MMA Welding
Manual Metal Arc (MMA) welding is an electric arc welding process in which the arc is struck between a covered metal electrode and the workpiece. The central metal electrode or core wire is consumable to provide the filler metal for the weld. Shielding of the weld pool is provided by the decomposition of some components of the electrode covering.
- MMA welding is the most flexible and one of the most widely-used arc welding processes
- The process uses an electric arc to fuse joint areas
- The consumable electrode consists of a metal core wire covered in a concentric clay-like mixture
- The process may be operated with an AC or DC power source
- This process requires highly skilled welders to produce good-quality welds
- The process does not require a separate shielding gas
Engine-driven generators can be used in the field as well as in the workshop, and in remote areas where mains power is not available, thereby extending MMA welding’s versatility.
With MMA welding, only a limited amount of weld metal can be deposited from one electrode. This means electrodes have to be replaced frequently, making it a less productive process than other welding methods.
Contact BOC
To order or for more information:
Phone us on | Email us at |
Visit us at | Or visit your local |
