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What is the difference between welding, brazing and welding?

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What is the difference between welding, brazing and welding?

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2020-11-27

What is the difference between welding, brazing and welding?

Welding, brazing, and welding are all methods of combining two or more metals with other selected materials. These are also the methods used to fill the gaps in metal parts.

1. Welding, brazing and welding are all methods of combining two or more metals with other selected materials. These are also the methods used to fill the gaps in metal parts.
In welding, the two metals (or thermoplastics) must be similar. For example, copper cannot be welded to steel. Welding uses high temperatures to melt and join two metal parts. Filler metal is also often used. When completed correctly, the finished weld will be as strong as the surrounding metal. However, if this process is not performed and excessive heat is applied to the welder, the properties of the metal will change and the welding performance will deteriorate. There are several different types of welding such as metal inert gas (MIG), electric arc, electron beam, laser, friction stir. Welding is also widely used to melt and cut large metal structures.


2. Brazing joins two metals by heating and melting a filler (alloy) that joins and binds the two metals. Obviously, the melting temperature of the filler should be lower than the melting temperature of the metal sheet. Brazing can join a variety of metals such as aluminum, silver, copper, gold and nickel. Flux is often used during brazing. This is a liquid that promotes wetting and allows the filler to flow through the connecting metal parts. In addition, since oxide parts can be cleaned, filler parts and metal parts can be combined more closely. In addition, flux is used for soldering to clean metal surfaces.
Suitable brazed joints are stronger than welded joints, but not as strong as welded joints. Brazing has little effect on the two metal parts.
Welding is a low temperature simulation of brazing. .. Metals that can be welded include gold, silver, copper, brass and iron. A filler called solder melts. After curing, it adheres to the metal part and connects. This combination is not as strong as brazing or welding. Solder was primarily made of lead, but environmental concerns have led the industry to look for lead-free alternatives.
Flux is used for brazing in the same way that it cleans metal surfaces with brazing or welding, allowing solder to easily flow to the components to be connected.
Welding is also used to connect electrical components. The joints do not have to be strong or structural, but the parts must be electrically connected with conductive solder.

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