'Recognizing the need is the primary condition for design.'
When testing welded materials for defects there are two main types of test that can be carried out. Destructive (breaking the weld appart) and Non-Destructive (not breaking the weld appart)
Below is a short description of some of the available techniques.
Resistance welding is conducted as follows:
Apply force and current through electrodes in contact with metal parts to be welded; resistance heat is generated at the interface of metal parts and makes a nugget, resulting in melt joint.
Though a large current flows, there is no danger of an electric shock because only low voltage is impressed.
Below is a short description for each type of welding used in industry
Below are a range of supporting documents to help you complete your welding assignments.