Welding technology
Welding is one of the most important and fascinating technologies in metal processing and the basis of modern metal design. No other process joins metals as reliably and, when used correctly, offers the same consistent strength as the base material.
In our ELMAG online shop, you will find high quality gas-shielded welders, oxyfuel welders and electric welders to meet your needs. They all fulfil the requirements for professional and high-quality production. In addition to comprehensive product advice, we have an extensive stock programme for all products and wear parts.
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What welding processes are available?
MIG/MAG welding
Metal inert gas welding, also known as MIG (metal inert gas) or MAG (metal active gas) welding, is a widely used welding process with a consumable wire electrode in accordance with ISO 857-1. It is also known as MIG welding (metal inert gas).
In this process, the welding current set on the welding machine flows through the welding wire (also known as the electrode) to the workpiece and forms an arc. The arc melts the base material and the welding rod at the welding point and joins them together. A shielding gas is used to protect the welding point from oxidation. The welding wire is fed continuously to ensure a uniform weld seam.
Advantages:
- Very economical
- High welding speed
- High weld seam strength
- Low welding distortion
- Suitable for thin sheets
- Minimal rework
TIG/TIG welding
TIG welding (tungsten inert gas welding), also known as TIG welding (tungsten inert gas welding), is a gas welding process that can be used to join workpieces efficiently. The welding current flows through a non-melting tungsten electrode to the workpiece, where it forms an arc. The welding point is protected from oxidation by a shielding gas. In TIG welding, there are direct current and alternating current processes. TIG inverter welding units allow the use of different welding electrode shapes. This versatile process offers high flexibility and precise results.
Advantages
- Easy handling
- Filler metals only as required
- Very good arc control
- Arc free of spatter
- Very low scaling
- Flat, precise weld seams
- No reworking
MMA electrode welding
Metal arc welding with a consumable electrode in accordance with ISO 857-1, also known as manual metal arc welding in accordance with EN ISO 4063, is a widely used process.
In this process, the welding current set by the welding machine flows through the rod electrode to the workpiece and creates an arc. The arc melts the base material and the electrode at the welding point and joins them together. The electrode coating, which also melts during welding, protects the weld from oxidation. Once the molten metal has solidified, the resulting welding slag is removed.
This process enables metal parts to be welded and is used in various areas such as metalworking, construction and repair work.
Advantages
- Very economical
- Easy to transport
- Easy to use outdoors
- Simple, safe handling
- High weld seam strength
Oxyfuel welding/cutting
Gas fusion welding or cutting processes, also known as gas welding or gas cutting in accordance with DIN ISO 857-1, have various functions. Depending on the size of the weld seam, appropriate welding inserts are used in the welding process . The weld joint is heated until it melts. Welding rod is inserted by hand to fill the joint and create a weld bead. The gas flame adequately protects the weld seam from oxidation.
A cutting nozzle is used in the cutting process . The heat released by the cutting jet enables localised melting and oxidation of the material. The slag is removed by the cutting jet.
Both the welding and cutting processes play an important role in metal processing, construction and repair.
Advantages:
- Easy to use on construction sites
- high weld seam strength
- material heating, e.g. for bending
