Welders

Description:

Welders or welding equipment are used for joining or fusing two or more materials, may be metal or plastics. The joining of materials is achieved by applying heat at the part of material where it has to be joined and applying filler at the interface section to bond the metals. The bonding filler is not required in the case of welding plastics. Electron beam, gas, electric arc are some of the energy sources needed for operating welders. Additionally, welders also consist of an electrode wire and a wire feed unit to feed the electrode at a constant rate.

Types of Welders:

The main types of welders are listed below:

Arc welders
MIG welders (Metal Inert Gas Welder)
TIG welders (Tungsten Inert Gas Welders)
AC welders
DC welders
Wireless feed welder
Seam welders
Stud welders
Stick welders
Spot welders

Advantages:

Welders offer the following main advantages:

Stronger attachment than using screw or rivet on metals
Fuses metals where fastening techniques is not possible or strong enough

Protective Measures:

The following are the main protective measures that have to be followed while using welders:

The blue arc produced by welders should be seen with proper eye protection as looking with naked eyes causes serious injuries
While operating welders at high temperature, protective cloth should be used as intensity of light from welders causes severe burns on skin

Applications:

Welders are used in all walks of industrial life from trucks and automobiles to stoves in homes. MIG welders are used for materials of different thickness and types. Seam welders are used for welding rolled metal sheet envelopes like tanks and vessels. Arc welders are used for welding steel, which are usually thicker than 18 gauges. Wire feed welders are used for thin material welding.