peening

peening (countable and uncountable, plural peenings)

1. The hardening of a metal surface by hammering, or by blasting with shot
   • 1989, William Winchell, Realistic Cost Estimating for Manufacturing, page 121:

     Postmechanical operations include: (1) removal of excess weld metal, slag, and weld spatter, (2) rough or finish machining to dimensional requirements of the weldment, and (3) metal conditioning processes such as peening or roll planishing to reduce cracking tendencies physically and to increase weld bead strength.

peening

1. present participle and gerund of peen

• gnepine