Transverse ultrasound peening of blades on a rotor

US6837085B2 · kind B2 · utility

Assignee

• SNECMA Moteurs · FR

Inventors

• Benoît Jean Henri Berthelet · Maisons-Alfort, FR
• Gerard Gueldry · Le Mée-sur-Seine, FR
• Claude Marcel Mons · Savigny-le-Temple, FR
• Marie-Christine Ntsama-Etoundi · Charenton-le-Pont, FR

Key dates

• Filing date: Sep 20, 2001
• Grant date: Jan 4, 2005
• Expiry date: Sep 20, 2021

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F01D5/286
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

The invention concerns a method for transverse ultrasound peening of blades (2) on a rotor which consists in driving in rotation the wheel (3) bearing the blades (2) about its geometrical axis (6) arranged substantially vertically and in causing the blades (2) to pass through a mist of microbeads produced by a vibrating surface (20) in an active chamber (12) arranged laterally relative to the wheel. The active surface (20) is located beneath the path of the blades (2). Preferably, the active chamber (12) comprises a second vibrating surface above the path of the blades (2). The invention also concerns a machine for implementing said method.