swage

 
Pronunciation: /sweɪdʒ/

noun

  • 1a shaped tool or die for giving a desired form to metal by hammering or pressure.
  • 2a groove, ridge, or other moulding on an object.

verb

[with object]
  • shape (metal) using a swage, especially in order to reduce its cross section: (as noun swaging) the instrument has a swaging head and a pulsed action which flattens the rivet in a series of rolling motions
  • join (metal pieces) together by this process: eye-ends in corrosion-resisting steel swaged on aircraft control cables

Origin:

late Middle English (in swage (sense 2 of the noun)): from Old French souage 'decorative groove', of unknown origin