Manual Metal Arc (MMA) welding is the most flexible and one of the most widely used arc welding process. It involves striking an arc between a covered metal electrode and a workpiece. The heat of the arc melts the parent metal and electrode, mixing together on cooling to form a continuous solid mass. The central metal electrode or core wire acts as a consumable, providing the filler metal for the weld. MMA welding can be used to join most steels like stainless steel and cast iron and many non-ferrous materials. It is the preferred method to weld mild and high-strength carbon steels.
Since the MMA welding process involves using a consumable welding stick as the electrode, it is popularly known as ‘stick welding’. Though most professional welding service providers and engineering firms have their welders, it is common to see people hiring a welder for short-term welding work. It is ideal for home and DIY projects where welding is done occasionally or for a limited time.
Things to Consider Before Hiring MMA Welders in Australia
The technical specifications and duty cycles of the MMA welder should also be considered before finalisation. Many variants are available in Australia, meeting different budgets and covering all kinds of requirements.