brazing

/B R EY1 Z IH0 NG/
verb
  1. 1

    To join two metal pieces, without melting them, using heat and diffusion of a jointing alloy of capillary thickness.

  2. 2

    To burn or temper in fire.

noun
  1. 1

    A method of joining metals by using heat and a filler

Source: https://en.wiktionary.org/wiki/braze, https://en.wiktionary.org/wiki/brazing