Patent ID: 11951592
Assignee: SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN
Field: Machine tools (Mechanical engineering)
Classification: CPC B  C | IPC B  C

Claim 0:
1. A shot-peening powder consisting of ceramic particles, comprising more than 95% by mass of beads with a sphericity greater than or equal to 0.75,
having a median size D50 greater than 50 μm and less than 1200 μm, and
having a value (D90−D10)/D50, or “S”, such that

S≤−0.126·ln(D50)+0.980  (1)

D10, D50 and D90 being particle sizes corresponding to the percentages equal to 10%, 50% and 90% by volume, respectively, on the cumulative particle size distribution curve of the powder, said particle sizes being ranked in ascending order and being expressed in μm.