Resistance Welding is a welding technique in which the parts to be joined are held together under pressure and heat is produced by passing a current through the contact resistance formed between the two surfaces. The primary advantage of resistance welding is that no other materials are needed to create the bond, making this process extremely cost effective.
While there are many different types of resistance welding (e.g. spot and seam, projection, etc...), they mainly differ by the types and shapes of weld electrodes that are used to apply the pressure and conduct the current. The electrodes, are most commonly manufactured from copper based alloys due to its superior conductive properties. Electrodes are cooled by water flowing through cavities inside the electrode and the other conductive tooling of the resistance welding machine.
Hanson's resistance welding systems are designed and built for a wide range of industrial, automotive, and aerospace applications. Through automation, the action of these machines is highly controlled and repeatable allowing manufacturers to staff production readily.