Abstract
A new hybrid process of laser rapid forming (LRF) assisted by ultrasonic shot peening (LRF-USP) is proposed to improving the tensile and stress rupture properties at laser rapid forming. Based on mechanism analysis of laser rapid forming and ultrasonic shot peening, a processing model of LRF-USP is built. The special experimental equipments were designed and made. Forming experiments on the Nickel-based superalloy powders were conducted with the equipments, and the samples were analyzed by scanning electronic microscopy (SEM) and energy dispersive spectrometer (EDS). The result shows that theoretical model and experimental results are identical well with each other. During LRF-USP, USP can refine grain sizes and eliminate the residual tensile stress produced by LRF, forming a residual plastic field with compressive stresses.
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.
