New Guide to MIG Welding

A new Guide to Metal Inert Gas (MIG) Welding has now been published by Murex Welding Products. MIG is the most widely used of the arc welding processes, being suitable for everything from hobbies and small fabrications or repairs, through to large structures, shipbuilding and robotic welding. MIG can be used on a broad range of materials and thicknesses, and the latest SuperPulse technology enables MIG to give a finish that is similar to that obtained with TIG welding, but with the much faster speeds. The new guide discusses the principles of the process and gives practical advice on how to carry out MIG welding tasks. Ease of use is a major benefit of MIG in many applications, but speed is also an advantage as it is far quicker to lay down weld metal with MIG than TIG, MMA or gas welding.

Typical applications for MIG are discussed in the guide. These include automotive sub-assemblies and bodywork, ranging from conventional MIG for most bodywork, to heavy-duty MIG for lorry chassis and off-highway vehicles as well as lower-current MIG brazing of thin-gauge, high-strength steels. MIG is also used extensively in automotive and general repair workshops. Other non-automotive applications include the assembly of white goods and office furniture, the joining of structural steelwork for the construction industry, as well as repair work in ship repair yards, and welding tasks in the process industry for pipework and the fabrication of vessels.

Murex has been involved with MIG welding since its early commercialisation and the company is a a technology leader, launching new MIG welding sets with functions and features that set them apart from the competition. The latest development is SuperPulse MIG welding, which gives the advantages of pulse welding combined with the finish that is normally associated with TIG welding. With the level of control available in SuperPulse machines, the operative can effectively manage the welding parameters to 'mix and match' the modes of transfer to suit the material and the required combination of speed and quality. Another application for which MIG is increasing in popularity is brazing. This enables good strength to be achieved when joining thin materials - even down to 0.5mm.

Comments

Post a Comment

Popular posts from this blog

What is Class I Division 2?

Image
A Class I Division 2 is a location: (1) In which volatile flammable gases, flammable liquid-produced vapors, or combustible liquid-produced vapors are handled, processed, or used, but in which the liquids, vapors, or gases will normally be confined within closed containers or closed systems from which they can escape only in case of accidental rupture or breakdown of such containers or systems or in case of abnormal operation of equipment, or (2) In which ignitable concentrations of flammable gases, flammable liquid-produced vapors, or combustible liquid-produced vapors are normally prevented by positive mechanical ventilation, and which might become hazardous through failure or abnormal operation of the ventilating equipment. Class I Division 2 Classification Class I Division 2 refers to the ANSI/ISA 12.12.01 standard. This standard was previously UL1604 until UL recommended the newer ANSI/ISA standard be used and that all hazardous location products be certified under this standa
Read more

FUSE SIZING CONSIDERATIONS FOR HIGHER EFFICIENCY MOTORS

Image
When selecting the proper fuse for short circuit protection in motor starting applications, it is important to not only ensure that the fuse will not nuisance open during motor start up times, but also that the fuse will coordinate as required with overload relays. When sizing fuses between 125% and 150% of the motor nameplate current, several advantages, including ease of coordination with an overload device, a smaller disconnect, and increased short circuit protection from a lower fuse rating, can be achieved. However, if sizing at this level prevents the motor from starting, it may then be necessary to increase the fuse ampere rating and it then becomes important to know the NEC sizing limitations. As of June 1, 2016, the US Department of Energy has mandated that newly manufactured electric motors will need to meet NEMA Premium® efficiency standards. As motor efficiencies increase, motor locked rotor currents can also be expected to increase. In addition to this, with across-the-lin
Read more

7/8 16UN Connectors that Provide 600 Volts and 15 Amps

TURCK announces new A-Size 3 and 4-pin 7/8 16UN powerfast™ connectors that provide up to 600 Volts and 15 Amps of power. These IP67 rated connectors provide a modular wiring system designed to handle high current applications for machine power distribution, while providing resistance to vibration commonly associated with conveyors, motors and material handling applications. The cordsets are available with a tray rated, exposed run PVC flexlife ® cable, with or without STOOW rating, and 14 AWG wires that allow you to replace hard wiring with a robust, quick disconnect system that saves the time and money spent installing a conduit system. The A-Size powerfast line offers male and female, straight connectors, standard and custom lengths, and pigtails or extensions. To make the system complete, fully encapsulated mating receptacles, with 1/2”-14 NPT mounting threads are available.
Read more