ELECTROMAGNETIC FORMING AND IMPACT WELDING
A Thesis
Presented in Partial Fulfillment of the Requirements for
the degree Master of Science in the
Graduate School of The Ohio State University
By
Hemant M. Panshikar, B.Tech
******
The Ohio State University
2000
Dr. Glenn S. Daehn, Advisor
TABLE OF CONTENTS
See
Copyright Notice
Abstract
Dedication/Acknowledgements
Vita
List
of Tables
List
of Figures
Introduction
Chapter
1.
An Overview of Electromagnetic Forming
1.1. Introduction
1.2. Electromagnetic Forming:
Operation and Principle
1.3. Benefits of Electromagnetic
Forming Process
1.4. Modeling of EM forming
Process
1.5. A Rudimentary Analysis
of EM forming
2.
Modeling Software: Principles and Features
2.1. Introduction
2.2. SPH Fundamentals
2.3. Weaknesses of SPH and
GEM Improvements
2.4. Some Features of GEM
2.5. Validation of GEM
3.
Free Forming of Clamped Sheet
3.1. Introduction
3.2. Experimental Procedure
3.3. GEM Model of The Coupon
Test
3.4. Comparison of Results
3.4.1. Shape Evolution and Deformation
3.4.2. Deformation Velocity and Eddy Currents
3.4.3. Temperature Rise During The Process
3.5. Summary
4.
Free Launch of Flat Plate
4.1. Introduction
4.2. Experimental Procedure
4.3. Experimental Results
4.4. GEM Analysis: Flat
Plate
4.5. Slotted Plate: Experimental
Results and GEM Analysis
4.6. Summary
5.
Modeling of Impact Welding
5.1. Introduction
5.2. Explosive Welding Process
5.3. Literature Review
5.4. Experimental Basis
for The Impact Welding Simulations
5.5. Autodyn2D SPH Solver
and Impact Welding Model
5.6. Analysis and Comparison
of Results
5.7. Summary
Appendix
A
Appendix
B
References