Electromagnetic Welding Research Paper

Analytical Study of Field Shaper in Electromagnetic Welding

Rajesh.N,

Student,

Dept. of Mechanical Engineering

AMC Engineering college, Bangalore-560083

Email: [e-mail]

Shanthala K,

Research scholar,

Dept. of Mechanical Engineering,

AMC Engineering college, Bangalore-560083

Email: [e-mail]

Abstract- Electromagnetic Welding (EMW) is a promising and relatively new manufacturing technology which is advantageous over conventional welding in many ways. EMW is a type of impact joining process which makes use of rapid energy source to accelerate and cause collision between two different metals at very high velocities by removing the layer of oxidation. The important characteristic of this process is non-contact

The designer and manufacturer of automobiles, aerospace and railway are focusing on the environmental condition by reducing the air pollution [1]. They tried to reduce the consumption of energy and fuel by use of lighter weight metals, fuel cell power and hybrid gas as well as electrical power to drive the cars, planes and trains. Light weight aluminium material is the best selection for application in automobiles as well as in aerospace structure, shipbuilding, and railway. To improve fuel efficiency and control air pollution, the weight of automobiles and aerospace should be reduced. It is difficult to weld aluminium to other metal by conventional technique because of thermal and metallurgical incompatibility and a large difference in their melting points and due to formation of brittle inters metallic compounds. To obtain a good quality joint we need a special machine which belongs to the field of non conventional machines to do this kind of welding to obtain a good quality joint. Electromagnetic Welding has been the advanced tool for the industrial applications since it is suitable for welding of dissimilar materials (widely varying melting points and thickness). Also EMW is cold weld and there is no bulk melting of

The numerical simulation with field shaper is carried out. The results revealed that in contrast to the case without field shaper, it contributes to the obvious increase and uniform distribution of magnetic field.

2. As the effective area of field shaper increases, the bigger the uniform pressure area is, where the magnetic pressure decreases. The magnetic pressure decreases with the increase of relative diameter of field shaper.

3. The effect of field shaper on the distribution of magnetic pressure goes well with measurements of deformed workpiece material from experiments. REFERENCES

[1].Alle Navee Kumar, Mashuq-Un-Nabi, “Finite Element Modeling and Simulation of Electromagnetic Forces in Electromagnetic Forming Processes” 2009.

[2]. P. Zhang, “Joining Enabled by High Velocity Deformation,” Ph.D. Thesis, Ohio State University, Columbus, 2003.

[3]. C. Li, Z. Zhao, J. Li, Y. Wang, and Y. Yang, “Numerical Simulation of the Magnetic Pressure in tube Electromagnetic Bulging,” Journal of Materials Processing Technology, Vol. 123, No. 2, 2002, pp. 225-228.http://dx.doi.org/10.1016/S0924-0136