Welding

DWJ Narzędziownia CNC

You can watch us:

Welding metals – joining materials permanently

Welding is the process of joining materials, most commonly metals and their alloys, by localised plasticisation or melting. This produces a permanent joint that has a strength similar to that of the base material.

What are the basic methods of welding?

There are a number of different welding methods, differing in the heat source, the type of accessory material and the way the weld is protected. The most common methods are:

Arc welding:

TIG (Tungsten Inert Gas): Electric arc welding in an inert gas such as argon. A non-fusible tungsten electrode is used.
MIG/MAG (Metal Inert/Active Gas): Electric arc welding with an inert or active gas (e.g. CO2). The electrode is a fusible wire.

Resistance welding:

Welding: The joining of metals by the passage of electric current through the contacting surfaces, which causes them to heat up and fuse together.
Plasma welding: Similar to TIG, but using high temperature plasma.
Laser welding: The joining of materials using a concentrated laser beam.

Steps in the welding process:

Preparation: Includes cleaning of the surface, selection of a suitable welding method and additional materials.
Establishing an electric arc or heating the weld: Depends on the welding method.
Melting of base material and filler metal: Welding pool is formed.
The formation of the weld: Once the weld pool has cooled down, a weld is formed joining the workpieces.
Quality control: Checking the strength of the weld and its compliance with technical requirements.

Welding advantages:

Durability of connections: Welded joints are characterised by high durability.
Versatility: Various materials and constructions can be joined.
Speed: Many welding processes are automated, speeding up production.

Welding applications:

Construction industry: Joining of steel construction elements, pipelines.
Automotive industry: Manufacture of car bodies, frames, exhaust components.
Shipbuilding industry: Construction of ship hulls.
Energy: Tank and pipeline construction.

DWJ

Welding is a reliable method of joining materials that is used in many industries. Thanks to its versatility and high productivity, welding is one of the most important manufacturing processes.