MIG MAG Welding Techniques
MIG MAG Welding Techniques, The process of continuous seam welding is widely used for high productivity and its applicability to automation systems. It ‘an autogenous welding process in which the arc between the shell piece and the wire fuse. The device provides the progress of the wire to feed the bathroom with continuity (as opposed to the rod electrode which, when completed, should be replaced with a new rod). The protection gas is supplied directly to the molten bath, a gas holder.
Correct position and progress of welding.
For proper execution of the welding torch must be positioned correctly or, more accurately, the welding wire.
In the two charts below are shown the position and the advancement of welding technology on the basis of welding solid wire and cored wire on one joint angle.
Transfer mode of filler material.
By welding equipment, and therefore the setting of the parameters of voltage (V) and current (A), we can obtain different conditions of transfer of the material.
Spray Arc (Arc Spray): continuous stream of droplets, free. Used with high current values, good quality and good appearance, condition stable arc.
Globular Arc (Arc Globular): large drops free with lower frequency, obtained with current averages and detachment of the drop due to the magnetic field shear, welding is not pretty to see.
Short Arc (short arc): large drops which are detached for short circuit currents induced by low, used for welding in position and filling.
Advantages of MIG MAG welding
- You weld almost all types of ferrous and non ferrous materials also.
- It has a high quality of welds.
- Use in all positions of welding.
- Do not produce slag.
- High productivity.
- Technique easy to learn
Disadvantages of MIG – MAG
- Bulky equipment
- Reduced protection of the bath electrode compared to procedures or under flow
- Sensitive to drafts.
- High cost of gas protective.
Related posts:
