief valve . The stroke length is controlled with the help of a limit switch. Two strokes make up one cycle.
The fixture
nylon,is used because it allows electromagnet poles such that the maximum magnetic pull occurs near the inner surface of the workpiece.
The electromagnet
the cylindrical workpiece was surrounded by the electromagnet. two poles that are surrounded by coils arranged are present in it.
The abrasive medium
a silicon-based polymer, hydrocarbon gel and the abrasive grains are used as the abrasives.
for the full report, visit this link:
http://sharingmatrixfile/14097609/magneto_abrasive_machining.pdf
