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Magnetic Field Assisted EDM: New Horizons for Improved Surface Properties

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Abstract

The current research study for hybrid machining of Al-based metal matrix composites (MMCs) employs magnetic field coupled traditional electrical discharge machining (EDM) to address the manufacturing demands in aeronautics, automobile, medical equipment, etc. The input processing parameters, for instance, magnetic field intensity, pulse-on/off duration, peak current, variant of electrodes as well as workpiece were evaluated to determine their after-effects on the responses in terms of microhardness (MH) and recast layer formation while machining of Al-SiC composites. The experimental results show 22% decrease in the surface microhardness values and thinner recast layer formation at magnetic field coupled higher spark energy. The results demonstrate the process stability and exhibit a good accord with experimental verification.

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Abbreviations

CNC:

Computer Numeric Control

MRR:

Material Removal Rate

dB:

decibels

MH(HV):

Microhardness (Vickers Pyramid Number)

TWR:

Tool Wear Rate

MFAEDM:

Magnetic Field Assisted Electrical Discharge Machining

RC:

RECAST

B(T):

Magnetic Field (tesla)

EDM:

Electrical Discharge Machining

I(A):

Current (amperes)

W/P:

Workpiece

R1:

Repetition-1

R2:

Repetition-2

DF:

Degrees of Freedom

Seq SS:

Sequential Sums of Squares

Adj SS:

Adjusted Sums of Squares

Adj MS:

Adjusted Mean Square

p-value:

Probability

Al-SiC:

Aluminum-Silicon Carbide

J (vector quantity):

Current density

F (vector quantity):

Lorentz Force

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Acknowledgements

The authors would like to express special thanks to IKG Punjab Technical University, Kapurthala for supporting this research work.

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Authors and Affiliations

  1. Research Scholar, IKGPTU, Kapurthala, India

    Preetkanwal Singh Bains

  2. Department of Mechanical Engineering, BCET, Gurdaspur, Punjab, India

    Sarabjeet Singh Sidhu

  3. St. Soldier Institute of Engineering and Technology, Jalandhar, Punjab, India

    H. S. Payal

Authors
  1. Preetkanwal Singh Bains
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  2. Sarabjeet Singh Sidhu
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  3. H. S. Payal
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Corresponding author

Correspondence to Preetkanwal Singh Bains.

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Bains, P.S., Sidhu, S.S. & Payal, H.S. Magnetic Field Assisted EDM: New Horizons for Improved Surface Properties. Silicon 10, 1275–1282 (2018). https://doi.org/10.1007/s12633-017-9600-7

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  • DOI: https://doi.org/10.1007/s12633-017-9600-7

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