Swedish term (edited): kulpenats

cf
"Shot peening is a process used as a decorative finish and/or to modify mechanical properties of metals. It entails impacting a surface with shot (round metallic particles) with force sufficient to create dimples and with enough shot that those dimples overlap. It is similar to sand blasting, except that it operates by the mechanism of plasticity rather than abrasion: each particle functions as a ball-peen hammer. In practice, this means that less material is removed by the process, and less dust created"
http://en.wikipedia.org/wiki/Shot_peening

"Kulpening
Kulpening är en etablerad metod som används för att öka livslängden hos metallkomponenter utsatta för dynamiska belastningar.
Kulpening förhindrar också sprickbildning orsakad av spänningskorrosion"
http://www.cbcytfinish.se/htmldoc/kulpening.htm