Hierarchy classification:

1. top of the aat hierarchies
2. Activities Facet
3. Processes and Techniques (hierarchy name)
4. [processes and techniques by specific type]
5. [processes and techniques by material]
6. [metalworking and metalworking processes and techniques]
7. [metalworking processes and techniques]
8. [metal assembling processes and techniques]
9. welding
10. electric welding

Anotations

Scope note:

A form of electrical pressure welding in which the necessary heat is produced by a flow of current through the parts to be welded. Sufficient pressure to make the weld is applied simultaneously with the flow of current.