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Things You Need To Know Before Hiring MMA Welders in Australia

22 Feb , 2016  

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

  • Condition: The resulting welding quality depends to a large extent on the condition of the MMA welder. A relatively new welder is preferable as it performs much better and an old one. An MMA welder still under manufacturer’s warranty will ensure better customer support in case of problems during its use.
  • Self-Cooling Options: Good MMA welders have a fan to provide cooling, allowing the welder to withstand high levels of heat generated during the welding process. One should check before hiring whether the MMA welder has a fan.
  • Insulated-Gate Bipolar Transistor (IGBT) Technology: IGBT technology is the latest in arc welding technology, making welders more portable. This is possible as they do not require large transformers. They have greater power control and overload protection features. One should ensure that the MMA welder being hired has IGBT technology. 
  • Pick-up and Delivery: Opting for a supplier offering pick-up and delivery facility for the MMA welder is preferable.

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.

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