When one thinks about welding, the idea that probably comes to mind is that of using heat to melt two pieces of metal in order to join them and create a single part. While that is a correct description of a welding process, it is not the only one. Another type of welding is resistance welding.
So what is resistance welding? How does it differ from the process most people probably think of when they hear the term welding?
The resistance welding process, also sometimes called electric resistance welding, involves the application of pressure and the conduction of a strong electrical current to heat and melt metals so that they can be joined together. Because no other materials are required to create the bond, the process is highly cost-effective.
One can use a resistance welding machine for a number of different applications in the automotive, aerospace, and other industries. A reason for its versatility is that there are several types of resistance welding, with the major difference between them being the type and shape of the weld electrodes used. These resistance welding electrodes are used to apply pressure and conduct the electrical currents. Typically, they’re made from copper due to copper’s excellent conductive qualities, and they’re cooled by water.
Each type of resistance welding has its own specific welding application. In effect, each type is the optimal one for a particular situation.
There are always pros and cons to any process. The advantages of resistance welding are that it can join both similar and dissimilar metals; it’s highly automated, efficient, and cost-effective; it produces little waste and pollution; and there’s no need for filler metals or extraneous materials.
Drawbacks include complex, high-cost machinery; high use of electrical power; and limitations in thickness of work pieces.
If you need resistance welding services, Sustainment can help you find a local resistance welding company that can meet your needs. With our powerful, user-friendly search feature, you can find a vetted, reputable resistance welder near you, which will save you time and let you focus on other aspects of your business.
Welding is a fusion process in which two objects, usually metals, are permanently joined. What is arc welding then?...
What is electroplating? Despite the high-tech sounding name, electroplating has actually been around since the early 18th century…