Abstract
As precision machining process of aero-engine blades, the surface integrity after abrasive belt grinding closely related to its fatigue resistance. In order to explore new anti-fatigue abrasive belt grinding methods, reveal the influence mechanism of blade surface integrity on anti-fatigue performance, and provide guidance for the anti-fatigue grinding, vibration fatigue tests were carried out on blades processed by different grinding process, and the effects of abrasive belt passivation treatment and feed speed on blade surface integrity and fatigue life were studied. Fatigue failure behavior of blades processed by different processes were also discussed from the fracture morphology and cross-section analysis. Results showed that blades processed by blunt grinding have different fatigue failure mechanisms, and the passivation treatment of abrasive belt and low feed speed can improve the surface integrity and fatigue life of aero-engine blades. The combination process of abrasive belt passivation treatment and slow feed speed were proposed for anti-fatigue grinding processing of aero-engine blades. In this research, compared with blades processed by new abrasive belt with feed speed 1000 mm/min, the fatigue life of blades processed by passivated abrasive belt at feed speed 100 mm/min was increased by 3.1 times.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
