出典:Wiktionary
出典:『Wiktionary』 (2024/10/15 01:58 UTC 版)
peening (countable and uncountable, plural peenings)
出典:Wikipedia
出典:『Wikipedia』 (2011/05/01 17:59 UTC 版)
Peening is the process of working a metal's surface to improve its material properties, usually by mechanical means such as hammer blows or by blasting with shot (shot peening). Peening is normally a cold work process (laser peening being a notable exception). It tends to expand the surface of the cold metal, thereby inducing compressive stresses or relieving tensile stresses already present. Peening can also encourage strain hardening of the surface metal.
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口うるさいさま
ごみ
a plaything with which one trifles for pleasure
a syphilitic (patient)
a paste-pot
a wrinkle